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How can I forward ports on my Linux firewall?
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Views: 443
Votes: 1
Posted: 03 Feb, 2007
by: Admin A.
Updated: 06 Mar, 2008
by: Admin A.

ipmasqadm (port forwarding)

ipmasqadm portfw -f ipmasqadm portfw -a -P tcp -L x.x.x.x 21 -R y.y.y.y 21 -p 100

Where x.x.x.x is the external address of your firewall and y.y.y.y is th einternal server you wish to forward the port to.

(in this case port 21 - ftp)

Update:

Newer versions of iptables offer better ways of doing this. Details soon (04/03/08)
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