对于Mac上Homebrew安装的MySQL，默认情况下只能使用本地登录。
而使用其它主机远程登录Mac上的MySQL则会被拒绝访问。
下面修改MySQL的相关配置并使其能被远程主机访问。
1. 登录MySQL
mysql -u root -p -D mysql
2. 修改user表中root用户的Host值
update user set host='%' where user='root';
查看下修改情况：
mysql> select user,host from user; +------------------+-----------+ | user | host | +------------------+-----------+ | root | % | | mysql.infoschema | localhost | | mysql.session | localhost | | mysql.sys | localhost | +------------------+-----------+ 4 rows in set (0.00 sec)
3. 刷新权限
flush privileges;
4. 退出MySQL
exit
5. 修改MySQL服务绑定的IP
对于Homebrew安装的MySQL，默认的配置文件路径是/usr/local/etc/my.cnf：
# Default Homebrew MySQL server config [mysqld] # Only allow connections from localhost bind-address = 127.0.0.1 mysqlx-bind-address = 127.0.0.1
将bind-address值修改为0.0.0.0：
# Default Homebrew MySQL server config [mysqld] # Only allow connections from localhost bind-address = 0.0.0.0 mysqlx-bind-address = 127.0.0.1
6. 重启MySQL服务
brew services restart mysql
💡如果brew重启失败，有以下两种解决方案：
进入/usr/local/Cellar/mysql/
/bin目录下，使用mysql.server restart命令重启MySQL。注意”version”是你Mac上安装MySQL的版本号，请根据实际安装版本号来替换 可以选择重启Mac来达到重启MySQL服务的目的。重启Mac后，如果没有设置MySQL服务自启动，需要手动拉起MySQL服务：mysql.server start
验证
$ mysql -u root -p -h 192.168.0.100 Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 12 Server version: 8.0.21 Homebrew Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql>
远程登录成功。
以上为个人经验，希望能给大家一个参考，也希望大家多多支持IT俱乐部。
