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- 0.0 Intro
- 1.0 What is a proxy server
- 1.1 Why use one
- 1.2 How to find one
- 1.3 How to configure one in your browser
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- 0.0 Intro
-
- Well, finally I decided to take 15 minutes out of my life and write a paper
- on proxy servers. I have answered tons of mail,posts etc on how to hide your
- IP while exploring the Internet . So here it is... some BASIC info on proxies......
-
- -----------------------------------------------------------------------------
- 1.0 What is a proxy server
-
- Proxy Server is a firewall and cache server. It allows and entire network of
- computers to access the internet(http or ftp)with a single IP. Let's say we
- have 3 computers in some small network in Malaysia going through a proxy
- server:
-
- 1 -> 2 -> 3 -> PROXY SERVER -> THE WEB SITE
-
- Now assume you are at home with an Internet access through your ISP, this is
- what your connection looks like :
-
- Your PC -> Your ISP -> THE WEB SITE
-
- Ok, now.... If the proxy server in the network above allows other users to go
- through it we can to this :
-
- 1 -> 2 -> 3 -> PROXY SERVER -> THE WEB SITE
- |
- |
- Your PC -> Your ISP
-
- As you can see in the above diagram we can go through that proxy server and
- hide our real IP ! "THE WEB SITE" will only see the proxies IP of the network
- you are going through..
-
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- 1.1 Why use one
-
- That was mentioned before, to hide your REAL IP. But, some of the proxies can
- give out/forward your real IP to the site you are connecting to and do infact
- log their users.Hmmm, well there is a problem that was discovered while
- attempting a phf exploit on a site. As it turns out, proxy servers with the
- Squid Cache forward you real IP upon a request, but to my knowledge some do not
- log their users. Here are two sites for testing proxies :
-
- http://www.tamos.com/bin/proxy.cgi
-
- http://kyticr.kuicr.kyoto-u.ac.jp/cgi-bin/phf?Qalias=x%0a/bin/cat%20/etc/passwd
-
- If you see your IP in any of the two URL's -> your proxy sucks, get a new one.
-
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- 1.2 How to find one
-
- Ez way : Visit wwwboard related to hacking/cracking/warez/phreaking and
- look at the IP's of the parties that post there and write them
- down. (many of them will spoof their IP)
-
- Ez way2: ask others
-
- Harder : Domain Scan for open ports 8080,3128.
-
- V Hard : ping host.com:8080 or 3128
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- 1.3 How to configure one in your browser
-
- In I.E :
-
- View -> Internet Options -> Connection
-
- Now type in the IP of the proxy and try connecting to it through port
- 8080,80,3128
-
-
- Netscape (from memory):
-
- Preferences -> Network -> Proxy tab
-
- Same as in I.E
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- Any questions/comments/corrections/ -> c1ph3r@hotmail.com
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