Quote:-- Solucion del problema de conexion
1º.- Editar el archivo /etc/mysql/debian.cnf
Sale algo parecido a esto
# Automatically generated for Debian scripts. DO NOT TOUCH!
[client]
host = localhost
user = debian-sys-maint
password = 51RsCKiYduWP835x
socket = /var/run/mysqld/mysqld.sock
[mysql_upgrade]
user = debian-sys-maint
password = 51RsCKiYduWP835x
socket = /var/run/mysqld/mysqld.sock
basedir = /usr

El error como observais se da por la falta de conexion de usuario debian-sys-maint'@'localhost, y es que su password exportado no coincide con el generado por el sistema automaticamente, luego hay que hacerlo de forma manual por sql.

Tan solo copiar el password y vamos a sql
www-2# /etc/mysql# mysql -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.0.51a-24 (Debian)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> GRANT ALL PRIVILEGES ON * . * TO 'debian-sys-maint'@'localhost'
-> IDENTIFIED BY '51RsCKiYduWP835x' // Password copiado de debian.conf
-> WITH GRANT OPTION
-> MAX_QUERIES_PER_HOUR 0 MAX_CONNECTIONS_PER_HOUR 0 MAX_UPDATES_PER_HOUR
-> 0 MAX_USER_CONNECTIONS 0 ;
Query OK, 0 rows affected (0.01 sec)

mysql> quit