linux下安装mysql

a、从mysql官网下载linux对应的三个文件

MySQL-server-5.6.30-1.el6.x86_64.rpm
MySQL-devel-5.6.30-1.el6.x86_64.rpm
MySQL-client-5.6.30-1.el6.x86_64.rpm

b、检查mysql是否已经安装，如果有安装则删除

[root@localhost ~]# rpm -qa | grep -i mysql
[root@localhost ~]# yum -y remove mysql-libs*

c、安装mysql

[root@localhost rpm]# rpm -ivh MySQL-server-5.6.30-1.el6.x86_64.rpm
[root@localhost rpm]# rpm -ivh MySQL-devel-5.6.30-1.el6.x86_64.rpm
[root@localhost rpm]# rpm -ivh MySQL-client-5.6.30-1.el6.x86_64.rpm

d、修改mysql配置文件的位置

[root@localhost rpm]# cp /usr/share/mysql/my-default.cnf /etc/my.cnf

e、初始化mysql和设置密码

[root@localhost rpm]# /usr/bin/mysql_install_db
[root@localhost rpm]# service mysql start
#查看root账号密码
[root@localhost rpm]# cat /root/.mysql_secret  
# The random password set for the root user at Wed Dec 11 23:32:50 2013 (local time): YsFtYd
[root@localhost ~]# mysql -uroot –YsFtYd

#设置密码为root mysql> SET PASSWORD = PASSWORD('root); mysql> exit [root@localhost ~]# mysql -uroot -proot

f、远程登录用户设置

mysql> select host,user,password from user;
+-----------------------+------+-------------------------------------------+
| host                  | user | password                                  |
+-----------------------+------+-------------------------------------------+
| localhost             | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
| localhost.localdomain | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
| 127.0.0.1             | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
| ::1                   | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
+-----------------------+------+-------------------------------------------+
mysql> update user set password=password('123456') where user='root';
mysql> update user set host='%' where user='root' and host='localhost';
mysql> flush privileges;
mysql> exit

g、设置开机启动

[root@localhost ~]# chkconfig mysql on
[root@localhost ~]# chkconfig --list | grep mysql
mysql    0:off   1:off   2:on    3:on    4:on    5:on    6:off

h、mysql的默认安装位置

#数据库目录
/var/lib/mysql/
#配置文件目录
/usr/share/mysql
#相关命令目录
/usr/bin
#启动脚本
/etc/init.d/mysql

i、修改字符集

[root@localhost /]# vi /etc/my.cnf

[client]
password=root
port=3306
default-character-set=utf8
[mysqld]
port=3306
character_set_server=utf8
character_set_client=utf8
collation-server=utf8_general_ci
#(注意linux下mysql安装完后是默认：表名区分大小写，列名不区分大小写； 0：区分大小写，1：不区分大小写)
lower_case_table_names=1
#(设置最大连接数，默认为 151，MySQL服务器允许的最大连接数16384; )
max_connections=151
[mysql]
default-character-set = utf8

j、远程连接mysql设置

①授权
[root@localhost /]# mysql -uroot -proot
mysql> use mysql;
mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '这里是你的密码' WITH GRANT OPTION;

②关闭防火墙
#关闭命令
[root@localhost /] service iptables stop 
#永久关闭防火墙
[root@localhost /] chkconfig iptables off 

至此mysql就安装完成并配置完成

　　

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