iptables-save outputs current rules to stdin. If you want them to be saved, redirect output not to /dev/null but /etc/sysconfig/iptables .
I forgot to mention that my cron job was already updated to output to a regular file, but even this still does not work. Chains are gone after reboot. [root@mars ~]# cat /etc/cron.hourly/iptables.cron #!/bin/sh /sbin/iptables-save > /etc/sysconfig/iptables
Use "service iptables save" to save the current rules for use on the next reboot.
When I do that, after I reboot, I get this: [root@mars ~]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination
