How to add port to iptable in linux

Please note that this document is for reference only we do not take any responsible for any data lost.

let say you want to add port 456 to iptable

login to your server via ssh and type in following command

iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 456 -j ACCEPT

this will allow port 456 to pass thru to firewall
  • Iptable, linux, ping, firewall
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