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RE: N00b Question
From: "Beauford, Jason" <jbeauford () EightInOnePet com>
Date: Thu, 30 Dec 2004 17:18:55 -0500

I believe this can be done with SQUID PROXY [
http://www.squid-cache.org/ ].  Never set it up, but I have looked into.

Can any other list members please verify?

Happy New Year!


-----Original Message-----
From: Idol Crash [mailto:idolcrash () gmail com] 
Sent: Thursday, December 30, 2004 3:46 PM
To: harshal.dedhia () skybird-travel com
Cc: security-basics () securityfocus com
Subject: Re: N00b Question

AFAIK, I think that the only way to block web-based e-mail would be
through a proxy or host file, as to block it through a firewall, one
would have to block port 80, used for all web viewing, which isn't very
practical.  For MSN and Yahoo chat, you'd have to find the ports for
which they are typically used and block them (I don't know them off the
top of my head), and prevent users from installing said applications.

Good luck, and I hope this was helpful.

On Thu, 30 Dec 2004 11:41:51 -0500, Harshal Dedhia
<harshal.dedhia () skybird-travel com> wrote:
I am very new to the firewall and network security world. I have a 
situation wherein  I need to block webbased email access and the 
ability to upload attachments to web-based email. I also need to 
ensure that MSN/yahoo chat is disabled and quotas are established for 
web surfing.

Is there an Open Source solution to this problem. The network 
comprises Cisco Routers and 500 series firewalls.


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