From: "Venkatesh. K" <venkatesh@cbayscribe.com>
To: netfilter@lists.netfilter.org
Cc: Subramanian Thenralmani <sthenral@yahoo.com>
Subject: Re: transparent squid with iptables masq
Date: Sun, 19 Oct 2003 07:11:29 +0530 [thread overview]
Message-ID: <015201c395e2$2495f220$2800a8c0@karu> (raw)
In-Reply-To: 20031018051051.49925.qmail@web14309.mail.yahoo.com
----- Original Message -----
From: "Subramanian Thenralmani" <sthenral@yahoo.com>
To: <netfilter@lists.netfilter.org>
Sent: Saturday, October 18, 2003 10:40 AM
Subject: transparent squid with iptables masq
> Hi,
>
> I have configured transparent squid on my Linux
> firewall and masqueraded only ftp ports (20 and 21).
> My problem is i wanted to block yahoo messenger
> through squid but after squid rejects yahoo messanger
> is masquerading with ftp ports and going out and
> without masquerading anything yahoo messanger is not
> working. How can I block yahoo messanger with the
> above situation.
Consider using ftp proxy like frox (http://frox.sourceforge.net).
Frox allows you to transparently proxy/cache ftp and it can even use squid
for anonymous ftp requests. This will allow you transparently proxy/cache
ftp. Once you have a proxy for ftp, you can simply remove the masquerading.
Unfortunately, the above solutions works for you only for ftp. Consider
using L7 classifier for application level firewalling.
Venkatesh K
KAEVEE Consulting Services
Banglaore
>
>
> Thanx & Regards
> Mani
>
> =====
> Subramanian ThenralMani
> Manager - Technical
> Yukthi Systems Pvt. Ltd.
> #178, 5th Main, J.P.Nagar 3rd Phase,
> Bangalore-560 074
> Phone #:6582923
> Reach me at:9845211913
>
> __________________________________
> Do you Yahoo!?
> The New Yahoo! Shopping - with improved product search
> http://shopping.yahoo.com
>
>
next prev parent reply other threads:[~2003-10-19 1:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-18 5:10 transparent squid with iptables masq Subramanian Thenralmani
2003-10-19 1:41 ` Venkatesh. K [this message]
2003-10-22 20:55 ` Re[2]: " Peteris Krumins
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