Error message

• Warning: mysql_connect() [function.mysql-connect]: Lost connection to MySQL server at 'reading initial communication packet', system error: 111 in eval() (line 54 of /www/production/drupal7/modules/php/php.module(80) : eval()'d code).
• Warning: mysql_select_db() expects parameter 2 to be resource, boolean given in eval() (line 55 of /www/production/drupal7/modules/php/php.module(80) : eval()'d code).
• Warning: mysql_query() [function.mysql-query]: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) in eval() (line 56 of /www/production/drupal7/modules/php/php.module(80) : eval()'d code).
• Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in eval() (line 56 of /www/production/drupal7/modules/php/php.module(80) : eval()'d code).
• Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in eval() (line 58 of /www/production/drupal7/modules/php/php.module(80) : eval()'d code).