Saturday, December 17, 2005

SMTP on Port 26

To open up a new port (26) and redirect all packets to port 25, use

iptables -t nat -A PREROUTING -p tcp -d --dport 26 -j DNAT --to

--dport 26 does the redirection job. pblinux pointed the following for Ensim Pro 4.0.1 on RHEL

/sbin/iptables -t nat -A PREROUTING -p tcp --dport 20025 -i eth0 -j DNAT --to


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