Errors in /var/log/secure: Unable to connect to Plesk Database: Can't connect to local MySQL server through socket

Updated October 30, 2023 04:36

kb: bug Plesk for Linux

Symptoms

In attempt to connect to the server under non-existing user, error below can be found in /var/log/secure file:

CONFIG_TEXT: sshd[4568]: Unable to connect to Plesk Database: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (13)
SELinux is enabled on the server and set to Enforcing mode:

# getenforce
Enforcing

Plesk bug with ID PPPM-10120.

The error message can be safely ignored as it does not affect anything.

As a workaround to get rid of the error apply the steps below: