using a squid proxy

sanjay_ankur · #1 30th July 2008, 03:41 PM

hi all,

My college internet connections blocked all torrents.. I can't open a lot of sites (deemed uneducational) and cannot download the fedora isos even from the official torrent site.. Can someone tell me a way to bypass this using squid? I referred to this site..

www.wagerank.com/2007/ how-i-set-up-a-private-anonymous-proxy/

I did till step "Configure squid part 1" since the Part two dint seem relevant for this..

I use it already for these forums on opera so if I could get it to work for me it would really save me a lot of trouble..

whatismyipaddress.com says "Proxy Reports IP as: unknown" but the blocked sites still refuse to open..

regards,

Ankur

oneofmany · #2 30th July 2008, 03:48 PM

colleges block torrents deliberately for a reason. i dont think it is wise to tell you how to circumvent this.

however, you can download the isos without resorting to torrents from the official website

sanjay_ankur · #3 30th July 2008, 05:33 PM

Quote:

Originally Posted by oneofmany

colleges block torrents deliberately for a reason. i dont think it is wise to tell you how to circumvent this.

however, you can download the isos without resorting to torrents from the official website

hi,

What you've said is pretty true.. The torrents are blocked to prevent us from downloading Gbs of files .. However, it is not exactly the torrents that are blocked. Just downloading the torrent file is.. And we can do that using a proxy site like hidemyass.com or any other.. I was just asking if there is a way of doing it using squid.. They have not been able to disable trackers so once we have the .torrent everything works normally.. As for the sites.. they end up blocking normal sites in an attempt to block adult sites etc.. I am not really interested in those.. I have squid that I use for opera and I'd like to learn what it can do etc.. Application if you want to call it..

regards,

Ankur

Nokia · #4 30th July 2008, 06:04 PM

Sanjay, I think you might be missing the point here. As you said, some kind of content-filtering is performed upstream by your ISP/college admin. Setting up Squid is meaningless for upstream. It will only work for your own private network which might have 1 or more computers.

Most likely, if you try downloading from elsewhere a .torrent file via ftp this action should be blocked by upstream filters. Using SSH to copy that file should work because content-filtering cannot be applied to encrypted connections afaik.

The situation described in your link states clearly that there was a remote box involved.

oneofmany · #5 30th July 2008, 06:34 PM

actually, ssh traffic can be filtered, to a degree using packet shaping techniques but the content can't easily be seen, just identified.

sanjay_ankur · #6 31st July 2008, 02:42 AM

Quote:

Originally Posted by Nokia

Sanjay, I think you might be missing the point here. As you said, some kind of content-filtering is performed upstream by your ISP/college admin. Setting up Squid is meaningless for upstream. It will only work for your own private network which might have 1 or more computers.

Most likely, if you try downloading from elsewhere a .torrent file via ftp this action should be blocked by upstream filters. Using SSH to copy that file should work because content-filtering cannot be applied to encrypted connections afaik.

The situation described in your link states clearly that there was a remote box involved.

hi,

That was pretty technical so a few queries..

You say it will only work for my own private network which might have one or more computers. ---- I need it only for one laptop (my personal one..).. Can that be done??

How do you use SSH encryption?? Is there a guide somewhere that I can use to learn that?? Or can any of you tell me how its done?? What are the applications of SSH encryprion.. Where else can it be used I mean...

What does "remote box" imply?

Sorry.. I'm a noob at networking..

regards ,

Ankur

Nokia · #7 31st July 2008, 07:51 AM

Well, simply said, you need a computer that has a different ISP. Putting Squid in your LAN would only affect the single/many computers that are below -hierarchically speaking- your level.

sanjay_ankur · #8 31st July 2008, 09:05 AM

Quote:

Originally Posted by Nokia

Well, simply said, you need a computer that has a different ISP. Putting Squid in your LAN would only affect the single/many computers that are below -hierarchically speaking- your level.

Hi,

We have a wireless networks here.. And I think us students are at the very base (lowest) of the hierachy.. No one below us..

What do you mean by "computer with a different ISP" ??

regards,

Ankur

drokmed · #9 31st July 2008, 04:27 PM

Quote:

Originally Posted by oneofmany

actually, ssh traffic can be filtered, to a degree using packet shaping techniques but the content can't easily be seen, just identified.

I played around with deep packet inspection. Too many false positives, but at least you are alerted to the attempt, which in itself is enough for any diligent admin.

If he keeps trying to bypass, he's gonna get a visit from 'THE MAN'. All attempts to bypass are easily detected, whether the attempt was successful or not.