From: sustundag@secura.com.tr
Date: Wed Apr 21 2004 - 09:38:06 GMT-3
You cant do this via firewall
Solution1:If you have DMZ interface put Host1 in that interface and block Host2 to access to Host1 (Proxy Server )
Solution 2:Block usage of Host2 in Host1`s proxy configuration so Host2 cant use Host1 as proxy...
Regards
Serkan Ustundag
Network and Security Engineer
CCNP,CCDP,CCSE
CCSP (Cisco Certified Security Professional)
Cisco Network Management Specialist
sustundag@secura.com.tr
Secura bir TEPUM grup sirketidir
-----Original Message-----
From: thunai [mailto:thunai@cisco.com]
Sent: Wednesday, April 21, 2004 2:54 PM
To: ccielab@groupstudy.com
Subject: Filter Proxy server behind firewall
Sensitivity: Private
Dear all ,
Is there any way i can block proxy servers sitting behind
firewall ( Inside ) network. Eg , let say host 1, host 2 are stationed on
the inside interface of Firewall , i am permitting host 1 to access the
internet through Firewall. However host 1 installs a Http proxy and allowing
host 2 to access the Internet. Can you please give your ideas in filtering
the same.
Regds
Thunai
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