navicat连接linux mysql问题汇总

##连接mysql

1. 权限问题
2. 阿里云的规则
3. 防火墙
4. mysql创建用户并赋权

权限

1. 进入mysql
2. use mysql
3. update user set host = ‘%’ where user = ‘root’;
4. flush privileges;

阿里云规则

1. 定义规则，开启3306端口

防火墙

1. 永久性生效

开启：chkconfig iptables on

关闭：chkconfig iptables off

2. 即时生效，重启后失效

开启：service iptables start

关闭：service iptables stop

mysql创建用户并赋权

1. create user ‘zpc’@’%’ identified by ‘root’;
2. grant all privileges on . to zpc@’%’ identified by ‘root’;
3. flush privileges;