Comments on: Blocking pop access over http http://itknowledgeexchange.techtarget.com/itanswers/blocking-pop-access-over-http/ Sat, 25 May 2013 17:28:03 +0000 hourly 1 By: sonyfreek http://itknowledgeexchange.techtarget.com/itanswers/blocking-pop-access-over-http/#comment-36906 sonyfreek Wed, 22 Mar 2006 17:48:22 +0000 #comment-36906 You can do all of these things by using SQUID or an application layer aware firewall. SQUID makes it easy to block not only URLs, IP Addresses, Protocols, and regular expressions (ie: you can block on any specific word from any website, such as the word “network”). In order for it to work, you need all web based traffic to be routed through the proxy server. This can be done via a GPO where you assign the proxy server to IE or Firefox (using Firefox ADM). Then you would restrict all direct connections to the Internet from inside your network. Also sith SQUID, you can prototype any protocol so that things like AIM won’t work by sending it out on port 80,443,21,etc.

SF

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