Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

Question

I am getting the following error when I try to connect to mysql:

Can\'t connect to local MySQL server through socket \'/var/lib/mysql/mysql.sock\' (2)<

Answer 1

if you change files in /var/lib/mysql [ like copy or replace that ], you must set owner of files to mysql this is so important if mariadb.service restart has been faild

chown -R mysql:mysql /var/lib/mysql/*

chmod -R 700 /var/lib/mysql/*