Resolved no root login ssh

[FelixHohl]

Server operating system version

ubuntu 20.04

Plesk version and microupdate number

18.0.56

Hi together,

suddenly i can no longer log on to my server via ssh with the root user.
I can get into plesk with the root user and pw without any problems.

anyone have an idea what the problem could be?

Thanks in advance

 

[MartinT]

Maybe your IP Adrees is jailed at fail2ban? Restart rooter to get a new IP or unjail in plesk beackend.

 

[FelixHohl]

Where in plesk?

 

[rgv]

Where in plesk?

Tools & Settings > IP Address Banning (Fail2Ban) > Banned IP Addresses

And also check if your ssh Server allows root logins with a password - the default is "no"

cat /etc/ssh/sshd_config | grep PermitRootLogin

should be "PermitRootLogin yes" and not "PermitRootLogin prohibit-password"
Change it and do not forget to restart the ssh Server:

service sshd restart

 

[FelixHohl]

thx last one was the trick. thanks