Re: [Shorewall-users] shorewall blocks inbound traffic in port 25

[Benny Pedersen]

On 2021-06-14 08:04, Zenny wrote:

root@server2:~# netstat -lnp | grep :25
tcp        0      0 127.0.0.1:25            0.0.0.0:*
           LISTEN      27946/master
Where did I miss the wagon?

https://shorewall.org/manpages/shorewall-rules.html see Examples rules 
for DNAT

this must be added to the outside firewall, then when this is done you 
only use inside postfix

and the outside postfix can be configured to loopback only


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