CentOS 7 最小化安装之后安装Mysql

1. 启动网卡
   1. 验证网络管理器和网卡接口状态

      # systemctl status NetworkManager.service

      

      # nmcli dev status

      

   2. 修改网卡配置文件

      通过上一步可以看到有两个网卡设备，eno16777984和lo，在/etc/sysconfig/network-scripts中查找以eno16777984结尾的文件，得到ifcfg-eno16777984文件。

      # vi ifcfg-eno16777984

      

      # :x

      保存退出

   3. 启动网络，激活网卡

      # /etc/init.d/network start /启动网卡

      # ifup etho /激活网卡

      # nmcli device status /查看网络连接状态

2. 拷贝rpm到服务器

   Winscp，从本地Windows机器拷贝rpm到远程服务器，包括mysql和net-tools

3. 安装mysql

   # rpm –ivh net-tools.rpm

   # rpm –ivh mysql.rpm

   

   Mysql中的lib与mariadb中的lib冲突，而postfix依赖于mariadb中的mysql-client，卸载postfix与mariadb-libs

   # rpm –e postfix.rpm

   # rpm –e mariadb-libs.rpm

   # rpm –ivh mysql.rpm mysql-client.rpm

   

1. 首次登陆mysql，并设置mysql为任意位置可访问

   # service mysql start

   # mysql –u root –p (回车后输入密码，建议从.mysql_secret文件中拷贝，手打的容易出错)

   Mysql> set password = password("123456")

   Mysql> exit;

   # mysql –u root –p (回车后输入新密码123456)

   Mysql> grant all privileges on *.* to 'root'@'%' identified by '123456' with grant option;

   Mysql> flush privileges;

   # systemctl start firewalld.service /启动firewall

   # systemctl stop firewalld.service /停止firewall

   # systemctl disable firewalld.service /禁止firewall开机启动

   # firewall-cmd --zone=public –add-port=3306/tcp –permanent /开启3306端口

   # firewall-cmd –reload /重新载入以生效

2. 使用navicat远程登陆mysql