Port in Debian-Firewall-free – so it works
- First, open the console as Administrator in Debian Linux.
- To be able to Ports in the Firewall, you use the command "iptables-A".
- An example: you Want to specify the UDP Port 33333 in the Firewall, use the command "iptables-A INPUT -p udp --dport 33333 -j ACCEPT".
- For a TCP Port, replace the "udp" against a "tcp" and confirm with [Enter].
- If you want to specify a different Port, you need to simply replace the "33333" against a different Port.
Debian: Ports in Firewall free
You will learn in the next tip, as in Debian, create a Backup can.
