I have two machines, one is Windows 11 and my server is running Debian 12. SSH has run fine on both machines up until recently. Whenever i try to SSH into my server, it will reject the password (which is undoubtedly correct), and after a few failed attempts it will give me an error that says “Permission denied (publickey,password).” I can SSH into the server completely fine on my other devices, so the problem has to lie within my Windows machine. Since I last used SSH, the only notable things that have happened were that I installed (and soon after uninstalled) the OpenSSH server for Windows, and yesterday an internet outage happened that left me without internet for a full day. This morning, the router was reset and I’ve ensured that both machines are connected.

If this is the wrong sub to be posting this on, I’d appreciate if someone were to kindly point me to a correct sub on which I could repost.

  • springs87@alien.topBEnglish
    1·
    11 months ago

    When you say your Windows machine is getting an external ip, is it an actual external ip or that it’s the 169 address that your machine gets when it can’t speak to your dhcp server?

    Can you access the Internet or any other services on your Windows machine?

    • Senkyou@alien.topBEnglish
      1·
      11 months ago

      Fwiw he wouldn’t get a public key password denied type error if he wasn’t able to at least reach the target, to my knowledge.

    • bridgebucket@alien.topOPBEnglish
      1·
      11 months ago

      It was my actual external IP.

      I could access the internet and everything just fine, but when I tried to connect to Jellyfin or anything that my other machine is running it wouldn’t work. The issue is resolved now.

  • helmut72@alien.topBEnglish
    1·
    11 months ago

    Connect with more v(erbose) output to your server. Example:

    ssh -vvvv @

    … and read line by line.

  • thisbenzingring@lemmy.sdf.orgEnglish
    1·
    11 months ago

    did you try a different client? maybe try removing the cert or make sure that the Credential Manager control panel doesn’t have any entries for that system

  • ddpbsd@alien.topBEnglish
    1·
    11 months ago

    systemctl stop ssh&&/usr/sbin/sshd -ddd on the server, then try again

    • bridgebucket@alien.topOPBEnglish
      1·
      11 months ago

      I’m using default terminal, but I’ve tried connecting from putty as well and it didn’t work.

        • bridgebucket@alien.topOPBEnglish
          1·
          11 months ago

          I’ve installed Fail2Ban before on this machine, but I’ve since uninstalled it. I’ve also checked sudo-iptables, and it doesn’t show any rejected IPs.

  • vuduguru@alien.topBEnglish
    1·
    11 months ago

    Is is possible that Windows passkey is being used? Did you remove all traces of the sshd install. Also if your using Windows Terminal try putty.

    Note the order of “(publickey,password)”. I’m gonna guess publickey is being used before password.

    Certainly seems like a Windows (client) problem and not a server problem.

  • Senkyou@alien.topBEnglish
    1·
    11 months ago

    Check your logs /var/log/auth.log. You can pipe grep it to search by IP or just try to connect then quickly check. That might give you more insight that isn’t being provided to the remote client (windows).