[SOLVED] sshd is not working on ubuntu server

[gilded heath]

Ive tried purging openssh-server and reinstalling but I have the same issue, i really would like to protect the newly created mail server!

  ssh.service                                           loaded    active   running OpenBSD Secure Shell server
● sshd-keygen.service                                   not-found inactive dead    sshd-keygen.service
● sshd.service                                          not-found inactive dead    sshd.service```

```mailserver@exulan:~$ sudo systemctl restart sshd
[sudo] password for mailserver:
Failed to restart sshd.service: Unit sshd.service not found.```

This happens fresh out of the box too, you press the option to install openssh-server on install and it should bloody work!

[pallid plover]

does this happen with other distros btw?

i recommend debian over anything for servers

[gilded heath]

i havent had it happen with others but i was following a ubuntu based tutorial so i thought i would just use ubuntu server

[pallid plover]

debian should work too

https://landchad.net/ you can check this out for more guides

anyhow

[gilded heath]

its taken me like a day and a half to get the mail server working fully so i dont really wanna switch to another distro lol

[pallid plover]

i dont really know whats going on here, as i have not used ubuntu in forever, just giving my thoughts

ill look into it rq

[gilded heath]

would be nice to know to fix this anyway when i do need ubuntu server in the future for any reason and it does this shit again

[gilded heath]

right figured it out!

https://discourse.ubuntu.com/t/sshd-now-uses-socket-based-activation-ubuntu-22-10-and-later/30189/30

Ubuntu after 2022 uses socket for ssh instead of service so sshd isnt activated and thus changing the sshd_config file wont work

to fix that you gotta run these commands

rm -f /etc/systemd/system/ssh.service.d/00-socket.conf
rm -f /etc/systemd/system/ssh.socket.d/addresses.conf
systemctl daemon-reload
systemctl enable --now ssh.service```

everything was changing after that, awesome! but `PasswordAuthentication no` was not taking effect, for some reason there was an overriding file in `/etc/ssh/sshd_config.d/` named `50-cloud-init.conf` so i removed that and well pub/private key auth works now!

idk ubuntu changed all this, very annoying

[pallid plover]

ubuntu moment of all time

... solved

[old willow]

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