Hello folks! I am looking for some guidance or direction on how to make sure my “server” locked down as much as possible. I know there are several websites/guides out there but was hoping I could get someone to recommend some good ones to use that cover all the bases solidly.
There are just so much info out there, wading through looking for a solid guide when you ignorant is hazardous.
Server is running Mint and hosts my Plex/Radarr/Sonarr stack. Using a locally hosted reverse proxy for any outside connections.
This started as a project to learn linux, so things are a bit shaky on linux understanding but getting better. I used GPT assistance to lock it down to the best of my ability, making sure (or I think) that most obvious firewalls rules were setup…ect.
Thanks for your help :)
The recommendations so far are quite solid.
I’d also add that crowdsec with the right collections as a primary filter within your reverse proxy setup can be extremely useful, potentially even better than fail2ban, as CS delivers a literal “scan every packet and put them against these rules” approach - where the rules are crowd sourced, thus are more up to date than any manual blocklists, filter list etc. can be, and can spot even 0day intrusion approaches.