mysql 5.7.16 遠程連接

1登錄到mysql中，為root進行遠程訪問的授權，所以主機都可以鏈接

GRANT ALL PRIVILEGES ON . TO 'root'@'%'IDENTIFIED BY 'mypassword' WITH GRANT OPTION;

修改生效
mysql>FLUSH PRIVILEGES

切換到 mysql DB
mysql> use mysql;

Database changed

查看現有用戶,密碼及允許連接的主機
mysql> select user,host from user;
+------------------+-----------+
| user | host |
+------------------+-----------+
| root | % |
| debian-sys-maint | localhost |
| mysql.sys | localhost |
| root | localhost |
+------------------+-----------+

2、進入/etc/mysql/mysql.conf.d 目錄下的 mysqld.cnf 文件中需要把下面以上注釋掉，使所以主機都可以鏈接
bind-address = 127.0.0.1