I am looking for installing an Ubuntu server in a closed industrial network to monitor some stuff. I would like the Ubuntu server to NOT to attempt any automatic update. Do I need to install
unattended-upgrades just to turn automatic upgrade off?
I don't want to block any ports on the server just yet. I am fairly new to linux, I would like to keep all other options like remote access, serving a simple web interface etc. open
Further question: Since we are here, does Ubuntu server (by default) send out any other "queries" onto the network automatically?