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Old 01-20-2010, 02:55 AM   #16
Registered: Jul 2008
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Run this in RHEL console:

iptables --list PREROUTING -t nat

and post the result.

Do you have router before RHEL, like Cisco.

Last edited by mkp; 01-20-2010 at 02:58 AM.
Old 01-20-2010, 03:03 AM   #17
Registered: Oct 2008
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I don't have a cisco router.

# iptables --list PREROUTING -t nat
target prot opt source destination
Old 01-20-2010, 03:54 AM   #18
Registered: Jul 2008
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Only for test try to set squid in transparent mode. In this case you need to set this rule in iptables:

iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port xxxx(port in squid.conf)

Also, how many PC are in this network?

And see this to

Last edited by mkp; 01-20-2010 at 04:57 AM.
Old 01-20-2010, 11:46 PM   #19
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Location: Gurgaon, India
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OP does not have issue with squid if I can read the post correctly. This is a common issue faced and this is because squid is not smtp or pop proxy. I have been looking for solution myself and I havent found one suitable. One way is to use p3scan. It is a smtp, pop3 and pop3s proxy which can be made as transparent with netfilter rules. There is a howto as well.


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