From: oes Date: Tue, 3 Sep 2002 16:12:41 +0000 (+0000) Subject: Removed obsolete files X-Git-Tag: v_3_1_archive_branchpoint~204 X-Git-Url: http://www.privoxy.org/gitweb/@default-cgi@/faq/%22https:/@default-cgi@edit-actions-remove-url?a=commitdiff_plain;h=7b598f93f406214aa7b946e4ca52f5b837b97ea5;p=privoxy.git Removed obsolete files --- diff --git a/doc/obsolete/fb.gif b/doc/obsolete/fb.gif deleted file mode 100755 index 43059924..00000000 Binary files a/doc/obsolete/fb.gif and /dev/null differ diff --git a/doc/obsolete/ijbfaq.html b/doc/obsolete/ijbfaq.html deleted file mode 100644 index 3d522479..00000000 --- a/doc/obsolete/ijbfaq.html +++ /dev/null @@ -1,1999 +0,0 @@ - - - - - - Internet Junkbuster Frequently Asked Questions - - - - - - -

- Website · - Manual · FAQ · GPL

- -

Internet - JUNKBUSTER - Frequently Asked Questions

- -

Configuring - Browsers · - IE 5.0 · - Installation · For Companies · Blocking Ads · - Cookies · Hotmail · Children · Forwarding/Chaining - · IP - · Anonymity - · Security

- -

This document is out of date

- -

Development of JunkBuster is ongoing and this document is - no longer current. However, it may provide some assistance. If - you have problems, please use the Yahoo Groups - mailing list (which includes an archive of mail), the - SourceForge.net project page, or - see the project's home - page. Please also bear in mind that versions 2.9.x of - JunkBuster are development releases, and are not production - quality.

- -

The Top Ten Questions

- -

What is the Internet Junkbuster - Proxy and what does it do for me?

- -

The Internet Junkbuster Proxy ^TM - is free privacy-enhancing software that can be run on your PC - or by your ISP or company. It blocks requests for URLs - (typically banner ads) that match its blockfile. It also - deletes unauthorized cookies and other unwanted identifying - header information that is exchanged between web servers and - browsers. These headers are not normally accessible to users - (even though they may contain information that's important to - your privacy), but with the Internet Junkbuster you can see - almost anything you want and - control everything you're likely to need. Many people publish - their blockfiles to help others get started.

- -

Is there a license fee / warranty - / registration form / expiration?

- -

No, none of these. It's completely free of charge. - Junkbusters offers you the software to copy, use, modify and - distribute as you wish, forever, at no charge under the GNU - General Public License.

- -

It comes with no warranty of any - kind.

- -

You don't have to register, in fact - we don't even provide a way to do so: the practice of - registering software is usually just an excuse to send you - solicitations and sell your name and information about your - behavior. You are welcome to obtain and use our software as - anonymously you wish. (Your IP address will naturally be - disclosed when you download it; use anonymizing software if you - want to conceal this. We never want to be given any information - that you consider private or confidential.)

- -

We are often asked why we give away a - product that many would happily pay for. The answer is that we - are determined to carry out our mission: to free the world from - junk communications.

- -

Does it run on Windows? On a Mac? - On the AOL browser?

- -

For the latest information on availability, see the - Distribution Information page. We don't think it will ever run - on Windows 3.1. But you don't need to have it running on your - computer if you get your ISP or Systems Administrator at work - to run it.

- -

How can I get my ISP to run the - Internet Junkbuster?

- -

Try their sales or support department (depending on whether - you are already a customer). You might - send them email including the following URL:
- - http://www.junkbusters.com/ht/en/ijbfaq.html#isps
- You could mention that many other ISPs - provide it, and that you regard it as an important part of your - decision on where to buy Internet service.

- -

Who chooses the options that - control what is blocked?

- -

Whoever starts the Internet Junkbuster chooses the options - and the blockfile. If your ISP runs it for you, they have to - make these decision (though some may give you a choice of - proxies, and a way to suggest new URLs to block). If you run it - on your computer, you get to choose.

- -

How do I download and run the - program on my computer?

- -

It depends on your platform. If you are using Windows 95 or - NT, see our separate page on installing under Windows. If you - have a C compiler and are using almost any flavor of UNIX ® - you download it, compile it, start it running, and then - configure your browser. Several precompiled packages are also - available through links in our distribution page, which lists - all available platforms.

- -

If you are using a platform for which we - have no current availability, you are welcome to port the code. - If you do this and you would like us to consider publishing - your ported version, please tell us.

- -

How can I tell which blockfile - and options are being used?

- -

Just point your browser to - http://internet.junkbuster.com/cgi-bin/show-proxy-args or to - any URL ending in show-proxy-args (even if it - doesn't exist). It needn't exist because the Internet - Junkbuster intercepts the request, blocks it, and returns in - its place information about itself. Using the URL above is - useful for checking that your browser really is going through - an Internet Junkbuster, because the junkbuster.com - server returns a warning if the request actually gets to it. - Some people set the home page of their browser to such a URL to - be sure that it is configured to use the proxy.

- -

If you wish to check the header - information your proxy is actually sending, a visit to - http://internet.junkbuster.com/cgi-bin/show_http_headers will - give you the more relevant ones first. You might also like to - turn the proxy off and compare the difference. (Don't forget to - turn it back on again.)

- -

My browser started giving me - ``server not responding'' messages

- -

Once your browser is told to use a proxy such as the - Internet Junkbuster, it thinks of it as its server for - everything, so this message means it can't talk to the proxy. - The Internet Junkbuster may not be running, or you may have - specified its proxy address incorrectly. Check that the details - you entered are correct. If you have telnet you - can try connecting to the appropriate port to see if the - Internet Junkbuster is running. If your ISP is running the - Internet Junkbuster, you may want to check with them. If you - are running it yourself under UNIX ®, try looking at a - ps ax to see if it is running. The port specified in its options should be - the same one as your browser has configured.

- -

I've got this great idea for a - new feature. Who do I tell?

- -

We'd be very interested to hear it, but please bear a few - things in mind.

- -

Please check this FAQ to see if - we've already considered the idea, such as automatic - detection of banner ads and replacing ads with something else - such as a transparent GIF.
Don't tell us anything you - want to keep confidential or retain some right over.
We currently have a long wish list of - things that we may or may not do in the near future, - including a version for your favorite computer and a plug-in - version.
If you don't want to wait you're - welcome to improve on our code, publish your version on the - Web, and tell us where to find it. Projects that are - especially welcome include a port to the Mac and extensions - for HTTP 1.1. (Meanwhile, be sure your browser is configured - not to use HTTP 1.1.)

- -

My question isn't listed here. - Who do I ask for support?

- -

If you find using our free product - harder than you're used to for consumer software, there are - many commercial alternatives that you could consider.

- -

The answer to detailed technical questions - may be answered in manual page, or in - the source code. Also double-check this page for an answer: - using the ``find'' feature on your browser for likely keywords - may help. Our site also has a search feature.

- -

Many people post requests for help and - responses on Usenet.

- -

If your ISP is providing the Internet - Junkbuster for you, and your question is about how to use it, - check their web page before asking them.

- -

Even though we don't offer the kind of - support you might expect if you paid a lot of money for a - software product, you can still ask us. But before you do, - please consider whether you could ask someone closer to you. - And please be patient if we're slow to reply: we never charge - consumers for our services, so we have to subsidize consumers - with revenue from companies, and our resources are limited.

- -

If your company or organization would be - interested in a maintenance contract with phone and email - support, hard copy documentation and source code and - pre-compiled binaries on tape or disk, please ask us for a - quote.

- -

Configuring your browser to talk to - the Internet Junkbuster

- -

What is the proxy address of the - Internet Junkbuster?

- -

If you set up the Internet - Junkbuster to run on the computer you browse from (rather than - your ISP's server or some networked computer at work), the - proxy will be on localhost (which is the special - name used by every computer on the Internet to refer to itself) - and the port will be 8000 (unless you have told - the Internet Junkbuster to run on a different port with the listen-address option). - So you when configuring your browser's proxy settings you - typically enter the word localhost in the two - boxes next to HTTP and - Secure, and the number 8000 in the two boxes - labeled to the right of those boxes. The - Internet Junkbuster does not currently handle other protocols - such as Gopher, FTP, or WAIS, so leave those setting unchanged. - Nor does it handle ICQ or Instant Messenger services.

- -

If your ISP or company is running the - Internet Junkbuster for you, they will tell you the address to - use. It will be the name of the computer it's running on (or - possibly its numeric IP address), plus a port number. Port 8000 - is the default, so assume this number if it is not specified. - Sometimes a colon is used to glue them together, as in - junkbuster.fictitious-pro-privacy-isp.net:8000 but with - most browsers you do not type the colon, you enter the address - and port number in separate boxes.

- -

How do I tell the browser where - to find the Internet Junkbuster?

- -

All current browsers can be told the address of a proxy to - use. You enter the same information in two fields in your - browser's proxy configuration screen (see list below): one for - HTTP, and one for the Secure Protocol (assuming your browser - supports SSL). If you find some information already entered for - your proxy, see the next question. Here are the menus you go - through to get to the proxy configuration settings. (We also - recommend that you disable Java, which is a separate - operation.) Make notes on the changes you make so you - know how to undo them! You will need to know what you - did in case you wish to discontinue using the proxy.

