mysql建立遠程用戶並受權

mysql建立遠程用戶並受權

今天須要在本地測試系統功能，由於本地沒有數據庫，就須要在程序裏面鏈接遠程數據庫；

先用ssh登陸遠程服務器，用root連上數據庫看看狀況；

mysql> select Host,User,Password from mysql.user;
+----------------+------------------+-------------------------------------------+
| Host           | User             | Password                                  |
+----------------+------------------+-------------------------------------------+
| localhost      | root             | *836E233974EBE6EA32F95F890A91363F8427F78B |
| win_srv1       | root             | *836E233974EBE6EA32F95F890A91363F8427F78B |
| 127.0.0.1      | root             | *836E233974EBE6EA32F95F890A91363F8427F78B |
| ::1            | root             | *836E233974EBE6EA32F95F890A91363F8427F78B |
| localhost      | jsjks            | *1460ED3535ABDBB887F9E5F57F40A2354610CDF3 |
+----------------+------------------+-------------------------------------------+
5 rows in set (0.00 sec)

一共有5個mysql帳號，Host列能夠看出來，這些帳號都只支持服務器本機鏈接，如今咱們來建立一個遠程用戶；

create user test identified by '123@456';

+----------------+------------------+-------------------------------------------+
| Host           | User             | Password                                  |
+----------------+------------------+-------------------------------------------+
| localhost      | root             | *836E283974EBE6EA32F95F890A91363F8427F78B |
| win_srv1       | root             | *836E283974EBE6EA32F95F890A91363F8427F78B |
| 127.0.0.1      | root             | *836E283974EBE6EA32F95F890A91363F8427F78B |
| ::1            | root             | *836E283974EBE6EA32F95F890A91363F8427F78B |
| localhost      | jsjks            | *1460ED35E5ABDBB887F9E5F57F40A2354610CDF3 |
| %              | test             | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
+----------------+------------------+-------------------------------------------+
6 rows in set (0.00 sec)

建立完成了，在程序裏面鏈接發現仍是沒有權限，剛纔咱們只是建立了用戶，尚未對這個用戶分配權限；

grant all privileges on *.* to 'test'@'%'identified by '123@456' with grant option;

 

all表明接受全部操做，好比 select,insert,delete....; *.* 表明全部庫下面的全部表;% 表明這個用戶容許從任何地方登陸；爲了安全期間，這個%能夠替換爲你容許的ip地址；

而後刷新mysql用戶權限相關表；

flush privileges ;

 

我覺得就此收工了，等等，程序怎麼仍是連不上去，仍是 access deny ;

難道端口不是3306嗎，打開 mysql配置文件，是默認的3306，接着往下面看，發現一個關鍵地方；

bind-address           = 127.0.0.1

 

原來這裏mysql默認綁定了本地ip，不接受其餘來源；註釋掉，重啓mysql 一切OK；

還有兩個經常使用操做；

修改指定用戶密碼

update mysql.user set password=password('新密碼') where User="test" and Host="localhost";

 

刪除用戶

delete from user where User='test' and Host='localhost';