I'm trying to setup a firewall. I found Firestarter is the one for Ubuntu, so I attempted to download it. This gave me an opportunity to work with Synaptic package manager. My experience so far with package managers (pm) is with SUSE.
While installing Firestarter, I discovered I had 67 updates that were waiting. I have those going right now. I believe keeping up with updates is crucial to secure computing. I'm going to stay on top of that issue.