演示环境介绍

操作系统：CentOS 6.7  (64位)

二进制包：MySQL-5.6.30-linux-glibc2.5-x86_64.tar.gz

MySQL 下载地址：http://dev.mysql.com/downloads/

1、下载MySQL

# mkdir /root/mysql

# cd /root/mysql

# wget http://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.30-linux-glibc2.5-x86_64.tar.gz

2、解压

# cd /opt/

# mkdir mysql

# cd mysql

# tar zxvf /root/mysql/mysql-5.6.30....

# ln -s /opt/mysql/mysql-5.6.30-linux-glibc2.5-x86_64 /usr/local/mysql

# cd /usr/local/mysql

3、创建用户

# groupadd mysql

# useradd -g mysql -M -s /sbin/nologin mysql

4、环境变量

# vim /etc/profile

PATH=$PATH:/usr/local/mysql

# source /etc/profile

5、创建必须的目录

/data/mysql/mysql3376/

data  数据目录

tmp　临时文件

logs　二进制日志目录

# mkdir -p /data/mysql/mysql3376/{data,tmp,logs}

6、权限

# chown -R mysql:mysql /data/mysql/mysql3376/

# chown -R mysql:mysql /opt/mysql

# chown -R mysql:mysql /usr/local/mysql

7. 创建一个配置文件

[client]

port = 3376

socket = /tmp/mysql3376.sock

# The MySQL server

[mysqld]

# Basic

port = 3376

user = mysql

basedir = /usr/local/mysql

datadir = /data/mysql/mysql3376/data

tmpdir = /data/mysql/mysql3376/tmp

socket = /tmp/mysql3376.sock

log-bin = /data/mysql/mysql3376/logs/mysql-bin

log-error = error.log

slow-query-log-file = slow.log

skip-external-locking

skip-name-resolve

log-slave-updates

8、初始化

# cd /usr/local/mysql

# ./scripts/mysql_install_db --defaults-file=/etc/my.cnf

看到两次ok

9. 启动 & 关闭

启动：

# /usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/my.cnf &

或者

# /usr/local/mysql/bin/mysqld --defaults-file=/etc/my.cnf &

关闭：

# /usr/local/mysql/bin/mysqladmin -S /tmp/mysql3376.sock shutdown

10、 安全加固

# delete from mysql.user where user!='root' or host!='localhost';

# truncate table mysql.db;

# drop database test;

# flush privileges;

怎么确认mysql是启动起来的？

A 查看进程是否存在

# ps axu |grep mysqld

B 查看端口是不是监听正确

# ss -lnpt |grep mysqld

C 看看错误日志有无异常