We need to set up some ip tables on a remote Linux Server. I want to take the precaution that if a wrong ip table is entered we will loose access to the remote box.
With a Cisco Router I save the configuration and I use the command "reload in 5".
Then I enter the configuration. If something goes wrong, the router reboots with the previous configuration and no harm done.
Is this possible with a Linux Centos Server where ip tables are being applied?