The "safest" way of self hosting

Hello peoples,

I am looking for tips on how to make my self-hosted setup as safe as possible.

Some background: I started self-hosting some services about a year ago, using an old lenovo thin client. It's plenty powerful for what I'm asking it to do, and it's not too loud. Hardware wise I am not expecting to change things up any time soon.

I am not expecting anyone to take the time to baby me through the process, I will be more than happy with some links to good articles and the like. My main problem is that there's so much information out there, I just don't know where to start or what to trust.

Anyways, thank you for reading.

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