If you get any of the following error messages when you try to connect to MySQL server :

ERROR 2003: Can't connect to MySQL server on 'host_name' (111)

ERROR 2002: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (111)

Client does not support authentication protocol requested by server; consider upgrading MySQL client

Access denied for user 'root'@'localhost' (using password: YES)

Host ... is not allowed to connect to this MySQL server

Access denied for user 'root'@'' (using password: YES)

Access denied for user ''@'unknown'

Access to database denied

go to this Web page for detailed info on HowTo fix these problems.