1、添加用戶

useradd mysql -s /sbin/nologin -M

2、下載解壓軟件

rz -y

tar xf mysql-5.5.32-linux2.6-x86_64.tar.gz

mv mysql-5.5.32-linux2.6-x86_64 /application/mysql-5.5.32

ln -s /application/mysql-5.5.32/ /application/mysql/

3、初始化數據庫

/application/mysql/scripts/mysql_install_db --basedir=/application/mysql/ --datadir=/application/mysql/data/ --user=mysql

4、授權MySQL管理數據庫文件

chown -R mysql.mysql /application/mysql/

5、生成MySQL配置文件

cp /application/mysql/support-files/my-small.cnf /etc/my.cnf

6、配置啟動MySQL

sed -i ‘s#/usr/local/mysql#/application/mysql#g‘ /application/mysql/bin/mysqld_safe

/application/mysql/bin/mysqld_safe & 後臺開啟mysqld服務進程

lsof -i :3306 進程已開啟

7、配置環境變量

echo $PATH

cp /application/mysql/bin/* /usr/local/sbin/

which mysql

8、配置傳統方式啟動mysqld服務

cp /application/mysql/support-files/mysql.server /etc/init.d/mysqld

sed -i ‘s#/usr/local/mysql#/application/mysql#g‘ /etc/init.d/mysqld

chmod +x /etc/init.d/mysqld

killall mysqld

lsof -i :3306 發現進程已關閉

/etc/init.d/mysqld start

lsof -i :3306 發現進程已開啟

chkconfig mysqld on 設置開機自啟動

chkconfig --list mysqld 查看開機自啟動

安全優化

1、設置mysql密碼

mysqladmin -uroot password "123456"

mysql -uroot -p123456 用密碼登錄mysql

mysql -uroot -p 進入交互式密碼登錄

更改密碼

mysqladmin -uroot -p123456 password "wuyike"

2、安全優化

刪除test數據庫

drop database test;

刪除無用用戶

select user,host from mysql.user;

drop user ‘用戶‘@‘主機名‘ 用戶大寫，特殊字符刪不了，用delete（delete from mysql.user where user="root"and host="A";）

drop user ‘root‘@‘wuyike‘;

drop user ‘root‘@‘::1‘;

drop user ‘‘@‘wuyike‘;

剩下如下用戶:

mysql> select user,host from mysql.user;

+------+-----------+

| user | host |

+------+-----------+

| root | 127.0.0.1 |

| root | localhost |

+------+-----------+

如果誤刪：

grant all on *.* to ‘root‘@localhost identified by ‘123456‘with grant option;flush privileges;

3、簡單命令

幫助：help drop;

查庫：show databases;================>ls

切庫：use mysql或別的庫名; ==========>cd

查表：show tales;

查看用戶列表：select user,host from mysql.user;

查看當前用戶：select user();=========>whoami

查看當前所在庫：select database(); =======>pwd

刪除數據庫：drop database 庫名；

刪除用戶：drop user ‘用戶‘@‘主機‘;

http://blog.csdn.net/wh211212/article/details/52856240

mysql二進制安裝