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1.安装包准备

2.卸载自带MySQL

卸载MySQL

rpm -qa | grep -i mysql

rpm -e --nodeps  mysql-xxx

删除MySQL残留文件

find / -name mysql

rm -rf xxx

卸载MariaDB

rpm -qa | grep -i mariadb

3.安装MySQL

安装软件

rpm -ivh MySQL-server-5.6.42-1.el7.x86_64.rpm

rpm -ivh MySQL-devel-5.6.42-1.el7.x86_64.rpm

rpm -ivh MySQL-client-5.6.42-1.el7.x86_64.rpm

修改配置文件

cp /usr/share/mysql/my-default.cnf  /etc/my.cnf

vim /etc/my.cnf

[client]
password=root
port=3306
default-character-set=utf8

[mysqld]
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  

[mysql]
default-character-set = utf8 

初始化数据库

/usr/bin/mysql_install_db

service mysql start

查看root账号密码

cat /root/.mysql_secret

登陆修改密码

mysql -uroot -p密码

mysql> SET PASSWORD = PASSWORD('密码');  

mysql> exit

mysql -uroot -p密码

允许远程登陆

mysql> grant all privileges on *.* to 'root'@'%' identified by '密码';

——'root'@'%' %代表所有主机

mysql> flush privileges;

mysql> exit

设置开机自启动

chkconfig mysql on

chkconfig --list | grep mysql

 

posted on 2022-01-24 11:28  吹静静  阅读(133)  评论(0编辑  收藏  举报