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Groups > linux.debian.user > #182670

Re: firewall rules for NAT

From Dan Purgert <dan@djph.net>
Newsgroups linux.debian.user
Subject Re: firewall rules for NAT
Date 2017-06-26 11:50 +0200
Message-ID <tWyOB-EC-3@gated-at.bofh.it> (permalink)
References <tWmX8-1GW-7@gated-at.bofh.it>
Organization A noiseless patient Spider

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Lucio Crusca wrote:
>[...]
> It works like a charm, but there is one problem: my mail server receives 
> all the connections from the router, which has its own private IP 
> address (10.7.33.100), so the mail server can't enforce SPF policies nor 
> DNS RBL rules on incoming mail connections.

That shouldn't be happening -- you may have an errant rule you didn't
show from one of the hosts in there that's doing this to you (perhaps
NAT Hairpin).

-- 
|_|O|_| Registered Linux user #585947
|_|_|O| Github: https://github.com/dpurgert
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Thread

firewall rules for NAT Lucio Crusca <lucio@sulweb.org> - 2017-06-25 23:10 +0200
  Re: firewall rules for NAT Dan Purgert <dan@djph.net> - 2017-06-26 11:50 +0200
    Re: firewall rules for NAT Lucio Crusca <lucio@sulweb.org> - 2017-06-27 13:30 +0200
      Re: firewall rules for NAT Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-06-27 23:40 +0200
        Re: firewall rules for NAT Lucio Crusca <lucio@sulweb.org> - 2017-06-29 10:40 +0200
          Re: firewall rules for NAT Igor Cicimov <icicimov@gmail.com> - 2017-06-30 00:40 +0200
            Re: firewall rules for NAT Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-06-30 08:00 +0200
              Re: firewall rules for NAT Igor Cicimov <icicimov@gmail.com> - 2017-06-30 15:20 +0200
                Re: firewall rules for NAT Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-06-30 23:20 +0200
                Re: firewall rules for NAT Igor Cicimov <icicimov@gmail.com> - 2017-07-01 03:30 +0200
                Re: firewall rules for NAT Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-07-01 11:40 +0200
                Re: firewall rules for NAT Brad Rogers <brad@fineby.me.uk> - 2017-07-01 13:10 +0200
                Re: firewall rules for NAT Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-07-01 13:30 +0200
                Re: firewall rules for NAT Brad Rogers <brad@fineby.me.uk> - 2017-07-01 13:40 +0200
                Re: firewall rules for NAT Brad Rogers <brad@fineby.me.uk> - 2017-07-01 13:50 +0200
                Re: firewall rules for NAT Igor Cicimov <icicimov@gmail.com> - 2017-07-01 16:40 +0200
      Re: firewall rules for NAT Igor Cicimov <icicimov@gmail.com> - 2017-06-29 01:10 +0200

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