Plus 1 to openvas. UI is indeed horrendous though.
Be careful running high load tests against sensitive devices. I once ran it against a PoE switch I used for my cameras and it did something so crazy that it required me not to only power cycle the switch, but to disconnect all the cameras first and then power cycle. Was super confusing and felt like it found a way to short the device lol. Scared the hell out of me.
That being said, I’ve found many many things to improve on my devices thanks to openvas.
Not much for myself, like many others. But my backups are manual. I have an external drive I backup to and unplug as I intentionally want to keep it completely isolated from the network in case of a breach. Because of that, maybe 10 minutes a week? Running gentoo with tons of scripts and docker containers that I have automatically updating. The only time I need to intervene the updates is when my script sends me a push notification of an eselect news item (like a major upcoming update) or kernel update.
I also use a custom monitoring software I wrote that ties into a MySQL db that’s connected to with grafana for general software, network alerts (new devices connecting to network, suspicious DNS requests, suspicious ports, suspicious countries being reached out to like china, etc) or hardware failures (like a raid drive failing)… So yeah, automate if you know how to script or program, and you’ll be pretty much worry free most of the time.