mysql开启远程连接

出发点

由于桥梁项目需要用到MySQL数据库，想着自己实验室服务器的MySQL已经装好了，就安装Navicat准备远程连接，通过shell进行连接发现运行正常

mysql -u root -p

但是使用Navicat连接时出现错误，拒绝连接，于是想到可能MySQL不允许远程登录

开启远程IP登录许可

sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf

将bind-address = 127.0.0.1前面加上#

lc-messages-dir = /usr/share/mysql
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
# bind-address          = 127.0.0.1

之后重启MySQL即可

/etc/init.d/mysql restart

添加用户

开启远程登录之后发现出现了新的错误：... is not allowed to connect to this MySql server
于是通过shell登录MySQL，依次执行以下命令

use mysql;
update user set host=’%’ where user=’root’;

遂远程连接成功