- -

For Netscape 2.01, 2.02 and 3.0 - [Graphic Illustration]: Options; Network Preferences; Proxies; Manual Proxy Configuration View ; enter proxy - address details under HTTP and Security Proxy; click on OK; click - on the next OK. [Return to Windows - Installation Procedure]
- With Netscape 2.0, follow with Options, Save Options.
- With Netscape 4.X series, you - first have to go through Edit/Preferences. - [Graphic Illustration] Then in the frame on the left, click - on triangle pointing to the right towards the word Advanced; it will switch to a triangle pointing - down; and the words Cache, - Proxies and Disk Space appear. Click on - Proxies and the frame on the right will - display a banner saying Proxies Configure - proxies to access the Internet. Click the radio button - labeled Manual proxy configuration then - click the button labeled View; enter proxy - address details under HTTP and Security Proxy; click on OK; click - on the next OK. [Return to Windows - Installation Procedure]
For Internet Explorer 3.0 - [Graphic Illustration]: View; Options; Connections; tick Connect through proxy server box; Settings; enter proxy address details - HTTP Box, with port number in the second box; same with - Secure; click on OK. - [Return to Windows Installation Procedure]
For Internet Explorer 2.0: View; Options; Proxy; enter proxy address details click on OK. [Return to Windows Installation - Procedure]
On NT for MS-IE: Control - Panel; Internet; - Advanced; Proxy.
For MS-IE 4.0: similar to 3.0: View; Internet Options; Connection; tick Access Internet using - a proxy server box; from there we have had reports of - different versions, either click on - Advanced or Settings; enter proxy - address details HTTP Box, with port number - in the second box; same with Secure; click - on OK. Note that 4.0 has - Advanced settings to allow HTTP 1.1 through proxies; - these must be disabled because the proxy does not currently - understand HTTP 1.1. Please tell us if you see any other - differences. [Return to Windows Installation Procedure]
For MS-IE 5.0: similar to 4.0: Tools|Internet Options from the menu bar; Connections. Select either dial-up connection - or LAN (depending on how you connect to the Internet); press - Settings; and check the Use - Proxy Server box; enter proxy address details in the HTTP Box, with port number in the second box; - same with Secure; click on - OK buttons to get out. Note: You must also uncheck the HTTP 1.1 checkboxes - at the end of the Advanced options. This - seems to have been made the default in IE 5.0. [Return to - Windows Installation Procedure]
For Netscape's level 5 browser, we - have no information. If you do, please tell us.
For NCSA Mosaic for Windows: Options, Preferences, Proxy; enter proxy address details under HTTP.
For Opera: - Preferences, Proxy servers; check the - box next to HTTP; enter the server and port number in the box - on the other side; click on OK.
For Lynx, Mosaic/X, Grail, and - W3O Arena, you can specify the proxy via environment - variables before starting the application. This will probably - be done with something like either
- setenv http_proxy - http://localhost:8000/
- or
- - http_proxy=http://junkbuster.fictitious-pro-privacy-isp.net:8000/ - export http_proxy
- depending on your shell and where the Internet Junkbuster - lives.

- -

If your browser is not listed here, or if you notice an - error, please tell us the correct procedure.

- -

What should I do if I find - another proxy is already configured?

- -

Some ISPs and companies require all Web traffic to go - through their proxy. In this case you would find your proxy - configuration with values already set, possibly under Automatic Proxy Configuration (in the case of - Netscape and MS-IE 3.0 and above). It's probably a firewall - proxy between your company and the outside world, or a caching proxy if you're using an ISP.

- -

What needs to be done in this case is to use - the forwardfile option to - tell the Internet Junkbuster the address of the other proxy. - Specify a different (unused) port number with the listen-address option, and - configure your browser to use that port. If you haven't done - this kind of thing before, it's probably best to consult your - systems administrator or ISP about it; check their web page - first.

- -

What if I want to stop using - the Internet Junkbuster?

- -

Just go through the same procedure you used to start your - browser using the Internet Junkbuster, but remove the details - you put in (or if there was something there before, restore - it). You may need to use Save Options to make - this change permanent. On Netscape 3.0 you can go through Options; Network Preferences; - Proxies and click on No - Proxy to turn it off, and later click on - Manual Proxy Configuration if you want to start using it - again. (No need to enter the again details under - View as you did the first time; they should remain there - unchanged.)

- -

This stops your browser talking to the - proxy; shutting down the proxy is a different matter.

- -

Automatic dialing isn't working - any more. How do I fix it?

- -

Some browsers (such as MSIE-4) can be configured to dial - your ISP automatically when you click on a link, but this - feature (called "automatically connect" or "autoconnect") gets - disabled if you specify a proxy running on your own computer - (with address localhost or 127.0.0.1) - because these addresses don't require dialing. The Internet - Junkbuster knows nothing about dialing, so it doesn't work. To - make automatic dialing work, make up a name such as - junkbuster.ijb and use that name in the proxy settings - instead of localhost, and then add the line - 127.0.0.1 junkbuster.ijb to the file - c:\windows\hosts (if there already is a line beginning - with 127.0.0.1 just add - junkbuster.ijb at the end of it.)

- -

This should also work Netscape - Communicator 4 on machines where IE-4 has been installed.

- -

Setting up the Internet Junkbuster on - your local computer

- -

The next two sections assume you wish to compile the code - with your own C compiler. If you just - want to use the .exe file provided for Windows, - see the Windows Installation page.

- -

How do I compile the code under - Unix?

- -

If you are running Redhat Linux you may prefer to use the - rpm instead of the following procedure.

- -

First download the tar file - (~286k) and uncompress and extract the - files from it with this command
- uncompress -c ijb20.tar.Z | tar xf - -
If your operating system is from Sun or - HP examine the Makefile and make any changes - indicated inside.
Run
-
- make
- Copy the sample configuration file - (junkbstr.ini, previously called - sconfig.txt and other names in earlier releases) to - some convenient place such as - /usr/local/lib/junkbuster/configfile or whatever you - choose. The sample file has all the options commented out. - You can remove the # character on any that you - want, but it may be better to leave this until to later. - Run it asynchronously:
-
- junkbuster configfile & - - -
If you are running a version earlier than 2.0 you can - start it with junkbuster &
-
Configure your browser (described - above).
Verify that the Internet Junkbuster is - working (described above).
Decide on the options you really - want, kill the process and start it again. The - most popular option is - blockfile to block ads. A - sample blockfile is provided as an illustration, but it - doesn't really stop many ads. More comprehensive ones are - available elsewhere.
You'll probably want to add an entry to - /etc/rc.d/rc.local or equivalent to start it at - boot time. (Any output you specify should be redirected to a - file. And don't forget the & at the end to run it - asynchronously or your system will seize up after the next - reboot.)

- -

How do I compile the code under - Windows?

- -

A .exe file (binary) is supplied with the - source code, but if you prefer to compile it yourself here is - the likely procedure. Most of these steps are repeated in our - checklist for installation under Windows.

- -

First click here to download the zip - file called ijb20.zip (~208k), then uncompress - and unpack the zip archive using a tool like WinZip.
Now the distribution (source and - sample files) will be in a folder called ijb20. - Go into that folder and then edit the Makefile for your - system, removing the comment character (#) in - the lines related to Win32. Then type:
- nmake
- This should create an executable called - junkbstr.exe. For information - on issues with various compilers, see the Distribution - Information page.
- Run the executable with the - command:
- junkbstr
- (Click on the icon with that name - that looks like a terminal, not like a notepad.) The - program will produce a message indicating that it has - started and is ready to serve. - -
(Version 2.0.1 and above uses the file - junkbstr.ini as the config file if it exists - and no argument was given. If you have an earlier version - or if you want it to use a different config file, simply - specify that file as the argument.)
-
Configure your browser - (described above).
Check the proxy is working (described - below).
- To have the proxy start itself - automatically when you login to Win95, drop the - ``shortcut'' to the junkbstr executable into - the StartUp folder:
- C:\Windows\Start - Menu\Programs\StartUp
- You might want to change the shortcut's - Properties->Shortcut to Run: - Minimized. If you specify the hide-console option then the - DOS window will vanish after it starts. - -
WinNT users can put it into their own - StartUp folders or the Administrator can put it into the - system's global StartUp folder. For details on how to make - this a service under NT see our Windows page.
-

- -

How do I check that the proxy is - working?

- -

Pick a page from somewhere (such as your bookmarks, or just - one that your browser was pointing to) and - Reload it. If you get a message along the lines of ``server - not responding, using cached copy instead,'' see the advice - above. If the page reloads OK, check that your browser is - actually talking to the proxy by going to - http://internet.junkbuster.com/cgi-bin/show-proxy-args or any - URL ending in show-proxy-args (as described below, - the proxy should intercept the request.) When you see - ``Internet Junkbuster Proxy Status,'' you'll know it's - working.

- -

How and why would I have this - proxy chained with other proxies?

- -

You may need the - forwarding feature to ``daisy chain'' the Internet - Junkbuster to another proxy, perhaps an anonymizing proxy to - conceal your IP address, or a caching proxy from your ISP, or a - firewall proxy between your company and the outside world. - Version 2.0 and above can be even configured to forward selectively according to the - URL requested: for example, connecting directly to trusted - hosts, but going through an anonymizing or firewall proxy for - all other hosts.

- -

Network administrators might use - it to provide transparent access to multiple networks without - modifying browser configurations. Most - browsers also provide a way of specifying hosts that the - browser connects to directly, bypassing the proxy. Some provide - a method for Automatic Proxy Configuration. A well written - Internet Junkbuster configuration can be much more flexible and - powerful.

