[squid-users] googles data compression proxy

Eliezer Croitoru eliezer at ngtech.co.il
Tue Jun 21 07:04:38 UTC 2016


The right way to find what happens is the "on-wire" information.
It will explain how they smuggle the packets either using squid or the firewall.
What is the basic policy of the system gateway and firewall?
Are you blocking any ports other then 80 and 443?


Eliezer Croitoru
Linux System Administrator
Mobile: +972-5-28704261
Email: eliezer at ngtech.co.il

-----Original Message-----
From: squid-users [mailto:squid-users-bounces at lists.squid-cache.org] On Behalf Of reinerotto
Sent: Tuesday, June 21, 2016 4:06 AM
To: squid-users at lists.squid-cache.org
Subject: [squid-users] googles data compression proxy

Any real experience, how to block this feature ? 
Actually, it allows to tunnel thru squid, because of special protocol.
In my logs, I see TCP_DENIED for http://check.googlezip.net/connect, because of my ACL in squid.
However, traffic is still tunneled thru squid to goohles proxy.

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