I always use 'iptables -L -n -v --line-numbers' - verbose will show you stuff like which interface the rule is set to, and line numbers can be useful when addin

I always use 'iptables -L -n -v --line-numbers' - verbose will show you stuff like which interface the rule is set to, and line numbers can be useful when adding a rule before another with 'iptables -I'