[CentOS] port forwarding using iptables

[Iñigo Medina]

Hi Boris,

> Does anybody know if there is a convenient utility to configure
> iptables on a CentOS 5.4 or 5.3 machine to do port forwarding?
> And if not, where and how does one put the requisite commands?

I'm using iptables just as command. For information about service and 
very useful examples look at CentOS wiki on iptables:
http://wiki.centos.org/HowTos/Network/IPTables

iñ