Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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For RedHat, the output of
/etc/rc.d/init.d/iptables status
--or--
/etc/rc.d/init.d/ipchains status
would be helpful here. It will display all your firewall rules, and hopefully someone will be able to answer your questions.
The GUI for Firewall Settings just doesn't make any sense to me. Just like you said, it seems that when you make a change and then go back nothing changes. Just use the commands that bentz said to see your current firewall rules or do:
I'm not at all familiar with the GUI tools... But: If you make rule changes, you will need to save them so that they survive a reboot. Use the command 'iptables-save > /etc/sysconfig/iptables'. This will write your current ruleset to a configuration file, which will be read upon the next reboot or '/etc/rc.d/init.d/iptables start'. There is also an iptables-restore, but I'm too lazy to RTFM for that one.
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