- -

An ISP's caching proxy would typically - be called something like cache.your-isp.net:8080 - (as described on you ISP's web page); you would put this - information in your - forwardfile as described in our manual. Your browser would - be configured to the Internet Junkbuster for HTTP and Security - Proxies as before, but you probably want to tell it to use the - caching proxy for FTP and other protocols. - If your ISP is running the Internet Junkbuster for you, - they have probably already decided whether to chain with a - caching proxy.

- -

How does the Internet Junkbuster - work with SOCKS gateways?

- -

There is support for some gateways in Version 1.4 and above. - The gateway protocol used to be specified on the command line; - it is now specified in the same file as forwarding. Note that the - browser's proxy configuration must not specify a - SOCKS host; it should specify the proxy as - described above.

- -

How do I configure it to be just - a plain old proxy?

- -

To get the proxy to do as little as possible (which means - not deleting any sensitive headers), place in your - configuration file the following three lines (each ending in a - space then a period) to stop it changing sensitive headers:
-    referer .
-    from .
-    user-agent .
-    cookiefile mycookiefile
- The fourth line is also needed to specify a cookiefile that might be called - mycookiefile containing a single line with a - * character, to allow all cookies through.

- -

How do I shut down the proxy (to - restart it)?

- -

It depends on your platform.

- -

Under Windows, you can click on the "X" - button at the top right of the DOS window (and answer Yes when Windows warns you it cannot shut down - the program automatically), or use - Ctrl-Break or the old three-fingered salute of Ctrl-Alt-Delete and select End - Task.
Under UNIX ® you'll need to - kill the junkbuster process. If you don't know the process number to give - to kill, try this:
- ps ax | grep junkbuster

- -

Information for companies

- -

What do advertising companies - think of this kind of technology?

- -

We've seen only a few public comments from the advertising - industry on this, other than SEC filings. First, the president - of the Internet Advertising Bureau told CNET that he wasn't - worried by banner blockers. Second, after the Federal Trade - Commission's workshop where we gave a live demonstration of our - proxy before many eminent representatives of the industry, the - Direct Marketing Association made the following statement in - the closing paragraphs of their summary comments to the - Commission.

- -

- Clever shareware developers have come up with products that - can obliterate cookies and advertisements for those consumers - who have these concerns. The Internet is a market that is so - democratic and flexible that it is easy for companies and - software developers to respond to a perceived market need. -

- -

Their attitude seems to be that they would prefer that - people use technical solutions to protect their privacy than - have protections imposed by legislation or government - regulations. So, do you perceive a market need? Then here are - some ways to flex your democratic muscles.

- -

Should we provide the - Internet Junkbuster for our employees?

- -

That depends. Try this quick three-point test.

- -

Do you want to spend your - communications budget on bandwidth that wastes your - employees' time by forcing them to wait for a lot of annoying - distractions while they're trying to do their jobs?
Do you want current and - potential vendors to know quantitative details about the - software and hardware platforms that you have?
Do you want your competitors - to be able to track exactly which of your employees are - checking out their web sites?

- -

If the answer to all three questions is yes, then you - probably don't have any need for this kind of product.

- -

Can our company get - commercial support for the software?

- -

Yes, ask us for a quote on a maintenance contract with your - choice of phone and email support, hard copy documentation, - source code and pre-compiled binaries on tape or disk, and - email alerting of upgrades and issues. We also offer consulting - services to help set up ``stealth browsing'' capabilities to - help reduce the footprints left while doing competitive - analysis and other Web work where confidentiality is - critical.

- -

I run an ISP. What issues should - I consider before offering it?

- -

Many ISPs who offer the proxy to their customers have told - us that most of their customers are delighted with it (although - one reported that a customer complaint that without banner ads, - surfing was like reading a novel: we recommend making it - optional). Many ISPs like it because it reduces bandwidth - requirements. To help get you started, here's a checklist we've - developed from working with a few ISPs. You may think of more, - and we'd be interested if you're willing to share them with - us.

- -

If you get more than one request - for the Internet Junkbuster you may want to tell your - customers on your News page that you already know about it - and are assessing it.
Try the software and verify that it - performs satisfactorily.
Determine whether your customers - perceive the service as valuable (and therefore worth the - time to set up). We've had reports of many delighted - customers.
Assess the level of security - associated with the software. If access is to be restricted - (to just dial-in ports, for example) how is this to be - done?
Consider whether to expect any - additional load on computing resources required, and any - change in use of bandwidth due to the blocking of large - GIFs.
Choose the - options you wish to provide.
- Decide whether you want to offer a - choice of configurations, such some of these four. - -
1. Banners Blocked, Wafer with - No-Cookie-Copyright notice
2. Cookies not stopped (cookiefile with just a - * in it), User Agent specified as Lynx
3. Cookies from browser allowed, - permitting registered services
4. A proxy for kids.
- If you run a caching proxy, decide - whether the Internet Junkbuster will chain with it by - default, and whether to offer an alternate with no caching. - (Some ISPs don't, because they want to give customers an - incentive to use caching and save bandwidth.) -
Decide on a naming scheme for your - proxies. If you're running only one proxy on one machine, the - simplest way is to just use port 8000 on your main machine, - such as our-isp.net. But it would probably be - safer to put an entry in your name server and call it - something like junkbuster.our-isp.net. If - running several proxies, you could either use different ports - on the same machine, or if you have the opportunity to - distribute the load over a few machines you could use - different hostname aliases such as - banner.junkbuster.our-isp.net, - lynx.junkbuster.our-isp.net and - oneway.junkbuster.our-isp.net (corresponding to the - examples in the previous point). You may want to set up - Automatic Proxy Configuration.
- Prepare a page explaining the - Internet Junkbuster to your customers. - Here's are some examples from Australia, Germany, Florida, - New York/New Jersey/Pennsylvania, North Carolina, Texas, - and Utah. You are welcome to copy and - modify material from Junkbusters according to the GPL. You - might want to set up a process to check this page - periodically and update it when it changes. (A few links - can probably serve as well as lot of copying however.) A - typical page would probably specify the following. - -
1. A brief explanation stating - what the Internet Junkbuster does, with a link to this - page.
2. The addresses of the proxy or - proxies, with their port number(s).
3. The options used, and how to - view the contents of the blockfile (which you can place - on your web pages, preferably in a file called - blocklist.html or - blocklist.txt).
4. An indication of whether - suggestions for the blocklist are considered, and if so, - how to submit them: to a particular email address, via - web-based form, etc.
5. Instructions on how to - configure a browser. You may want to include details for - only the two major browsers and leave the others to a - link.
6. Procedures on how to report - problems, give feedback etc.
-
Invite a small number of - technologically sophisticated customers to beta-test the - service.
Announce general availability on - your ``News'' page. Tell us if you would like to be included - on a list of ISPs offering the Internet Junkbuster.

- -

Blocking

- -

Where can I get an example - blockfile that stops most ads?

- -

The sample blockfile we provide blocks almost nothing, and - we do not publish blockfiles that stop almost all banner ads. - But others have; you can find them by asking Google. You can - add any part of the new file to your old one (probably called - sblock.ini if you haven't changed the default name - in the latest version) or your just replace it completely. You - probably don't need to restart the proxy.

- -

If you develop an interesting blocklist - and publish it on the Web, you might want to include the word - ``junkbuster'' in it and use the word ``blocklist'' in the file - name given in the URL so that others can find it with the query - given in the previous sentence.

- -

If I see an ad I wish I hadn't, - how do I stop it?

- -

If your ISP is running the Internet Junkbuster, they should - have a policy on whether they accept suggestions from their - customers on what to block. Consult their web page.

- -

If you are running the Internet - Junkbuster yourself, you have complete control over what gets - through. Just add a pattern to cover the offending URL to your - blockfile. Version 1.3 and later automatically rereads the - blockfile when it changes, but if you're running an earlier - version you'll have to stop it and restart it.

- -

To choose a pattern you'll first need - to find the URL of the ad you want cover.

- -

Some people use the debug 1 option to display - each URL in a window as the request is sent to the server. It's - then usually an easy task to pick the offending URL from the - list of recent candidates.

- -

Alternatively, you can use View Document Info (or View Document - Source if your browser doesn't have that). The Info feature has the advantage of showing you the full - URL including the host name, which may not be specified in the - source: there you might see something like - SRC="/ads/click_here_or_die.gif" indicating only the - path. (The host name is assumed to be the same - as the one the page came from.)

- -

But ads often come from a different - site, in which case you might see something like - SRC="grabem.n.trackem.com/Ad/Infinitum/SpaceID=1666" or - longer. If the company looks like a - pure ad warehouse (as in the last case), you may want to place - just its domain name in the blockfile, which blocks all URLs - from that site.

- -

If the ad comes from a server that you - really want some content from, you can include enough of the - path to avoid zapping stuff you might want. In the first - example above, /ads/ would seem to be enough. If - you don't include the domain name, the pattern applies to all - sites, so you don't want such patterns to be too general: for - example /ad would block - /admin/salaries/ on your company's internal site.

- -

To speed the blocking of images, some - UNIX ® users create a shell script called - Image: containing a line such as echo $1 | sed - s/http:..// >> $HOME/lib/blockfile that adds its - argument to the user's blockfile. Once an offending image has - been be found using View Document Info it's - easy to cut-and-paste the line (or part of it) into a shell - window. The same script can be linked to a file called - Frame: to dealing with framed documents, and - junkbuster: to accept the output of the debug option.

