I need help learning how to set them up in centos 6 (linux). I know it's not recommended to use it, but I need it for port mapping and other things. Anyway, every time I try to setup iptables I always end up locking my self out of SSH and have a really hard time opening up specific ports.
I've really never used them before and so I need a good guide to read or someone to help me out step by step.
Iptables
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