RE: email gateway (transparent) - full transparent

arek_at_chelmnet.pl
Date: 11/18/03

  • Next message: Henry, Christopher M.: "RE: Watchguard Firebox firewalls" 
    To: <security-basics@securityfocus.com>
Date: Tue, 18 Nov 2003 13:52:00 +0100

    > http://www.tldp.org/HOWTO/TransparentProxy.html
    > It is a guide on how to setup squid (or any other server listening on a
    > given port) for transparent forced port redirection
    > No need to kernel hack as that great ipchains/iptables/netfilter
    > does it for you!
    > Joy!
    Well :) i'm using with success squid+cisco+other_linuxes_as_redirectors with
    wccp too.

    there is an info from http://www.tldp.org/HOWTO/TransparentProxy.html
    Note that this document focuses only on HTTP proxing. I get many emails
    asking about transparent FTP proxying. Squid can't do it.

    so HOW to do transparent of MTA, FTP, DNS or any other if the SQUID daemon
    is not for that???,,, and what i've seen on kernel, that the only thing
    working stuff with REDIRECT firewall target is SQUID .

    >
    > You should be able to employ the method in this HOWTO to email filter
    > redirection for your MTA and any other caching, filtering, etc
    > daemons that
    > you wish to force traffic through.
    SQUID cannot pass any traffic other that WWW (as i've seen from docs),
    the transparent ftp cache'ing isn't possible via squid too (only acts as
    w3cache)

    So what to do ??? the only way i thing is possible is to hack dns replies
    for any MX, to pointer to my MTA .

    > If your interested in a heavier squid filter check out
    > http://dansguardian.org/ -- Free squid filter with phrase parsing
    > and I use
    > the http://www.squidguard.org/blacklist/ blacklists at work
    > Hope this helps!
    > Philip Duldig

     Arkadiusz Binder

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  • Next message: Henry, Christopher M.: "RE: Watchguard Firebox firewalls"

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