FIREWALLS AND IPTABLES

[Sn0rlax]

Hi, I typed this on my console putty
iptables -I INPUT ! -s <IP of the bungeecord> -p tcp --dport <PORT OF BUNGEECORD> -j DROP

is that a correct firewall command?
and i also i tried to copy the sample script ip tables on https://www.spigotmc.org/wiki/firewall-guide/#firewalling-with-iptables

but it seems that it doesnt work.
It says that command not found.
I use Ubunto.

 

[I_Luv_Cowz]

Just use UFW,
-"apt-get install ufw"
-"ufw allow 22"
-"ufw allow <Bungecord port (normally 25565)>"
-"ufw enable"

This will block all external connections to any port other than the bungeecord port (Preventing bungee exploits).