- -

When compiled without the - regular expressions option, the Internet Junkbuster - uses only very simple (and fast) matching methods. The pattern - /banners will not stop - /images/banners/huge.gif getting through: you would have - to include the pattern /images/banners or - something that matches in full from the left. - So you can get what you want here, the matcher understands - POSIX regular expressions: you can use - /*.*/banners to block and any URL containing - /banners (even in the middle of the path). (In Versions 1.1 through 1.4 they were an option at - compile time; from Version 2.0 they have become the default.) - Regular expressions give you many more features than this, but - if you're not already familiar with them you probably won't - need to know anything beyond the /*.*/ idiom. If - you do, a man egrep is probably a good starting - point).

- -

Don't forget the / (slash) - at the beginning of the path. If you leave it out the line will - be interpreted as a domain name, so ad would block - all sites from Andorra (since .ad is the - two-letter country code for that principality).

- -

For a detailed technical description of - how pattern matching is done, see the manual.

- -

How come this ad is still getting - through anyway?

- -

If the ad had been displayed before you included its URL in - the blockfile, it will probably be held in cache for some time, - so it will be displayed without the need for any request to the - server. Using the debug - 1 option to show each URL as it is fetched is a good way - to see exactly what is happening.

- -

If new items seem to be getting - through, check that you are really running the proxy with the - right blockfile in the options. Check the blockfile for - exceptions.

- -

Some sites may have different ways of - inserting ads, such as via Java. If you have ideas on how to - block new kinds of junk not currently covered, please tell - us.

- -

How do I stop it blocking a - URL that I actually want?

- -

You can change the patterns so they don't cover it, or use a - simple feature in Version 1.1 and later: a line beginning with - a ~ character means that a URL blocked by previous - patterns that matches the rest of the line is let through. For - example, the pattern /ad would block - /addasite.html but not if followed by - ~/addasite in the blockfile. Or suppose you want to see - everything that comes from a site you like, even if it looks - like an ad: simply put ~aSiteYouLike.com at the - end of the blockfile. (Order is important, because the - last matching line wins.)

- -

As well as unblocking pages that were - unintentionally blocked, this feature is useful for unblocking - ads from a specific source. This might be because you are - interested in those particular ones, or if you have an explicit - agreement to accept certain ads, such as those from a free - web-based email provider.

- -

If you want to find out exactly which - pattern in the blockfile a given URL matched, just click on the - words ``Internet Junkbuster'' which are displayed alone on a - page when your browser requests a blocked URL. The proxy - displays a message that pinpoints the pattern for you.

- -

Can I block sites I don't want my - children to see?

- -

Yes, but remember that children who are - technically sophisticated enough to use the browsers' proxy - configuration options could of course bypass any proxy. This - kind of technology can be used as a gentle barrier to remind or - guide the child, but nobody should expect it to replace the - parent's role in setting and enforcing standards of online - behavior for their children.

- -

Some ISPs are starting to provide - specialized proxies to protect children. There are two basic - approaches: the ``black list'' and the ``white list'' approach. - The black list approach allows the child - to go anywhere not explicitly prohibited; the white list - permits visits only to sites explicitly designated as - acceptable.

- -

It's very easy for anyone to compile - a white list from a page of ``recommended kids sites'' and to - configure an Internet Junkbuster to allow access to those sites - only. (If you publish such a list on the web, please tell us - its URL). Assuming your version isn't an old one without regex, - you can place a * (asterisk) as the first line of - the blockfile (which blocks everything), and then list - exceptions after that. Be careful to make the exception - sufficiently broad: for example, using - ~www.uexpress.com/ups/comics/ch/ as the exception for - Calvin and Hobbes would block some of the graphic - elements on the page; you would probably want a wider exception - such as ~www.uexpress.com/ups/ to permit them.

- -

Version 2.0 has an experimental feature - to permit only sites mentioned in a nominated trusted site. This allows - organizations to build lists of sites for kids to browse, and - the software automatically restricts access to those on the - list.

- -

Many filtering products actually scan for - keywords in the text of pages they retrieve before presenting - it, but the Internet Junkbuster does not do this. Building a - perfectly reliable black list system is hard, because it's very - difficult to state in advance exactly what is obscene or - unsuitable. For more info see our links page.

- -

What do I see when a page or - graphic is blocked by the proxy?

- -

You usually see a broken image icon, but it depends on - several factors beyond the proxy's control. If asked for a URL - matching its blockfile, the proxy returns an HTML page - containing a message identifying itself (currently the two - words ``Internet Junkbuster'') with a status 202 (Accepted) - instead of the usual 200 (OK). (Versions 1.X returned an error - 404: Forbidden, which caused strange behavior in some cases.) - Status 202 is described in the HTTP RFC as indicating that the - request has been accepted but not completed, and that it might - complete successfully in the future (in our case, if the - blockfile were changed).

- -

The broken image icon is most common - because the browser is usually expecting a graphic. But if it - was expecting text, or if the page happens to be using certain - HTML extensions such as layer and your browser is - a late model from Microsoft, you may see the words ``Internet - Junkbuster'' displayed as a hot link.

- -

Clicking on the link takes you to an - explanation of the pattern in the blockfile that caused the - block, so that you can edit the blockfile and go back and - reload if you really want to see what was blocked. The - explanatory link is generated by the proxy and is automatically - intercepted based on its ending in ij-blocked-url; - even though the site is specified as - http://internet.junkbuster.com no request should - actually made to that site. If one is, it means that the proxy - was been removed after it generated the link.

- -

To summarize: the identifying link to - the blocking explanation is usually turned into a broken image - icon, but it may be displayed on a page alone, or they may may - be restricted to the particular frame, layer or graphic area - specified in the page containing them. The proxy has no way of - knowing the context in which a URL will be used and cannot - control how the blocking message will be rendered.

- -

Why not replace blocked banners - with something invisible?

- -

Many users have suggested to us that - blocked banners should be replaced by a something like a 1x1 - transparent GIF to make the page would look as if there was - nothing ever there. Apart from making it harder to catch - unintended blocking, this might also displease the owners of - the page, who could argue that such a change constitutes a - copyright infringement. We think that merely failing to allow - an included graphic to be accessed would probably not be - considered an infringement: after all this is what happens when - a browser is configured not to load images automatically. - However, we are not lawyers, so anyone in doubt should take - appropriate advice.

- -

In a context where the copyright issue is - resolved satisfactorily, a proxy could simply return a status - 301 or 302 and specify a replacement URL in a - Location and/or URI header. An alternative - would be to use inline code to return a 1 x 1 clear GIF. We do - not publish sample code for this, and we have no way of - stopping others who have.

- -

Why not block banners based on - the dimensions of the image?

- -

Many users have pointed out that most banner ads come in - standard sizes, so why not block all GIFs of those sizes? This - would theoretically be without fetching the object because the - dimensions are usually given in the IMG tag, but - it would require substantial changes in the code, and we doubt - whether it would be much more effective than a good block - list.

- -

What about non-graphic - advertising within the pages I want?

- -

The Internet Junkbuster deliberately does not provide a way - of automatically editing the contents of a page, to remove - textual advertising or to repair the holes left by blocked - banners. Other packages such as WebFilter do.

- -

For the same reason, it has no way of - stopping a new browser window being created, because this is - done through the target attribute in the - <a> and <base> elements, not - through headers. Nor do we plan to add a feature to paralyze - animated GIFs.

- -

Does it block ads on the - broadcasting ``push'' systems? How about pop-up ads?

- -

We haven't tried it but we expect it would probably work on - image ads on push channels. See also adchoice.

- -

Disabling Javascript stops some pop-up - ads. One problem is that some advertisers throw open a new - browser window to frame the ad. The ad is easily blocked, but - the empty window remains. You can kill it easily, but this is a - chore. We don't see how to stop them other than editing the - HTML from the parent window, which we don't like to do.

- -

The TBTF newsletter warned subscribers to - push information that in IE4, LOGTARGET - allows servers to determine the URLs viewed at their site even - if accessed from cache or through a proxy. If you use this - browser see our instructions on how to disable this.

- -

If you find you have experience using - the proxy with push, or have any other advice about it, please - tell us.

- -

Cookies

- -

For background information on cookies see our page - describing their dangers.

- -

Might some cookies still - get through? How can I stop them?

- -

Yes, you should expect the occasional cookie to make it - through to your browser. We know of at least three ways this - can happen; please tell us if you find any others. One way is - in secure documents, which are explained below.

- -

A few sites set cookies using a line - such as <META HTTP-EQUIV="Set-Cookie" - CONTENT="flavor=chocolate"> in the HEAD - section of an HTML document. Cookies - can also be - - set and read in JavaScript. To see if this is happening in a - document, view its source, look in the head for a - section tagged script language="JavaScript". If it - contains a reference to document.cookie, the page - can manipulate your cookie file without sending any cookie - headers. The Internet Junkbuster does not tamper with these - methods. Fortunately they are rarely used at the moment. If a - cookie gets set, it should be stopped by the proxy on its way - back to the server when a page is requested, but it can still - be read in Javascript.

- -

To prevent cookies breaking through, - always keep cookie alerts turned on in your - browser, and disable Java and Javascript. Making the files hard - to write may also help.

- -

Exactly how do cookies get - created and stored anyway?

- -

When a web site's server sends you a page it also sends - certain ``header information'' which your browser records but - does not display. One of these is a Set-Cookie - header, which specifies the cookie information that the server - wants your browser to record. Similarly, when your browser - requests a page it also sends headers, specifying information - such as the graphics formats it understands. If a cookie has - previously been set by a site that matches the URL it is about - to request, your browser adds a Cookie header - quoting the previous information.

- -

For more background information on how - cookies can damage your privacy, see our page on cookies. For - highly detailed technical information see the RFC. The Internet - Junkbuster will show you all headers you use the debug 8 option, or you can - get a sample from our demonstration page.

- -

If cookies can't get through, - will some things stop working for me?

