From: bert hubert <ahu@ds9a.nl>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Detecting Request from a proxy server
Date: Tue, 05 Mar 2002 11:32:35 +0000 [thread overview]
Message-ID: <marc-lartc-101532802416280@msgid-missing> (raw)
In-Reply-To: <marc-lartc-101530883105272@msgid-missing>
On Tue, Mar 05, 2002 at 11:40:53AM +0530, Deepak Singhal wrote:
> Hi All,
>
> Can i somehow detect traffic which is coming from a proxy/masquerading
> server in my lan to my linux gateway server.
Up to a point. Proxy servers typically include an 'X-Forwarded-For' header.
With the right iptables tricky (the 'string match') woul would be able to
block such traffic.
Masqueraded traffic can *sometimes* be recognized by the port number, but
not always, and such numbers van be changed.
In my experience it almost never helps to try to enforce your policy
electronically. You may be better of telling people not to use proxy
servers.
Regards,
bert
--
http://www.PowerDNS.com Versatile DNS Software & Services
http://www.tk the dot in .tk
http://lartc.org Linux Advanced Routing & Traffic Control HOWTO
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next prev parent reply other threads:[~2002-03-05 11:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-05 6:22 [LARTC] Detecting Request from a proxy server Deepak Singhal
2002-03-05 11:32 ` bert hubert [this message]
2002-03-05 12:47 ` Milan Pavlovic
2002-03-05 14:12 ` Michael T. Babcock
2002-03-06 14:42 ` Arindam Haldar
2002-03-07 5:48 ` Deepak Singhal
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