Linux下mysql的部署和安装-RPM方式
RPM方式安装MySQL5.6
a. 检查MySQL及相关RPM包，是否安装，如果有安装，则移除（rpm –e 名称）
# rpm -qa | grep -i mysql
mysql-libs-5.1.66-2.el6_3.x86_64
# yum -y remove mysql-libs*
b. 下载Linux对应的RPM包，如：CentOS6.4_64对应的RPM包，如下：
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# ll
total 74364-rw-r--r--. 1 root root 18442536 Dec 11 20:19 MySQL-client-5.6.15-1.el6.x86_64.rpm-rw-r--r--. 1 root root3340660 Dec 11 20:06 MySQL-devel-5.6.15-1.el6.x86_64.rpm-rw-r--r--. 1 root root 54360600 Dec 11 20:03 MySQL-server-5.6.15-1.el6.x86_64.rpm
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c. 安装MySQL
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# rpm -ivh MySQL-server-5.6.15-1.el6.x86_64.rpm
# rpm -ivh MySQL-devel-5.6.15-1.el6.x86_64.rpm
# rpm -ivh MySQL-client-5.6.15-1.el6.x86_64.rpm
#修改配置文件位置
# cp /usr/share/mysql/my-default.cnf /etc/my.cnf
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d. 初始化MySQL及设置密码
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# /usr/bin/mysql_install_db
# service mysql start
# cat /root/.mysql_secret#查看root账号密码
# The random password set for the root user at Wed Dec 11 23:32:50 2013 (local time): qKTaFZnl
# mysql -uroot –pqKTaFZnl
mysql> SET PASSWORD = PASSWORD('123456'); #设置密码为123456
mysql> exit
# mysql -uroot -p123456
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e. 允许远程登陆
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mysql> use mysql;
mysql> select host,user,password from user;+-----------------------+------+-------------------------------------------+
| host | user | password |
+-----------------------+------+-------------------------------------------+
| localhost | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| localhost.localdomain | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |
| 127.0.0.1 | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |
| ::1 | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |
+-----------------------+------+-------------------------------------------+
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
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f. 设置开机自启动
# chkconfig mysql on
# chkconfig --list | grep mysql
mysql 0:off 1:off 2:on 3:on 4:on 5:on 6:off
g. MySQL的默认安装位置
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/var/lib/mysql/ #数据库目录/usr/share/mysql #配置文件目录/usr/bin #相关命令目录/etc/init.d/mysql #启动脚本
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修改字符集和数据存储路径
配置/etc/my.cnf文件,修改数据存放路径、mysql.sock路径以及默认编码utf-8.
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password = 123456
port = 3306
default-character-set=utf8
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=1000
default-character-set = utf8
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查看字符集
show variables like '%collation%';
show variables like '%char%';
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