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yum安装MySQL并设置密码_MySQL

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2016-06-01 13:34:491474browse

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yum安装MySQL并设置密码

 

Shell代码  

yum install mysql  

yum install mysql-server  

yum install mysql-devel  

chgrp -R mysql /var/lib/mysql  

chmod -R 770 /var/lib/mysql  

service mysqld start   

mysql  

SET PASSWORD FOR 'root'@'localhost' = PASSWORD('secret_password');  

   

 设置默认编码等一些初始参数(my.cnf)(若无my.cnf, 则可cp /usr/share/mysql/my-small.cnf /etc/my.cnf)

 

   vi /etc/my.cnf

   [mysqld]

   datadir=/var/lib/mysql

   socket=/var/lib/mysql/mysql.sock

   user=mysql

   default-character-set=utf8 [添加]

   default-storage-engine=INNODB [添加]

   old_passwords=1

   [client]

   default-character-set=utf8 [添加]

   [mysqld_safe]

   log-error=/var/log/mysqld.log

   pid-file=/var/run/mysqld/mysqld.pid

下面就是常规的操作了:

  更改 root 密码:  mysqladmin -u root password 'newpassword'

  添加mysql用户: GRANT ALL PRIVILEGES ON my_db.* TO 'user'@'localhost' IDENTIFIED BY'password';

  删除test数据库: mysql -u root -p mysql> DROP DATABASE test; 

  删除匿名帐户: DELETE FROM mysql.user WHERE user = ''; 

  重载权限: mysql> FLUSH PRIVILEGES; 

 

 如要其他机器能访问,在mysql.user中添加一个Host为'%'的user,然后flush priviledges;,最后防火墙加一句类似这样的语句即可(开通3306端口):

Shell代码  

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT  

 

如果要reboot自启动:

 

Shell代码  

chkconfig --levels 345 mysqld on  

 

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