this post was submitted on 10 Feb 2025
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    I didn't know you were supposed to disable root user... (linux.community)
    submitted 2 months ago by Tablaste@linux.community to c/linuxmemes@lemmy.world
    10 comments fedilink hide all child comments
     

    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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    [–] dadabean@feddit.org 0 points 2 months ago (1 children)

    Interesting. Do you know how it got compromised?

    [–] Tablaste@linux.community 0 points 2 months ago* (last edited 2 months ago) (1 children)

    I published it to the internet and the next day, I couldn't ssh into the server anymore with my user account and something was off.

    Tried root + password, also failed.

    Immediately facepalmed because the password was the generic 8 characters and there was no fail2ban to stop guessing.

    [–] PotatoesFall@discuss.tchncs.de 0 points 2 months ago (1 children)

    wow crazy that this was the default setup. It should really force you to either disable root or set a proper password (or warn you)

    [–] jatone@lemmy.dbzer0.com 0 points 2 months ago (1 children)

    Most distributions disable root by default

    [–] satans_methpipe@lemmy.world -1 points 2 months ago (2 children)

    Which ones? I'm asking because that isn't true for cent, rocky, arch.

    [–] jatone@lemmy.dbzer0.com 0 points 2 months ago* (last edited 2 months ago) (1 children)

    we're probably talking about different things. virtually no distribution comes with root access with a password. you have to explicitly give the root user a password. without a password no amount of brute force sshing root will work. I'm not saying the root user is entirely disabled. so either the service OP is building on is basically a goldmine for compromised machines or OP literally shot themselves in the root by giving root a password manually. something you should never do.

    [–] satans_methpipe@lemmy.world -1 points 2 months ago* (last edited 2 months ago)

    Yeah I was confused about the comment chain. I was thinking terminal login vs ssh. You're right in my experience...root ssh requires user intervention for RHEL and friends and arch and debian.

    Side note: did you mean to say "shot themselves in the root"? I love it either way.

    [–] TheEntity@lemmy.world 0 points 2 months ago (1 children)

    Mostly Ubuntu. And... I think it's just Ubuntu.

    [–] satans_methpipe@lemmy.world -1 points 2 months ago

    Ah fair enough, I know that's the basis of a ton of distros. I lean towards RHEL so I'm not super fluent there.

    [–] satans_methpipe@lemmy.world -1 points 2 months ago* (last edited 2 months ago)

    On a new linux install or image I will always:

    • Make new users(s)
    • Setup new user to sudo
    • Change ssh port
    • Change new user to authenticate ssh via key+password
    • Disable root ssh login