mysql新增专给特定IP访问的用户

来源：互联网发布：第二国际知乎编辑：程序博客网时间：2024/05/15 15:35

1 新创建同时授权用户：

Sql代码

[root@XX-90 ~]# mysql -root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5386
Server version: 5.5.15-log MySQL Community Server (GPL)
Copyright (c) 2000, 2010, 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>
mysql> grant select,insert,update,delete on my_test_db.* to biao@localhost Identified by "123456";

上面的my_test_db是要授权访问到的数据库实例，biao是新用户名，123456是密码，localhost应该是数据库允许被访问的ip

2 创建用户后，可以在mysql数据库的user表看到新创建的用户信息：

Sql代码

mysql> show database;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id: 15
Current database: karaoke
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'database' at line 1
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
6 rows in set (0.00 sec)
mysql> use mysql
Database changed
mysql> show tables;
+---------------------------+
| Tables_in_mysql |
+---------------------------+
| columns_priv |
| db |
| event |
| func |
| general_log |
| help_category |
| help_keyword |
| help_relation |
| help_topic |
| host |
| ndb_binlog_index |
| plugin |
| proc |
| procs_priv |
| proxies_priv |
| servers |
| slow_log |
| tables_priv |
| time_zone |
| time_zone_leap_second |
| time_zone_name |
| time_zone_transition |
| time_zone_transition_type |
| user |
+---------------------------+
24 rows in set (0.00 sec)
mysql> select * from user where user='karaoke' \G
*************************** 1. row ***************************
Host: localhost
User: biao
Password: *E7E5651E6FD1A0960EC95E6DE3D971537515F66E
Select_priv: Y
Insert_priv: Y
Update_priv: Y
Delete_priv: Y
Create_priv: N
Drop_priv: N
Reload_priv: N
Shutdown_priv: N
Process_priv: N
File_priv: N
Grant_priv: N
References_priv: N
Index_priv: N
Alter_priv: N
Show_db_priv: N
Super_priv: N
Create_tmp_table_priv: N
Lock_tables_priv: N
Execute_priv: N
Repl_slave_priv: N
Repl_client_priv: N
Create_view_priv: N
Show_view_priv: N
Create_routine_priv: N
Alter_routine_priv: N
Create_user_priv: N
ssl_type:
ssl_cipher:
x509_issuer:
x509_subject:
max_questions: 0
max_updates: 0
max_connections: 0
max_user_connections: 0
1 row in set (0.00 sec)

如果你的结果不面上面user='biao'那样，你可以自己update这个表这段信息，如我想让这个用户只给10.11.11.11的IP访问，就update user set Host='10.11.11.11' where User='biao';

3 新增用户授权后无法使用，如ip为10.11.11.11无法使用，这里不用急，我是通过重启数据库来让它生效的：

Sql代码

#创建用户后,外面机如如还没法登陆,可以重启数据库服务:
[root@TJHY95-90 ~]# sodu service mysql restart;
-bash: sodu: command not found
[root@TJHY95-90 ~]# sudo service mysql restart;
Shutting down MySQL..... [确定]
Starting MySQL.... [确定]
[root@TJHY95-90 ~]# mysql -uroot -p

这样外面就可以访问了，如这里我指定了10.11.11.11这台机来访问，那么在这台机上使用如下访问语句:

Java代码

[root@xx11-11 ~]# hostname -i
10.11.11.11
[root@xx11-11 ~]# mysql -ukaraoke -pkaraoke -h10.11.11.142
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 17
Server version: 5.5.15-log MySQL Community Server (GPL)
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql>

这里的10.11.11.142是我们刚才数据库所在的IP。

更多参考：

mysql设置允许外部访问

配置外部访问帐号密码

本地登录mysql

Java代码

mysql -uroot -p

执行

Java代码

grant all on *.* to rails@'client_ip' identified by 'password' with grant option;

例子：所有局域网客户端都可访问

Java代码

grant all on *.* to root@'192.168.0.%' identified by 'root' with grant option;

例子：为boyu数据库设置用户boyu

Java代码

grant all on boyu.* to boyu@'192.168.0.%' identified by 'p4ssword';

app_server_id为APP应用服务器的IP

设置mysql外部能访问

/etc/mysql/my.cnf

注释到下面这行

Java代码

bind-address = 127.0.0.1

重启mysql-server

Java代码

sudo service mysql restart

及参考：

yum安装Mysql

如果在源代码编译未安装成功的情况，用yum安装是比较好的选择，特别是对新手来说，是很好的选择，安装的过程很简单，只要输入：yum -y install mysql-server ，系统自动下载和安装Mysql的，
chkconfig --add mysqld 在服务清单中添加mysql服务
service mysqld start 服务启动
mysqladmin -u root password 'newpassword' 更改密码
mysql -u root -p
mysql> DROP DATABASE test; 删除test数据库
mysql> DELETE FROM mysql.user WHERE user = ''; 删除匿名帐户
mysql> FLUSH PRIVILEGES; 重载权限