My 2 paisas

To allow forwarding of a port in the server

Posted on: November 3, 2009

Well I needed to forward port 587 in my server so that Thunderbird installed in my local desktop could send mails through gmail account.
Here is how I did it.

iptables -I FORWARD -p tcp –dport 587 -j ACCEPT

What the above command does exactly is writes a (-I) inserts a new rule in the FORWARD chain which (-j) ACCEPTs all packets following (-p) tcp protocol and (–dport) destination port 587

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