Have you tried to reboot it into single user mode and just doing an iptables -F to flush out all the rules?

| I have a server that I screwed up iptables on. Now when the server | restarts it locks up trying to apply the firewall rules. | | How can I remove the rules (set to all ACCEPT) in a linux rescue mode or | knoppix or other way of getting to the file system? | | Any suggestions how to fix this? | | Thanks, | James | | _______________________________________________ | CentOS mailing list | CentOS@centos.org | http://lists.centos.org/mailman/listinfo/centos

James Pifer wrote:

I have a server that I screwed up iptables on. Now when the server restarts it locks up trying to apply the firewall rules.

How can I remove the rules (set to all ACCEPT) in a linux rescue mode or knoppix or other way of getting to the file system?

Any suggestions how to fix this?

Those rules are stored in /etc/sysconfig/iptables, so you have some choices:

1) Boot into rescue mode, then do /sbin/service iptables stop, then exit to boot the system normally. You'll have no firewall at this point. Create the rules as you want them (with iptables command), then do an /sbin/service iptables save to fix the file.

2) Boot into rescue mode, then edit /etc/sysconfig/iptables to make the firewall what you wanted in the first place, then exit to boot normally.