Restricting MySQL 3306 port to localhost with IPTABLES

Question

I am trying to restrict MySQL 3306 port on a linux machine from making any connections to anything other than localhost to prevent outside attacks. i have the following code, i

Answer 1

Why not just turn off networking with MySQL?

Add to my.cnf:

skip-networking

It's supposed to also give a negligible performance improvement by forcing connection through pipes, which skips over lots of tests used for the networking section. Please note you will need to use localhost, not 127.0.0.1, after the change.