- -

Possibly. Some personalized services including certain - chat rooms require cookies. - Newspapers that require - - registration or - - subscription will not automatically recognize you if you don't - send them the cookie they assigned you. And there are a very - small number of sites that do strange things with cookies; they - don't work for anyone that blocks cookies by any means. Some - sites such as Microsoft explain that their content is so - wonderfully compelling that they will withhold it from you - unless you submit to their inserting cookies.

- -

Many free Web-based email services - require cookies. Hotmail also seems to require allowing both - msn.com and passport.com to set - cookies.

- -

If you want such sites to be given your - cookies, you can use the - cookiefile option provided you are running Version 1.2 or - later yourself. Simply include the domain name of those sites - in the cookiefile specified by this option. If it still - doesn't work, the problem may be in other headers.

- -

It's possible to let cookies out but not - in, which is enough to keep some sites happy, but not all of - them: one newspaper site seems to go into an endless frenzy if - deprived of fresh cookies. A cookiefile containing a single - line consisting of the two characters >* - (greater-than and star) permits server-bound cookies only. The - * is a wildcard - that matches all domains.

- -

If someone else is running the Internet - Junkbuster for you and has a version that - passes server-bound - cookies through, you can try editing your browser's cookie file - to contain just the ones you want, and restart your browser. To subscribe to a new service like this after - you have started using the Internet Junkbuster, you can try the - following: tell your browser to stop using the Internet - Junkbuster, fill out and submit your subscription details - (allowing that web site to set a cookie), then reconfigure your - browser to use the Internet Junkbuster again (and stop more - cookies being sent). This also requires the cookiefile option, and its success - depends on the Web site not wanting to change your cookies at - every session. For this reason it does not work at some major - newspaper sites, for example. But you may - prefer to look at whether other sites provide the same or - better services without demanding the opportunity to track your - behavior. The web is a buyer's market where most prices are - zero: very few people pay for content with money, so why should - you pay with your privacy?

- -

Can I control cookies on a - per-site basis?

- -

Yes, since version 1.2 the Internet - Junkbuster has included advanced cookie management facilities. - Unless you specify otherwise, cookies are discarded - (``crumbled'') by the Internet Junkbuster whether they came - from the server or the browser. In Version 1.2 and later you - can use the cookiefile - option to specify when cookies are to be passed through intact. - It uses the same syntax and - matching algorithm as the blockfile.

- -

If the URL matches a pattern in the - cookiefile then cookies are let through in both - the browser's request for the URL and in the server's response. - One-way permissions can be specified - by starting the line with the > or - < character. For example, a cookiefile consisting of - the four lines
-    org
-     >send-user-cookies.org
-     - <accept-server-cookies.org
-     ~block-all-cookies.org
- allows cookies to and from .org domains only, - with the following exceptions:
-

- -

Cookies sent from servers in the domain - send-user-cookies.org are blocked on their way - to the client, but cookies sent by the browser to that domain - are still be fed to them.
The cookies of - accept-server-cookies.org check in to the proxy and - are passed through to the browser, but when they come back to - the proxy they never check out.
All cookies to and from - block-all-cookies.org are blocked.

- -

If the junkbuster - was compiled with the regular expressions option they may be - used in paths. Any logging to a ``cookie jar'' is separate and - not affected.

- -

It's important to give hosts you want - to be able to set cookies sufficient breadth. For example, - instead of www.yahoo.com use - yahoo.com because the company uses many different hosts - ending in that domain.

- -

Can I make up my own fake cookies - (wafers) to feed to servers?

- -

Yes, using the wafer option. - We coined the term wafer to describe cookies - chosen by a user, not the Web server. Servers may not find - wafers as tasty as the cookies they make themselves. But users - may enjoy controlling servers' diets for various reasons, such - as the following.

- -

Users who consider cookies to be - an unwelcome intrusion and a waste of their disk space can - respond in kind. By writing ``signature wafers'' they can - express their feelings about cookies, in a place that the - people in charge of them are most likely to notice.
- Sites running a proxy that logs - cookies to a file (such as the Internet Junkbuster does - with the jarfile option - on) may want to notify servers that their cookies are being - intercepted, deleted or copied. One possible reason for - doing this is the uncertain copyright status of cookie - strings. Nothing here should be taken as legal advice: we - are simply raising a question for any interested parties to - consider, and make no representation that such measures are - necessary or sufficient. Concerned proxy sites might decide - to send a wafer (named ``NOTICE'' for example) containing - text along the lines of the following. - -
-
TO WHOM IT - MAY CONCERN
-
- Do not send me any copyrighted information other than - the document that I am requesting or any of its necessary - components.
-
- In particular do not send me any cookies that are - subject to a claim of copyright by anybody. Take notice - that I refuse to be bound by any license condition - (copyright or otherwise) applying to any cookie.
-
- Any company that tries to argue in court that the proxy - site was breaching their copyright in the cookies would be - met with the defense that the proxy site gave that company - the opportunity to protect its copyright by simply not - sending cookies after receiving the notice. - -
Cookies can be as long as four - thousand characters, so there's plenty of space for - lawyerly verbosity, but white space, commas, and - semi-colons are prohibited. - Spaces can be turned into underscores. Alternatively, a URL - could be sent as the cookie value, pointing to a document - containing a notice, perhaps with a suggestive value such - as
- - http://www.junkbusters.com/ht/en/ijbfaq.html#licenses_on_cookies_refused
- - But including the notice directly would probably be - preferable because the addressee does not have to look it - up.
- -
The Internet Junkbuster 2.0.2 - currently sends a full notice as a ``vanilla wafer'' if - cookies are being logged to a cookie jar and no other - wafers have been specified. It can be suppressed with the - - suppress-vanilla-wafer option, which might be used in - situations where there is an established understanding - between the proxy and all who serve it.
-

- -

Junkbusters provides a CGI script that - lets you see your wafers as they appear to servers.

- -

Wafers confuse a few fragile - servers. Hotmail appears to be one of them. If this troubles - you, don't use this option.

- -

Any wafers specified are sent to - all sites regardless of the cookiefile. - They are appended after any genuine cookies, to maintain - compliance with RFC 2109 in the event that a path was specified - for a cookie. The RFC's provisions regarding the $ - character (such as the Version attribute) are - transparent to the proxy; it simply quotes what was recited by - the browser.

- -

If you want to send wafers only to - specific sites, you could try putting them your browser's - cookie file in a format conforming to the Netscape - specification, and then specify in the proxy's cookiefile that - cookies are to be sent to but not accepted from those sites, so - they can't overwrite the file. This may work with Netscape but - not all other browsers.

- -

Why would anyone want to save - their cookies in a ``cookie jar?''

- -

We provided this capability just in case anyone wants it. - There are a few possible reasons.

- -

It's conceivable that marketing - companies might one day buy history files and cookie jars - from consumers in the same way that they currently pay them - to fill out survey forms. With this information they could - gather psychographic information, see which competitors' - sites the consumer has visited, and discover what advertising - is being targeted at them.
Some consumers might employ - semi-automated means of sorting through their cookie jars, - selecting which ones to place in their cookies file for use - by their browsers. Their decisions could be based on payments - offered, privacy rating systems such as TRUSTe proposes, or - their own opinion of the company. It could be done manually - or with software. There's an Internet Draft on trust - certification of cookies.
Users may even start ``sharing'' - cookies among themselves, sending back cookies that servers - generated for other visitors. Servers that aren't expecting - this possibility will be misled about their visitors' - identities. Cookies could be shared among users on a single - machine, or across continents via FTP and anonymous - remailers. Privacy activists may - promote cookie disinformation campaigns as a way to defend - the public against abuse. If a significant percentage of - people send disinformative cookies, user tracking via cookies - may become less reliable and less used.

- -

Anonymity

- -

For details on how your identity can be revealed while you - surf, see our page on privacy. Once you start using the - Internet Junkbuster you should find that much of the - information previously indicated on that page will no longer be - provided. If the REMOTE HOST indicating your IP - address is too close for comfort, see our suggestions below on - how to conceal your IP address. We also recommend that you - disable JavaScript and Java.

- -

If I use the Internet Junkbuster, - will my anonymity be guaranteed?

- -

No. Your chances of remaining anonymous are improved, but - unless you are an expert on Internet security it would be - safest to assume that everything you do on the Web can be - attributed to you personally.

- -

The Internet Junkbuster removes various - information about you, but it's still possible that web sites - can find out who you are. Here's one way this can happen.

- -

A few browsers disclose the user's email - address in certain situations, such as when transferring a file - by FTP. The Internet Junkbuster 2.0.2 does not filter the FTP - stream. If you need this feature, or are concerned about the - mail handler of your browser disclosing your email address, you - might consider products such as NSClean.

- -

Browsers downloaded as binaries could - use non-standard headers to give out any information they can - have access to: see the manufacturer's license agreement. It's - impossible to anticipate and prevent every breach of privacy - that might occur. The professionally paranoid prefer browsers - available as source code, because anticipating their behavior - is easier.

- -

Why should I trust my ISP or - Junkbusters with my browsing data?

- -

You shouldn't have to trust us, and you certainly don't have - to. We do not run the proxy as a service, where we could - observe your online behavior. We provide source code so that - everyone can see that the proxy isn't doing anything - sneaky.

- -

You are already trusting your ISP not to - look at an awful lot of information on what you do. They - probably post a privacy policy on their site to reassure you. - If they run a proxy for you, using it could actually make it - slightly easier for them to monitor you, but we doubt that any - sane ISP would try this, because if it were discovered - customers would desert them.

