centos6下MySQL的簡單安裝配置
環境：centos6.7 32bit
數據庫MySQL的安裝配置
1.安裝
[root@cloudstack Desktop]# yum -y install mysql-server Loaded plugins: fastestmirror, refresh-packagekit, security ....... Dependency Installed: mysql.i686 0:5.1.73-5.el6_6 perl-DBD-MySQL.i686 0:4.013-3.el6 perl-DBI.i686 0:1.609-4.el6 Complete!
[root@cloudstack Desktop]# yum -y install php-mysql Loaded plugins: fastestmirror, refresh-packagekit, security Setting up Install Process ...... Installed: php-mysql.i686 0:5.3.3-46.el6_6 Dependency Installed: php-common.i686 0:5.3.3-46.el6_6 php-pdo.i686 0:5.3.3-46.el6_6 Complete!
2.啟動
[root@cloudstack Desktop]# /etc/rc.d/init.d/mysqld start Initializing MySQL database: Installing MySQL system tables... OK Filling help tables... OK To start mysqld at boot time you have to copy support-files/mysql.server to the right place for your system PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER ! To do so, start the server, then issue the following commands: /usr/bin/mysqladmin -u root password 'new-password' /usr/bin/mysqladmin -u root -h cloudstack.lyy.com password 'new-password' Alternatively you can run: /usr/bin/mysql_secure_installation which will also give you the option of removing the test databases and anonymous user created by default. This is strongly recommended for production servers. See the manual for more instructions. You can start the MySQL daemon with: cd /usr ; /usr/bin/mysqld_safe & You can test the MySQL daemon with mysql-test-run.pl cd /usr/mysql-test ; perl mysql-test-run.pl Please report any problems with the /usr/bin/mysqlbug script! [ OK ] Starting mysqld: [ OK ]
3.通過root用戶（此時并沒有密碼）登陸
[root@cloudstack Desktop]# mysql -u root Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.1.73 Source distribution Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
查看當前root用戶沒有密碼：
mysql> select user, host, password from mysql.user; +------+--------------------+----------+ | user | host | password | +------+--------------------+----------+ | root | localhost | | | root | cloudstack.lyy.com | | | root | 127.0.0.1 | | | | localhost | | | | cloudstack.lyy.com | | +------+--------------------+----------+ 5 rows in set (0.00 sec)
設置root用戶的密碼為操作系統的密碼：
mysql> set password for root@localhost=password('centos6');
Query OK, 0 rows affected (0.00 sec)
mysql> set password for root@cloudstack.lyy.com=password('centos6');
Query OK, 0 rows affected (0.00 sec)
mysql> select user, host, password from mysql.user;
+------+--------------------+-------------------------------------------+
| user | host | password |
+------+--------------------+-------------------------------------------+
| root | localhost | *D53AD928B433F60B05A0B29CA1BCEA6809AC1B9D |
| root | cloudstack.lyy.com | *D53AD928B433F60B05A0B29CA1BCEA6809AC1B9D |
| root | 127.0.0.1 | |
| | localhost | |
| | cloudstack.lyy.com | |
+------+--------------------+-------------------------------------------+
5 rows in set (0.00 sec)
mysql> exit
Bye
退出mysql，并重新使用root用戶登錄，驗證修改后的密碼。
[root@cloudstack Desktop]# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) [root@cloudstack Desktop]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 5 Server version: 5.1.73 Source distribution Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> exit Bye
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