# 首先應該刪除 CentOS 中自帶的 MySQL 安裝包, 不然安裝時會報錯 [root@node1 /]# rpm -qa | mysql # 查詢全部自帶包中的 MySQL 安裝包, 參數q: query查詢, 參數a: all mysql-libs-5.1.66-2.el6_3.i686 # 查詢結果 [root@node1 /]# rpm -e mysql-libs-5.1.66-2.el6_3.i686 # 這時候刪除依然報錯 error: Failed dependencies: # 這是由於依賴包的緣故 libmysqlclient.so.16 is needed by (installed) postfix-2:2.6.6-2.2.el6_1.i686 libmysqlclient.so.16(libmysqlclient_16) is needed by (installed) postfix-2:2.6.6-2.2.el6_1.i686 mysql-libs is needed by (installed) postfix-2:2.6.6-2.2.el6_1.i686 [root@node1 /]# rpm -ef mysql-libs-5.1.66-2.el6_3.i686 --nodeps # 使用強制刪除, 參數e: erasure擦除, 參數--nodeps: 強制解除依賴 [root@node1 /]# rpm -qa | mysql -bash: mysql: command not found # 這時候再查詢 MySQL 安裝包, 發現已經被刪除了 [root@node1 /]# rpm -ivh MySQL-server-5.1.73-1.glibc23.i386.rpm # 安裝本身的 MySQL, 參數i: install安裝, 參數v: 顯示安裝詳細信息, 參數h: 顯示安裝進度 Preparing... ########################################### [100%] 1:MySQL-server ########################################### [100%] 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 node1 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. Please report any problems with the /usr/bin/mysqlbug script! Starting MySQL. SUCCESS! [root@node1 /]# rpm -ivh MySQL-client-5.1.73-1.glibc23.i386.rpm # 安裝 MySQL 的client, 參數i: install安裝, 參數v: 顯示安裝詳細信息, 參數h: 顯示安裝進度 Preparing... ########################################### [100%] 1:MySQL-client ########################################### [100%] [root@node1 /]# /usr/bin/mysql_secure_installation # 初始化 MySQL 配置 NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY! In order to log into MySQL to secure it, we'll need the current password for the root user. If you've just installed MySQL, and you haven't set the root password yet, the password will be blank, so you should just press enter here. Enter current password for root (enter for none): # 直接回車 OK, successfully used password, moving on... Setting the root password ensures that nobody can log into the MySQL root user without the proper authorisation. Set root password? [Y/n] Y # 設置root用戶密碼 New password: # 輸入要設置的root用戶密碼 Re-enter new password: # 確認密碼 Password updated successfully! Reloading privilege tables.. ... Success! By default, a MySQL installation has an anonymous user, allowing anyone to log into MySQL without having to have a user account created for them. This is intended only for testing, and to make the installation go a bit smoother. You should remove them before moving into a production environment. Remove anonymous users? [Y/n] Y # 移除匿名用戶 ... Success! Normally, root should only be allowed to connect from 'localhost'. This ensures that someone cannot guess at the root password from the network. Disallow root login remotely? [Y/n] n # 容許root用戶遠程登陸 ... skipping. By default, MySQL comes with a database named 'test' that anyone can access. This is also intended only for testing, and should be removed before moving into a production environment. Remove test database and access to it? [Y/n] n # 不移除 MySQL 自帶的test database ... skipping. Reloading the privilege tables will ensure that all changes made so far will take effect immediately. Reload privilege tables now? [Y/n] Y # 刷新 MySQL 的權限 ... Success! Cleaning up... All done! If you've completed all of the above steps, your MySQL installation should now be secure. Thanks for using MySQL! # (執行下面的語句: *.*: 全部庫下的全部表 xxx.xxx.xxx.xxx: 這個指定的IP地址能夠鏈接MySql) mysql> [root@node1 /]#mysql -uroot -p mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'xxx.xxx.xxx.xxx' IDENTIFIED BY '密碼' WITH GRANT OPTION; mysql> FLUSH PRIVILEGES;