bypassing blocks

mitchamafied · 09-26-2006, 12:33 PM

yes this is highly talked about. but from what i hear the best way to get around a block (for me websense) is to use a proxy. unfortunatly all of the common proxies are already blocked. i heard that if you have your own proxy that just you use they cant find it and block it. so i just want suggestions on either another way to bypass, how to set up a proxy, or if somebody could make me a proxy. of course i dont know if it takes much to make one or not but just my ideas.
Thanks.

Will.Spencer · 09-27-2006, 12:43 PM

To setup your own proxy, just install something like CGIProxy or PHPProxy on your own computer or on a hosting account somewhere.

mitchamafied · 10-02-2006, 12:41 PM

so set it up on my own computer. and i can use it from wherei need it. ill have to check that out for sure. thanks.

darviria · 10-09-2006, 11:53 AM

Or use ssh tunnelling

The way that you get around restrictions is to run whatever you want to run, ie a webpage on another computer where there are no restrictions and then pass it back to you.

Personally I'd never use public proxies anyway, they're slow and annoying, I just have my home pc setup to do what I need, I can even use Screen to be able to come back to running programs remotely via ssh, I have irssi running so I can use irc from wherever I am and keep it connected, no need to mess around with proxies, connecting and disconnecting or anything, I can also do anything else like email or bittorrent remotely, it's all command line of course but I don't use a GUI in linux anyway, that's what windows is for.

If you wanted to and know what you're doing with linux you could even setup your own proxy on a virtual machine or just have it for ssh access, you can get free copies of VMWare and MS Virtual PC now I think, just set them up as a virtual network machine and install Linux on it, then just boot it up whenever you go out.

mitchamafied · 10-10-2006, 12:36 PM

i dont get how my home computer could pass it back to me. what would it take to do that?

Will.Spencer · 10-10-2006, 05:17 PM

Let's say that you have two PC, one at school and one at home.

Let's also say that your PC at school is behind a WebSense content filtering proxy.

On your home PC, install your own proxy server.

On your school PC, start your web browser and point it to the proxy server on your home PC.

Now, let's look at the URL flow.

WebSense sees that you are connecting to your home PC. WebSense sees that and thinks "That's OK, that URL is not on my blocked list.

Your home PC, on the other hand, is browsing MySpace.com, FortLiberty.org, or whatever other "banned" site you want to browse.

Buy WebSense doesn't see that. It only sees the connection to your home PC.

gwen · 10-12-2006, 01:47 PM

Quote:

Originally Posted by Will.Spencer

On your school PC, start your web browser and point it to the proxy server on your home PC.

I have problems with this step. My company work computer (the one with websense) uses a automatic configuration script to point the browser to use my company's own proxy server. How can I bypass this? If I change the path of the browser proxy within IE settings, by unchecking "use automatic configuration script" and putting a check in the box "to use a proxy server for a lan" and point it to my home computer using the ip and port, a) will this even work and b)could my company track this or know I was doing it? This is not an open computer I am part of a domain network.

Will.Spencer · 10-12-2006, 04:14 PM

Ahh... I was not clear. When I say "start your web browser and point it to the proxy server on your home PC", I mean "start your web browser and enter the IP address of your home PC which is running the web proxy software in the address bar of your web browser like this: http://66.165.
235.73. I did not mean to enter your home PC's IP address as in the proxy configuration. Browse the the web server on your home PC just as you would browse to any other web server.

Quote:

Originally Posted by gwen

My company work computer (the one with websense) uses a automatic configuration script to point the browser to use my company's own proxy server. How can I bypass this?

Sometimes you can bypass the proxy and go direct to the Internet. However, most network engineers who set up a proxy also block all traffic that does not go through that proxy.

darviria · 10-12-2006, 08:32 PM

If you run something like a PHP web proxy then you simply pass a url to a script so it would look something like this:

Code:

http://www.yourdomain.com/proxy/index.php?url=http://www.somedodgysite.com

Or it might even have an index page with a dialogue box to just enter the url into

gwen · 10-16-2006, 09:51 AM

Quote:

Originally Posted by Will.Spencer

To setup your own proxy, just install something like CGIProxy or PHPProxy on your own computer or on a hosting account somewhere.

Ok I tried to install both of these on my computer. PHP seems to have better documentation (plus an included index page) however I cannot figure out how to install either of these on my home PC. Is there any dummies guide to installing these? I checked both of the websites of each and the installation instructions are very vague. Thanks in advance.

Will.Spencer · 10-16-2006, 11:03 AM

Quote:

Originally Posted by gwen

Is there any dummies guide to installing these? I checked both of the websites of each and the installation instructions are very vague.

There is not, but there probably should be. Setting these up is a fairly complex task, because it requires setting up a web server that is reachable from the public Internet.

Let me think about that for a bit... creating that document would be quite a bit of work also.

gwen · 10-19-2006, 10:39 AM

Ok I installed a home web server using the instructions on the following link:

http://www.lifehacker.com/software/d...ver-124212.php

Now I have Apache 2.2 installed on my home computer and it is running. Now I need to know how to install one of the proxies on it, such as PHP Proxy.

Will.Spencer · 10-19-2006, 04:12 PM

If you got Apache running, setting up a the proxy should be a piece of cake for you!

All I had to do to setup CGIProxy was to put the file in the right directory.

Of course, I already had PERL installed.

CGIProxy requires PERL and PHPProxy (obviously) requires PHP.

Do you have a public IP address on that computer?