Autenticação squid+mysql

Amigo,

Não consigo autenticar os suarios que estao no mysql, nem se quer gera cache da url, sempre que reinicio o squid ele mostra o erro abixo, o log gerado ta no arquivo use.log.aa

abracos

Segue abaixo:

Oct 26 21:36:17 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:17 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:17 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:17 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:17 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:20 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:20 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:20 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:20 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:20 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:23 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:23 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!
Oct 26 21:36:23 nxcascavel (mysql_auth): Can't open mysql_auth config file: /usr/local/squid/etc/mysql_auth.conf!

Olhe a permissão desse arquivo:

# ls -l /usr/local/squid/etc/mysql_auth.conf

E poste aki.