Mysql error

[Pablo Lucchetti]

Hi,
I've an error with mysql, I think is php mysql client.
I did upgrade to php5 but the erros remains the same.
Mysql is  Ver 14.12 Distrib 5.0.32, for pc-linux-gnu (i486) using 
readline 5.2


rlm_sql (sql): Driver rlm_sql_mysql (module rlm_sql_mysql) loaded and linked
rlm_sql (sql): Attempting to connect to root at localhost:/radius
rlm_sql (sql): starting 0
rlm_sql (sql): Attempting to connect rlm_sql_mysql #0
rlm_sql_mysql: Starting connect to MySQL server for #0
rlm_sql_mysql: Couldn't connect socket to MySQL server root at localhost:radius
rlm_sql_mysql: Mysql error 'Client does not support authentication 
protocol requested by server; consider upgrading MySQL client'
rlm_sql (sql): Failed to connect DB handle #0
rlm_sql (sql): starting 1
rlm_sql (sql): starting 2
rlm_sql (sql): starting 3
rlm_sql (sql): starting 4
rlm_sql (sql): Failed to connect to any SQL server.
Module: Instantiated sql (sql)
Module: Loaded Acct-Unique-Session-Id
  acct_unique: key = "User-Name, Acct-Session-Id, NAS-IP-Address, 
Client-IP-Address, NAS-Port"
Module: Instantiated acct_unique (acct_unique)
Listening on authentication *:1812
Listening on accounting *:1813
Ready to process requests.


Any help?


Thanks in advance
Pablo