1.  ERROR 2002 (HY000):Can’t connect to local MySQL server

A: most because mysql installation way is to use the RPM, automatically looking for/var/lib/mysql/mysql. This document the sock, and mysql. The sock this file should be created at the time of initialization, so when start the service for the first time this thing.

[mysql] [client] socket = / TMP /mysql.sock /var/lib/mysql/ Mysql -h127.0.0.1 -uuser -ppassword = / TMP/mysql.sock = / TMP / Is # ln -s/TMP/mysql. The sock/var/lib/mysql/mysql. The sock

Sock file is unavailable. Run the service mysqld start command

Error 1045 (28000): Access denied for user’root’@’localhost’?

Answer: need to change password!

# /etc/init.d/mysql stop

# mysqld_safe –user=mysql–skip-grant-tables –skip-networking &

# mysql -u root mysql

mysql> UPDATE user SETPassword=PASSWORD(‘newpassword’) where USER=’root’;

mysql> FLUSH PRIVILEGES;

mysql> quit

# /etc/init.d/mysqld restart

# mysql –u root –p

Enter password:

mysql>

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