title: Error connecting to MySQL: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (13)
body: <p>I m using Directadmin; 
  It has been while that I m getting this error (knowing that mysqld is running):</p>
  
  <p>Error connecting to MySQL: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (13)</p>
  
  <p>would you please indicate me what is exactly the issue ( meaning of the "(13)" ) ,
  and possible solution,
  thanks.</p>