- -

Can the proxy be used for logging - who looks at what?

- -

We don't want institutions to use this software as an - instrument of surveillance. We have deliberately not provided - options to add timestamps or records of which IP addresses - accessed which URLs. However, because we publish source code - anyone can modify it to do such things, and there is no way a - remote user can find out if this is happening. Again, you need - to be able to trust the entity providing your proxy service, - but you were probably in that position even before using a - proxy.

- -

What private information from - server-bound headers is removed?

- -

The Internet Junkbuster pounces on the following HTTP - headers in requests to servers, unless instructed otherwise in - the options.

- -

The FROM header, which a - few browsers use to tell your email address to servers, is - dropped unless the from option - is set.
The USER_AGENT header is changed to indicate that the browser is - currently Mozilla (Netscape) 3.01 Gold with an unremarkable - Macintosh configuration. Misidentification helps resist - certain attacks. If your browser and hardware happen to be - accurately identified, you might want to change the default. - (Earlier versions of the Internet Junkbuster indicated - different details; by altering them periodically we aim to - hinder anyone trying to infer whether our proxy is present.) - If you don't like the idea of incorrectly - identifying your computer as a Mac, set it accordingly. -
The REFERER header - (which indicates where the URL currently being requested was - found) is dropped. A single static referer to replace all - real referers may be specified using the referer option. Where no referer is - provided by the browser, none is added; the add-header option with arguments - such as -x 'Referer: http://me.me.me' can be - used to send a bogus referer with every request.

- -

In Version 1.4 and later you can use the -r @ option to selectively disclose - REFERER and USER_AGENT to only those - sites you nominate.

- -

Some browsers send Referer and User-Agent - information under different non-standard headers. The Internet - Junkbuster 2.0.2 stops UA headers, but others may - get through. This information is also available via JavaScript, - so disable it. Some search engines - encode the query you typed in the URL that goes to advertisers - to target a banner ad at you, so you will need to block the ad - as well as the referer header, unless you want them (and anyone - they might buy data from) to know everything you ever search - for.

- -

If you have JavaScript enabled (the - default on most browsers) servers can use it to obtain Referer - and User Agent, as well as your plug-ins. We recommend - disabling JavaScript and Java.

- -

Currently no HTTP response headers - (browser bound) are removed, not even the - Forwarded: or X-Forwarded-For: headers. Nor - are any added, unless requested. - We are considering a more flexible header management system for - a future version.

- -

Might some things break because - header information is changed?

- -

Possibly. If used with a browser less advanced than Netscape - 3.0 or IE-3, indicating an advanced browser may encourage pages - containing extensions that confuse your browser. If this - becomes a problem upgrade your browser or use the user-agent option to indicate an - older browser. In Version 1.4 and later you can selectively - reveal your real browser to only those sites you nominate.

- -

Because different browsers use - different encodings of Russian and Czech characters, certain - web servers convert pages on-the-fly according to the User - Agent header. Giving a User Agent with the wrong operating - system or browser manufacturer causes some sites in these - languages to be garbled; Surfers to Eastern European sites - should change it to something - closer.

- -

Some page access counters work by - looking at the referer; they may fail or break when - deprived.

- -

Some sites depend on getting a referer - header, such as uclick.com, which serves comic - strips for many newspaper sites, including - Doonsbury for the Washington Post. (If you - click on that last link, you can then get to a page containing - the strip via the same URL we've linked to under - Doonsbury, but if you click on the - Doonsbury link directly, it gives you an error message - suggesting that you use a browser that supports referers.) In - Version 1.4 and later you can use the -r @ option and place a line like - >uclick.com in your cookiefile. Wired News used to - use referer to decide whether to add a navigation column to the - page, but they have changed that.

- -

The weather maps of Intellicast - have been blocked by their server when no referer or cookie is - provided. You can use the same countermeasure with a line such - as >208.194.150.32 (or simply get your weather - information elsewhere).

- -

Some software vendors, including - Download.com and Intuit use USER_AGENT to decide - which versions of their products to display to you. With the - default you get Mac versions.

- -

As a last resort if a site you need - doesn't seem to be working, the proxy configuration of many - browsers allow you to specify No Proxy For - any hostname you want.

- -

We had reports that on some versions of - Netscape the What's New feature did not work with the proxy, - but we think we fixed this in Version 2.0.1.

- -

How is misidentifying my - browser good for security and privacy?

- -

Almost every major release of both leading browsers has - contained bugs that allow malicious servers to compromise your - privacy and security. Known bugs are quickly fixed, but - millions of copies of the affected software remain out there, - and yours is probably one of them. The header that normally - identifies your browser tells such servers exactly which - attacks to use against you. By misidentifying your browser you - reduce the likelihood that they will be able to mount a - successful attack.

- -

Does the Internet Junkbuster - conceal my IP address?

- -

Web sites get the IP address of any proxy or browser they - serve pages to. If you run the proxy on your own computer the - IP address disclosed is the same as your browser would, unless - you use the forwardfile - option is used to chain to another proxy, in which case servers - only get the last IP address in the chain. Chaining slightly - slows browsing of course, but it improves anonymity.

- -

Does the Internet Junkbuster - thwart identification by identd?

- -

We think so, provided you are not the user running the - proxy. If your computer (or your ISP's) is running the - identd demon, servers can ask it for the identity of the - user making the request at time you request a page from them. - But if you're going through a proxy, they will identify the - user name associated with the proxy, not you. A visit to - http://ident.junkbusters.com lets you see what's happening. - This test is (quite rightly) blocked by many firewalls; just - interrupt the transfer if you get an abnormal wait after - clicking. Running other applications may also expose you via - identd; the proxy of course doesn't help then.

- -

Can web sites tell that I'm using - the Internet Junkbuster?

- -

With the default options the proxy doesn't announce itself. - Obvious indications such as Keep-Alive headers are deleted, but sites might notice that you - can cancel cookies faster than any human could possibly click - on a mouse. (If you want to provide a plausible explanation for - this, change the User Agent header to a cookie-free or - cookie-crunching browser).

- -

But when certain options are used they - could figure out something's going on, even if they're not - pushing cookies. If you use blocking they can tell from their - logs that the graphics in their pages are not being requested - selectively. The - add-forwarded-header option explicitly announces to the - server that a proxy is present, and sending them wafers is of - course a dead giveaway.

- -

Security

- -

What happens with Secure - Documents (SSL, https:)?

- -

If you enter a ``Secure Document Area,'' cookies and other - header information such as User Agent and Referer are sent - encrypted, so they cannot be filtered. We recommend getting - your browser to alert you when this happens. (On Netscape: Options; Security; General; Show an alert before entering a - secure document space.) We also recommend adding the line - :443 to the blockfile to stop all but sites - specified in an exception after that line from using SSL.

- -

It may be possible to filter encrypted - cookies by combining the blocking proxy with a cryptographic - proxy along the lines of SafePassage, but we have not tried - this.

- -

Will using this as my Security - Proxy compromise security?

- -

We're not security experts, but we don't think so. The whole - point of SSL is that the contents of messages are - - encrypted by the time they leave the browser and the server. - Eavesdroppers (including proxies) can see where your messages - are going whether you are running a proxy or not, but they only - get to see the contents after they have been encrypted.

- -

Can I restrict use of the proxy - to a set of nominated IP addresses?

- -

Yes, we added an access - control file in Version 2.0. But before you use it please - consider why you want to do it. If the reason is security, it - probably means you need a firewall.

- -

The listen-address option provides - a way of binding the proxy to a single IP address/port. The - right way to do this is to choose a port inside your firewall, - and deny access to it to those outside the firewall. The - Internet Junkbuster is not a firewall proxy; it should not be - expected to solve security problems.

- -

For background information on - firewalls, see Yahoo or a magazine article or these well-known - books: Firewalls and Internet Security: Repelling the - Wily Hacker by William R. Cheswick and Steven M. - Bellovin or Building Internet Firewalls by D. - Brent Chapman and Elizabeth D. Zwicky. There's - - free Linux software available, and a large number of commercial - products and services. For an excellent security overview, - primer, and compendium reference, see Practical Unix and - Internet Security by Simson Garfinkel and Gene - Spafford.

- -

Are there any security risks for - ISPs or others who offer the proxy?

- -

Yes. As with any service offered over the Internet, hackers - can try to misuse it. A well-run ISP will have professionals - who are experienced at assessing and containing these - risks.

- -

It's possible to set up your machine - so that other people can have access to your proxy, but if you - lack expertise in computer security you probably shouldn't have - your computer configured to offer this or any other service to - the outside world.

- -

Hackers can attempt to gain access to - the machine by various attacks, which we have tried to guard - against but don't guarantee to thwart. They can also use the - ``anonymizing'' quality of proxies to try to cover their tracks - while hacking other computers. For this reason we recommend - preventing it being used as an anonymous telnet by - putting the pattern :23 in the blockfile (it's - included as standard equipment). (Actually the current - implementation incidentally blocks telnet due to the way - headers are handled, but it's best not to rely on this.) If you - wish to block all ports except the default HTTP port 80, you - can put the lines
- :
- ~:80
- at the beginning of the blockfile, but be aware that some - servers run on non-default ports (e.g. 8080). You might also - want to add the line ~:443 to allow SSL.

- -

On UNIX ® systems it is neither - necessary nor desirable for the proxy to run as root.

- -

Versions 2.0.1 and below may be - vulnerable to remote exploitation of a memory buffer bug; for - security reasons all users are encouraged to upgrade.

- -

If you find any security holes in the - code please tell us, along with any suggestions you may have - for fixing it. However, we do not claim that we will be able to - do so.

