1、连上Mysql,如果Mysql不在本地,则可以用SSH连上
bash-4.2$ mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.6.37 MySQL Community Server (GPL) Copyright (c) 2000, 2017, 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>因为我这里是刚安装的,还没创建密码,所以可以直接进来 否则可以用:
# mysql -u [user] -p2、查询当前的用户,用户可登录的IP,还有用户的密码
mysql> select Host,User,Password from mysql.user; +-------------------------+------+----------+ | Host | User | Password | +-------------------------+------+----------+ | localhost | root | | | iz2ze6u0apce8jpapxeubpz | root | | | 127.0.0.1 | root | | | ::1 | root | | | localhost | | | | iz2ze6u0apce8jpapxeubpz | | | +-------------------------+------+----------+ 6 rows in set (0.00 sec) mysql>一共有5个mysql账号,Host列可以看出来,这些账号都只支持服务器本机连接,现在我们来创建一个远程用户;
mysql> create user aowei identified by 'aowei'; Query OK, 0 rows affected (0.00 sec) mysql> mysql> select Host,User,Password from mysql.user; +-------------------------+-------+-------------------------------------------+ | Host | User | Password | +-------------------------+-------+-------------------------------------------+ | localhost | root | | | iz2ze6u0apce8jpapxeubpz | root | | | 127.0.0.1 | root | | | ::1 | root | | | localhost | | | | iz2ze6u0apce8jpapxeubpz | | | | % | aowei | *52C1166B568F83580DEA51313AB855A9A26B6DAA | +-------------------------+-------+-------------------------------------------+ 7 rows in set (0.00 sec) mysql>这里我们看到,aowei这个账户是有密码了的;创建完成了,在程序里面连接发现还是没有权限,刚才我们只是创建了用户,还没有对这个用户分配权限
mysql> grant all privileges on *.* to 'aowei'@'%'identified by 'aowei' with grant option; Query OK, 0 rows affected (0.00 sec) mysql>all代表接受所有操作,比如 select,insert,delete….; . 代表所有库下面的所有表;% 代表这个用户允许从任何地方登录;为了安全期间,这个%可以替换为你允许的ip地址;
然后刷新mysql用户权限相关表
mysql> flush privileges ; Query OK, 0 rows affected (0.00 sec) mysql>这时候我们看到已经可以远程连接了:
如果还是连接不上,就看看这个 打开 mysql配置文件,是默认的3306,接着往下面看,有一个关键地方;
bind-address = 127.0.0.1这里mysql默认绑定了本地ip,不接受其他来源;注释掉,重启mysql 一切OK;