MySQL5.6安裝

1、下載Mysql
官網(wǎng)自行下載（二進(jìn)制包）。

2、解壓
cd /opt
mkdir mysql
cd mysql
tar zxvf /path/mysql-5.6........
ln -s /opt/mysql/mysql-5..... /usr/local/mysql
3、創(chuàng)建用戶

 groupadd mysql
 useradd -g mysql  -s  /sbin/nologin -d /usr/local/mysql/  -M mysql

4、環(huán)境變量

echo $PATH
echo PATH=$PATH:/usr/local/mysql/bin >>/etc/profile
source /etc/profile
==============啟動起來==================
5、創(chuàng)建必須的目錄
/data/mysql/mysql3306/
data
tmp
logs
mkdir -p /data/mysql/mysql3306/{data,tmp,logs}

6、權(quán)限
chown -R mysql:mysql /data/mysql/mysql3306/
chown -R mysql:mysql /opt/mysql

7、創(chuàng)建一個配置文件

socket = /tmp/mysql3306.sock
innodb_data_file_path = ibdata1:100M:autoextend

8、初始化
cd /usr/local/mysql
./scripts/mysql_install_db --defaults-file=/etc/my.cnf
看到兩次ok

9、啟動
/etc/init.d/mysql start or service mysql start
/usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/my.cnf &
/usr/local/mysql/bi
n/mysqld --defualts-file=/etc/my.cnf &

10、安全加固
delete from mysql.user where user!='root' or host!='localhost';
truncate table mysql.db;
drop database test;

A 查看進(jìn)程是否存在
ps aux | grep mysqld

B 查看端口是不是監(jiān)聽正確
netstat -nalp | grep mysqld

ss -lnpt | grep mysqld
C 看看錯誤日志有無異常
vim shift+g
tail