- -

We distribute this code in the hope - that people will find it useful, but we provide no warranty for - it, and we are not responsible for anyone's use or misuse of - it.

- -

You may also want to check back - periodically for updated versions of the code. We do not - currently maintain a mailing list. To get quick updates, - bookmark our Distribution Information page.

- -

- Website · - Manual · FAQ · GPL

- -

- http://sourceforge.net/projects/ijbswa/

- - - diff --git a/doc/obsolete/ijbman.html b/doc/obsolete/ijbman.html deleted file mode 100644 index 8329e572..00000000 --- a/doc/obsolete/ijbman.html +++ /dev/null @@ -1,708 +0,0 @@ - - - - - - Internet Junkbuster Technical Information - - - - - - -

- Website · Manual · FAQ · GPL

- -

Internet - JUNKBUSTER - Technical Information

- -

- Options · - Checking Options · Installation · Copyright · (FAQ)

- -

This document is out of date

- -

Manual Page

- -

A copy of this page in standard man macro - format is included in the tar - archive.

- -

Name

- -

junkbuster - The Internet Junkbuster - Proxy - ^TM

- -

Synopsis

- -

junkbuster configfile (Unix)
- junkbstr.exe [configfile] - (Windows)

- -

Description

- -

junkbuster is an instrumentable proxy - that filters the HTTP stream between web servers and browsers. - Its main purposes are to block adverts and enhance privacy.

- -

It is configured using a configuration - file and several files listing URL patterns. The - configuration file must be specified on the command line. - The Windows version will default to using the configuration - file junkbstr.ini if it exists and no argument was - given.

- -

All files except the main configuration - file are checked for changes before each page is fetched, so - they may edited without restarting the proxy.

- -

Options

- -

blockfile - blockfile

Block requests to - URLs matching any pattern given in the lines of the - blockfile. The junkbuster instead - returns status 202, indicating that the request has been - accepted (though not completed), and a message identifying itself (though - the browser may display only a broken image icon). - The syntax of a pattern is - [domain][:port][/path] (the http:// or - https:// protocol part is omitted). To decide - if a pattern matches a target, the domains are compared - first, then the paths.

- -

To compare the domains, the - pattern domain and the target domain specified in the URL - are each broken into their components. (Components are - separated by the . (period) character.) Next - each of the target components is compared with the - corresponding pattern component: last with last, - next-to-last with next-to-last, and so on. (This is called - right-anchored matching.) If all of the - pattern components find their match in the target, then the - domains are considered a match. Case is irrelevant when - comparing domain components.

- -

A successfully matching pattern - can be an anchored substring of a target, but not vice - versa. Thus if a pattern doesn't specify a domain, it - matches all domains. Furthermore, - when comparing two components, the components must either - match in their entirety or up to a wildcard * - (star character) in the pattern. The wildcard feature - implements only a "prefix" match capability ("abc*" vs. - "abcdefg"), not suffix matching ("*efg" vs. "abcdefg") or - infix matching ("abc*efg" vs. "abcdefg"). The feature is - restricted to the domain component; it is unrelated to the - optional regular expression feature in the path (described below).

- -

If a numeric port is specified in - the pattern domain, then the target port must match as - well. The default port in a target is port 80.

- -

If the domain and port match, then - the target URL path is checked for a match against the path - in the pattern. Paths are compared with a simple - case-sensitive left-anchored substring comparison. Once - again, the pattern can be an anchored substring of the - target, but not vice versa. A path of / - (slash) would match all paths. Wildcards are not considered - in path comparisons.

- -

For example, the target URL
-     - the.yellow-brick-road.com/TinMan/has_no_brain
- would be matched (and blocked) by the following - patterns
-     yellow-brick-road.com
- and
-    Yellow*.COM
- and
-    /TinM
- but not
-     - follow.the.yellow-brick-road.com
- or
-    /tinman
-

- -

Comments in a blockfile start - with a # (hash) character and end at a new - line. Blank lines are also ignored.

- -

Lines beginning with a - ~ (tilde) character are taken to be exceptions: a URL blocked by - previous patterns that matches the rest of the line is let - through. (The last match wins.)

- -

Patterns may contain POSIX regular expressions provided the - junkbuster was compiled with this - option (the default in Version 2.0 on). The idiom - /*.*/ad can then be used to match any URL containing - /ad (such as - http://nomatterwhere.com/images/advert/g3487.gif for - example). These expressions don't - work in the domain part.

- -

In version 1.3 and later the - blockfile and cookiefile are checked for changes before - each request.

wafer - NAME=VALUE

Specifies a pair to be sent as a cookie with every - request to the server. - (Such boring cookies are called wafers.) This option - may be called more than once to generate multiple wafers. - The original Netscape specification prohibited semi-colons, - commas and white space; these characters will be - URL-encoded if used in wafers. - - - The Path and Domain attributes are not currently - supported.

cookiefile - cookiefile

Enforce the cookie management policy specified in the - cookiefile. If this option is not - used all cookies are silently crunched, so that users who - never want cookies aren't bothered by browsers asking - whether each cookie should be accepted. However, cookies - can still get - through via - JavaScript and SSL, so alerts should be left on.

- -

In Version 1.2 and later this - option must be followed by a - filename containing instructions on which sites are - allowed to receive and set cookies. By - default cookies are dropped in both the browser's request - and the server's response, unless the URL requested matches - an entry in the cookiefile. The matching algorithm - is the same as for the blockfile. A leading - > character allows server-bound cookies only; a - < allows only browser-bound cookies; a - ~ character stops cookies in both directions. Thus a - cookiefile containing a single line with the two characters - >* will pass on all cookies to servers but - not give any new ones to the browser.

jarfile - jarfile

All Set-cookie attempts by the server are logged to jarfile. If no wafer - is specified, one containing a canned notice (the vanilla - wafer) is added as an alert to the server unless the suppress-vanilla-wafer - option is invoked.

suppress-vanilla-wafer

Suppress the vanilla wafer.

from from

If the browser discloses an - email address in the FROM header (most - don't), replace it with from. If from is set - to . (the period character) the FROM is - passed to the server unchanged. The default is to delete - the FROM header.

referer - referer

Whenever the browser discloses the URL that led to the current request, - replace it with referer. If referer is set to - . (period) the URL is passed to the server - unchanged. If referer is set to @ (at) the URL is - sent in cases where the cookiefile specifies that a cookie - would be sent. (No way to send bogus referers selectively - is provided.) The default is to delete Referer.

- -

Junkbuster also accepts the - spelling referrer, which most dictionaries - consider correct.

user-agent - user-agent

Information disclosed by the browser about itself is replaced with the - value user-agent. If user-agent is set to - . (period) the User-Agent header is passed - to the server unchanged, along with any UA - headers produced by MS-IE (which would otherwise be - deleted). If user-agent is set to @ (at) - these headers are sent unchanged in cases where the - cookiefile specifies that a cookie would be sent, otherwise - only default User-Agent header is sent. That - default is Mozilla/3.0 (Netscape) with an unremarkable Macintosh configuration. If - used with a browser less advanced than Mozilla/3.0 or IE-3, - the default may encourage pages containing extensions that - confuse the browser.

listen-address - [host][:port]

If host is specified, bind the - junkbuster to that IP address. If a port - is specified, use it. The default port is 8000; the default - host is localhost.

- -

This default host setting means that you can only - connect to the proxy from ther local computer. This is a - security measure - if you allow anyone to use the proxy, - then hackers or fraudsters could use it to help hide their - identity. It also provides a lot of protection against any - undiscovered security flaws in JunkBuster - if they can't - connect to it, then they can't attack it.

- -

If you change this value, we recommend you either - set the host to localhost:
-    listen-address - localhost:8080
- or, if you want to share a single internet - connection over your internal network, then set it to the - address of your internal ethernet card:
-    listen-address - 10.1.1.1:8080
- (replace 10.1.1.1 with your internal IP address), - or set up an aclfile. To - make the proxy accessible from everywhere (e.g. if you're - using an access control list or if you just don't care - about security), specify just the port number - e.g:
-    listen-address :8000
- (This binds the proxy to all IP addresses - (INADDR_ANY)).

forwardfile - forwardfile

Junkbuster has a flexible syntax for forwarding HTTP - requests. This is used e.g. if you are behind a firewall - and need to connect through it, or if you want to use a - cacheing proxy to speed up your web browsing.

- -

Every line in the forwardfile consists of four - components, seperated by whitespace. These are:
-
- target forward_to via_gateway_type - gateway

- -

target is a pattern used to select which line of - the forwardfile is used. "*" is the most - commonly used value, and matches every URL. As usual, the - last matching target wins. (If no pattern matches, a - direct connection will be used)

- -

forward_to specifies the HTTP proxy server to - use, or "." for none. This is used to connect - to a cacheing proxy such as Squid, and for most types of - firewall. The port number defaults to 8000 if it is not - specified.

- -

Here is a typical line.

-*         lpwa.com:8000      .      .
-

- -

The target domain need not be a fully qualified - hostname; it can be a general domain such as - com or co.uk or even just a port - number. For example, because LPWA does not handle SSL, the line above will - typically be followed by a line such as

-:443    .      .      .
-

- -

to allow SSL transactions to proceed directly. The - cautious would also add an entry in their blockfile to stop - transactions to port 443 for all but specified trusted - sites.

- -

Configure with care: no loop - detection is performed. When setting up chains of proxies - that might loop back, try adding - Squid.

- -

via_gateway_type and gateway are used to - support SOCKS proxies. Some firewalls provide this type of - proxy. If you do not not want to use a SOCKS proxy, specify - both of these fields as ".".

