Khan pravi:
Hello,
I am total beginner to Linux and I'm trying to learn iptables basics. I would like to learn how to close all ports but 80, 20, and that ports 22 and 10000 will be open only to my IP address.
How can I do that.
TNX!
Close all ports: iptables -P INPUT DROP
Just create a chain named "myself":
iptables -N myself
iptables -A myself -m mac -s xxx.xxx.xxx.xxx --mac aa:bb:cc:dd:ee:ff -j ACCEPT
and then for each port, eg. port 80: iptables -t filter -A INPUT -p tcp -s 0/0 -d $NET --dport 80 -j myself
--Sasa
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