mysql linux远程连接问题

常用命令全在这，就不废话了

mysql 启动状态查看
service mysqld status #查看数据库状态
systemctl stop mysqld.service; #停止数据库服务
vim /ect/my.cnf #数据库配置文件
skip-grant-tables #root权限下免密码登录
update user set authentication_string = password("Mao123456") where user='root'; #重新设置密码
set global validate_password_policy=LOW;#设置密码等级
ALTER USER USER() IDENTIFIED BY 'root_2021'; #设置密码
CREATE USER 'netauth'@'%' IDENTIFIED BY 'Infosec@2020';#1.创建用户
grant all privileges on *.* to 'netauth'@'%';#2.用户授权所以数据库
flush privileges;#3.刷新 

ssh 远程连接验证
1.yum install -y openssl openssh-server
2.ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa

%对所有主机开放连接权限
select current_user() from dual;
show grants for root@'localhost';
show grants for 'root'@'%';