Hi all,
I found a hobby in trying to secure my Linux server, maybe even beyond reasonable means.
Currently, my system is heavily locked down with user permissions. Every file has a group owner, and every server application has its own user. Each user will only have access to files it is explicitly added to.
My server is only accessible from LAN or VPN (though I’ve been interested in hosting publicly accessible stuff). I have TLS certs for most everything they can use it (albeit they’re self signed certs, which some people don’t like), and ssh is only via ssh keys that are passphrase protected.
What are some suggestions for things I can do to further improve my security? It doesn’t have to be super useful, as this is also fun for me.
Some things in mind:
Other questions:
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Maybe not 100% in the subject, but I just deployed a Wazuh instance to let me know how any of my hosts, containers and computers may have vulnerabilities. I found a crap load of holes in my services, and I’m halfway through squashing all of them.
If this is a hobby, that’s sure to keep you entertained for quite some time.