I recently did a
yum update and
reboot, and now I can't SSH into my machine. I use a non-standard SSH port (let's say 444) and when I run
nmap <MY-IP> -p444 --reason I get
444/tcp filtered unknown host-prohibited. If I run
-p22 instead I get
22/tcp closed ssh.
I've booted into the rescue mode and mounted my disk and I'm unclear where iptables rules are stored. I think they should be in
/etc/sysconfig/iptables, but that file doesn't exist. I got this server a while ago for an experiment and it is possible that I never set any firewall rules up. But if that's the case then what's filtering port 444? Could it be something other than iptables - if so how do I find it?