Thanks, Segun. I’m glad the tutorial was helpful.

Hey Ari, great observation, However, the autoconfiguration may still be a blessing when you are trying to troubleshoot network issues. Of course, disabling Network Manager is not a good idea because, upon a reboot, you will lose connectivity to your server.

There is no need for Autoconf when the same server is running 10 years in premises 24/7.

Any auto-configuration event would cause downtime and even an option to have Autoconf causes impressive attack vectors, and the servers will fall like dominoes.

And I hate that firewalld and its default setup which is shoveled from the matter that stinks. It will be blessed by attackers too. (just check net documents how NFS is configured nicely to the wrong zone ..).

Try run systemctl disable NetworkManager, then reboot your machine, you will see a BIG difference…

In fact, don’t try it, it will lock up your machine if it is headless, as there will be no more network.