centos7在线安装mysql并设置远程登陆

1.下载mysql源安装包

# wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm

2.安装mysql源

# yum localinstall mysql57-community-release-el7-8.noarch.rpm

3. 检查mysql源是否安装成功

# yum repolist enabled | grep "mysql.*-community.*"

4.修改mysql-community.repo源

# vi /etc/yum.repos.d/mysql-community.repo

比如要安装5.6版本，将5.7源的enabled=1改成enabled=0。然后再将5.6源的enabled=0改成enabled=1即可。

5. 安装MySQL

# yum install mysql-community-server

6.启动MySQL服务

# systemctl start mysqld

7.查看MySQL的启动状态

# systemctl status mysqld

8.开机启动

# systemctl enable mysqld
# systemctl daemon-reload

9. 登陆到mysql,修改root本地登录密码

# mysql -uroot -p
mysql>use mysql
mysql>set password for 'root'@'localhost'=password('yourpassword');
mysql>flush privileges;

10.退出mysql

mysql>exit

11. 重启mysql

# systemctl restart mysqld

12.添加远程登录用户

mysql> use mysql;
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'yourpassword' WITH GRANT OPTION;
mysql> flush privileges;

13.设置默认编码为UTF-8忽略表名大小写

# vi /etc/my.cnf

在[mysqld]下添加下面三行代码
character-set-server=utf8
collation-server=utf8_general_ci
lower_case_table_names=1