I didn't know you were supposed to disable root user...
I didn't know you were supposed to disable root user...
Background: 15 years of experience in software and apparently spoiled because it was already set up correctly.
Been practicing doing my own servers, published a test site and 24 hours later, root was compromised.
Rolled back to the backup before I made it public and now I have a security checklist.
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I've been quite stupid with this but never really had issues. Ever since I changed the open ssh port from 22 to something else, my server is basically ignored by botnets. These days I obviously also have some other tricks like fail2ban, but it was funny how effective that was.
Almost the same here. I also change some ssh settings: disable root login, disable password, allow only public key login. That's about it. I never had any problems.
Fsil2ban piped to pfblocker works great. Plus snort