mysql安装

yum install mysql mysql-server

 

第一次安装要先产生数据库文件

/usr/bin/mysql_install_db

 

 

/usr/bin/mysqladmin -u root password 'new-password'

/usr/bin/mysqladmin -u root -h HELLO password 'new-password'

 

1. 错误提示 ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

service mysqld start                        // 第一次启动，执行这句话才会产生 mysql.sock 文件

2. 错误提示  ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

/etc/init.d/mysqld stop

第一次设置root密码

# /etc/init.d/mysql stop
# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
# mysql -u root mysql
mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';
mysql> FLUSH PRIVILEGES;
mysql> quit;
# /etc/init.d/mysql restart         // service mysqld restart
# mysql -uroot -p
Enter password: <输入新设的密码newpassword>
mysql>

需要打开3306端口

netstat -an | grep 3306 （查看是否打开3306端口）