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OzzY



Joined: 19 Sep 2003
Posts: 1029
Location: Everywhere
OzzY
Hi!
At my university I have a long period of time between one class and another, so I stay at the computer labs to use my time at internet.
The problem is that they block some contents on the internet and don't have msn messenger installed.

Do you know how to bypass the security thing that blocks Web Messengers at schools' browser?
Also I'd like to have access to sites like Orkut (they block it too).

Any ideas?

Thanks!
Post 09 Aug 2006, 13:01
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
it's called tunnelling, usually through proxy servers

ask some |-| /\ ( |< ers how to do it (i mean, networking experts), it should be fairly easy and most of times can be done using just putty or something
Post 09 Aug 2006, 14:51
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MHajduk



Joined: 30 Mar 2006
Posts: 6034
Location: Poland
MHajduk
For tunelling You may use TOR, which creates an enciphered connection by sequence of servers spread around the world.
Privoxy program prevents WWW browsers to say DNS servers what we want to see.

Regards,
M.H.
Post 09 Aug 2006, 15:14
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f0dder



Joined: 19 Feb 2004
Posts: 3170
Location: Denmark
f0dder
How to bypass it depends on what kind of block they do.

#1 blocking only "bad" ports
#2 allowing only "good" ports
#3 stateful protocol inspecting

#1 and #2 are relatively trivial to get around, if you can set up a proxy at some other place (say, a server at home).
Post 09 Aug 2006, 18:45
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OzzY



Joined: 19 Sep 2003
Posts: 1029
Location: Everywhere
OzzY
Actually, they block pages with some words like "msn", "orkut", "sex", and so on...
Post 09 Aug 2006, 19:23
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
you mean pages that have these word in URL, or in body? Because then this thread would be blocked too...
Post 09 Aug 2006, 19:51
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OzzY



Joined: 19 Sep 2003
Posts: 1029
Location: Everywhere
OzzY
In URL. But what I don't understand is that they block even if I use some kind of redirector.
Post 09 Aug 2006, 20:05
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
this can surely be tricked by some crypted tunnell
Post 09 Aug 2006, 20:22
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shoorick



Joined: 25 Feb 2005
Posts: 1605
Location: Ukraine
shoorick
may be buy some beer to sysadmin Wink
Post 09 Aug 2006, 20:29
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
yes, social engineering
Post 09 Aug 2006, 21:24
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Madis731



Joined: 25 Sep 2003
Posts: 2141
Location: Estonia
Madis731
Very Happy IP doesn't have any characters in it except for dot. Try pinging orkut and such and then paste the IP.

But when the ip resolves back to orkut in your browser, then you are **** Razz
Post 10 Aug 2006, 07:12
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OzzY



Joined: 19 Sep 2003
Posts: 1029
Location: Everywhere
OzzY
After looking at this page http://www.rohitab.com/discuss/lofiversion/index.php/t9632.html I got the idea that it is a local proxy filter. Maybe changing some settings in IE will unblock the sites.

Can someone help me with this settings?
Wait here in the lab for the class without a full access internet is very boring.
Post 06 Sep 2006, 12:24
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HyperVista



Joined: 18 Apr 2005
Posts: 691
Location: Virginia, USA
HyperVista
Ozzy - have you checked to see what the hosts (no extension) file says? Your school might be using the hosts file to shunt MSN to local machine. The host file can be used to block access to specific websites, or to redirect to connectivity to other sites.

Depending on the OS version, you will find the hosts file in the windows/system32/drivers/etc folder. you can open it with notepad and edit it as needed. there are some instructions in the file on how to properly change it.

fyi, some pop-up ad blocking software use the hosts file to block ads (or better stated, block access of your machine to pop-up websites).
Post 06 Sep 2006, 13:11
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OzzY



Joined: 19 Sep 2003
Posts: 1029
Location: Everywhere
OzzY
The hosts file is clean, so it's not it.
I think it might be something with content filter from IE.
Post 06 Sep 2006, 13:24
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RedGhost



Joined: 18 May 2005
Posts: 443
Location: BC, Canada
RedGhost
Did you try Tor?

If not maybe subscribe to a VPN service like (findnot.com) with this even all the ISP sees is you connect to the VPN then nothing useful Very Happy

_________________
redghost.ca
Post 06 Sep 2006, 13:40
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OzzY



Joined: 19 Sep 2003
Posts: 1029
Location: Everywhere
OzzY
Still can't get access.
They use Squid here.

I'll try this: http://letwist.net/operator
Post 04 Oct 2006, 12:00
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DataHunter2009



Joined: 10 Jun 2005
Posts: 144
DataHunter2009
Ugh... Squid is what my ISP uses to handle DNS requests. It's been screwing up the last few weeks, so every domain name registered after a certain date won't resolve for me. But, if I turn my satellite internet off and use my secondary dialup connection (which doesn't use squid), then it works great. My ISP doesn't believe me, though. So it still isn't fixed.
Post 04 Oct 2006, 21:17
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f0dder



Joined: 19 Feb 2004
Posts: 3170
Location: Denmark
f0dder
Huh, SQUID does DNS stuff now? I thought it was just a caching proxy.
Post 04 Oct 2006, 22:01
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Ehtyar



Joined: 26 Sep 2006
Posts: 51
Ehtyar
I found that in my case, each institution's internet was routed through a set of proxies located at the department itself, with direct fiber connections to each institution. To overcome the checking, you can get the address of the pac (proxy auto configuration) by right clicking on the IE desktop shortcut and select LAN proxy settings. Visit the link to the pac and find the address of the proxy from it. After you have that, it was as simple as getting another browser (ff or opera etc) and putting the address of the proxy into it. By bypasing the pac and using just the proxy itself, you bypass all the filtering crap, and can use the school's proxy in whatever program you wish.
Hope this helps, Ehtyar.
Post 04 Oct 2006, 22:23
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TmX



Joined: 02 Mar 2006
Posts: 821
Location: Jakarta, Indonesia
TmX
Have you tried Meebo ?
Very Happy
Post 05 Oct 2006, 09:09
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