- -

Note that - JunkBuster is a SOCKS client, not a SOCKS - server. The user's browser should not be configured to use - SOCKS; the proxy conducts the negotiations, not the - browser.

- -

The SOCKS4 protocol may be specified by - setting via_gateway_type to socks or - socks4. The SOCKS4A protocol is - specified as socks4a. The SOCKS5 - protocol is not currently supported.

- -

gateway should be the host and port of the SOCKS - server. If you just specify a hostname, then the port - number defaults to 1080.

- -

The user identification capabilities of - SOCKS4 are deliberately not used; the user is always - identified to the SOCKS server as - userid=anonymous. If the server's policy is to - reject requests from anonymous, the proxy will - not work. Use a debug value of 3 to see - the status returned by the server.

- -

If you specify both a HTTP proxy (with - forward_to) and a SOCKS proxy (with gateway) - then the SOCKS proxy is used to connect to the HTTP proxy. - If you just specify a SOCKS proxy, it is used to connect - directly to the websites.

debug N

Set debug mode. The most common value is 1, to pinpoint offensive URLs, so they - can be added to the blockfile. The value of N is a - bitwise logical-OR of the following values:
- 1 = URLs (show each URL requested by the browser);
- 2 = Connections (show each connection to or from the - proxy);
- 4 = I/O (log I/O errors);
- 8 = Headers (as each header is scanned, show the header - and what is done to it);
- 16 = Log everything (including debugging traces and the - contents of the pages).
- 32 = Record accesses in Common Log Format, as used by most - web and proxy servers.

- -

Multiple debug lines are - permitted; they are logical OR-ed together.

- -

Because most browsers send several - requests in parallel the debugging output may appear - intermingled, so the - single-threaded option is recommended when using debug with N greater than 1. -

add-forwarded-header

Add X-Forwarded-For headers to the - server-bound HTTP stream indicating the client IP address - to the server, in the new - style of Squid 1.1.4. If you want the - traditional HTTP_FORWARDED response header, - add it manually with the -x option. This - also allows other X-Forwarded-For headers to - be transmitted - usually they are discarded.

add-header - HeaderText

Add the HeaderText verbatim to requests to the - server. Typical uses include adding old-style forwarding - notices such as Forwarded: by - http://pro-privacy-isp.net and reinstating the - Proxy-Connection: Keep-Alive header (which the - junkbuster deletes so as not to reveal its existence). No - checking is done for correctness or plausibility, so it can - be used to throw any old trash into the server-bound HTTP - stream. Please don't litter. -

single-threaded

Doesn't fork() a separate process (or - create a separate thread) to handle each connection. Useful - when debugging to keep the process single threaded.

logfile - logfile

Write all debugging data into logfile. The - default logfile is the standard output.

- aclfile - aclfile

Unless this option is used, the proxy talks to anyone - who can connect to it, and everyone who can has equal - permissions on where they can go. An access file allows - restrictions to be placed on these two policies, by - distinguishing some source IP addresses - and/or some destination addresses. (If a - forwarder or a gateway is being - used, its address is considered the destination address, - not the ultimate IP address of the URL requested.)

- -

Each line of the access file begins - with either the word permit or - deny followed by source and (optionally) destination - addresses to be matched against those of the HTTP request. - The last matching line specifies the result: if it was a - deny line or if no line matched, the request - will be refused.

- -

A source or destination can be - specified as a single numeric IP address, or with a - hostname, provided that the host's name can be resolved to - a numeric address: this cannot be used to block all - .mil domains for example, because there is no single - address associated with that domain name. Either form may - be followed by a slash and an integer N, - specifying a subnet mask of N bits. For - example, permit 207.153.200.72/24 matches the - entire Class-C subnet from 207.153.200.0 through - 207.153.200.255. (A netmask of 255.255.255.0 corresponds to - 24 bits of ones in the netmask, as with - *_MASKLEN=24.) A value of 16 would be used for a - Class-B subnet. A value of zero for N in the - subnet mask length will cause any address to match; this - can be used to express a default rule. For more information - see the example file provided with the distribution.

- -

If you like these access controls - you should probably have - firewall; they are not intended to replace one.

- trustfile - trustfile

This feature is experimental, has not been fully - documented and is very subject to change. The goal is for - parents to be able to choose a page or site whose links - they regard suitable for their young children and for the proxy - to allow access only to sites mentioned there. To do this - the proxy examines the referer variable - on each page request to check they resulted from a click on - the ``trusted referer'' site: if so the referred site is - added to a list of trusted sites, so that the child can - then move around that site. There are several uncertainties - in this scheme that experience may be able to iron out; - check back in the months ahead.

- - trust_info_url - trust_info_url

When access is denied due to lack of a trusted referer, - this URL is displayed with a message pointing the user to - it for further information.

- hide-console

In the Windows command-line version only, instructs the - program to disconnect from and hide the command console - after starting.

- -

Installation and Use

- -

Browsers must be told where to find the - junkbuster (e.g. localhost port 8000). - To set the HTTP proxy in Netscape 3.0, go through: Options; Network Preferences; Proxies; Manual Proxy - Configuration; View. See the FAQ for other browsers. The Security Proxy should also be set to - the same values, otherwise shttp: URLs won't - work.

- -

Note the limitations explained in - the FAQ.

- -

Checking Options

- -

To allow users to check that - a junkbuster is running and how it is - configured, it intercepts requests for any URL ending in - /show-proxy-args and blocks it, returning instead - returns information on its version number and current - configuration including the contents of its blockfile. To get - an explicit warning that no junkbuster - intervened if the proxy was not configured, it's best to point - it to a URL that does this, such as - http://internet.junkbuster.com/cgi-bin/show-proxy-args on - Junkbusters's website.

- -

Copyright and GPL

- -

Written and copyright by the Anonymous Coders and - Junkbusters Corporation and made available under the GNU General Public License (GPL). This software - comes with NO WARRANTY. Internet - Junkbuster Proxy is a - trademark of Junkbusters Corporation.

- -

- Website · Manual · FAQ · GPL

- -

- http://sourceforge.net/projects/ijbswa/

- - - diff --git a/doc/obsolete/top.gif b/doc/obsolete/top.gif deleted file mode 100755 index 8380083d..00000000 Binary files a/doc/obsolete/top.gif and /dev/null differ

Internet - JUNKBUSTER - Frequently Asked Questions

This document is out of date

The Top Ten Questions

What is the Internet Junkbuster - Proxy and what does it do for me?

Is there a license fee / warranty - / registration form / expiration?

Does it run on Windows? On a Mac? - On the AOL browser?

How can I get my ISP to run the - Internet Junkbuster?

Who chooses the options that - control what is blocked?

How do I download and run the - program on my computer?

How can I tell which blockfile - and options are being used?

My browser started giving me - ``server not responding'' messages

I've got this great idea for a - new feature. Who do I tell?

My question isn't listed here. - Who do I ask for support?

Configuring your browser to talk to - the Internet Junkbuster

What is the proxy address of the - Internet Junkbuster?

How do I tell the browser where - to find the Internet Junkbuster?

What should I do if I find - another proxy is already configured?

What if I want to stop using - the Internet Junkbuster?

Automatic dialing isn't working - any more. How do I fix it?

Setting up the Internet Junkbuster on - your local computer

How do I compile the code under - Unix?

How do I compile the code under - Windows?

How do I check that the proxy is - working?

How and why would I have this - proxy chained with other proxies?

How does the Internet Junkbuster - work with SOCKS gateways?

How do I configure it to be just - a plain old proxy?

How do I shut down the proxy (to - restart it)?

Information for companies

What do advertising companies - think of this kind of technology?

Should we provide the - Internet Junkbuster for our employees?

Can our company get - commercial support for the software?

I run an ISP. What issues should - I consider before offering it?

Blocking

Where can I get an example - blockfile that stops most ads?

If I see an ad I wish I hadn't, - how do I stop it?

How come this ad is still getting - through anyway?

How do I stop it blocking a - URL that I actually want?

Can I block sites I don't want my - children to see?

What do I see when a page or - graphic is blocked by the proxy?

Why not replace blocked banners - with something invisible?

Why not block banners based on - the dimensions of the image?

What about non-graphic - advertising within the pages I want?

Does it block ads on the - broadcasting ``push'' systems? How about pop-up ads?

Cookies

Might some cookies still - get through? How can I stop them?

Exactly how do cookies get - created and stored anyway?

If cookies can't get through, - will some things stop working for me?

Can I control cookies on a - per-site basis?

Can I make up my own fake cookies - (wafers) to feed to servers?

Why would anyone want to save - their cookies in a ``cookie jar?''

Anonymity

If I use the Internet Junkbuster, - will my anonymity be guaranteed?

Why should I trust my ISP or - Junkbusters with my browsing data?

Can the proxy be used for logging - who looks at what?

What private information from - server-bound headers is removed?

Might some things break because - header information is changed?

How is misidentifying my - browser good for security and privacy?

Does the Internet Junkbuster - conceal my IP address?

Does the Internet Junkbuster - thwart identification by identd?

Can web sites tell that I'm using - the Internet Junkbuster?

Security

What happens with Secure - Documents (SSL, https:)?

Will using this as my Security - Proxy compromise security?

Can I restrict use of the proxy - to a set of nominated IP addresses?

Are there any security risks for - ISPs or others who offer the proxy?

Internet - JUNKBUSTER - Technical Information

This document is out of date

Manual Page

Name

Synopsis

Description

Options

Installation and Use

Checking Options

See Also

Copyright and GPL