sqlserver2008r2数据库使用触发器对sa及其他数据库账号访问进行IP限制

一、只允许指定IP访问数据库

创建测试账号

CREATE LOGIN testuser WITH PASSWORD = '123'

GO





CREATE TRIGGER [tr_connection_limit]

ON ALL SERVER WITH EXECUTE AS 'sa'

FOR LOGON

AS

BEGIN





--限制test这个帐号的连接

IF ORIGINAL_LOGIN()= 'test'

--允许test在本机和下面的IP登录

AND

(SELECT EVENTDATA().value('(/EVENT_INSTANCE/ClientHost)[1]', 'NVARCHAR(15)'))

NOT IN('<local machine>','192.168.50.145','192.168.8.138')

     ROLLBACK;

END;





===========================================================================================





登录信息查询

SELECT 

a.[session_id],a.[login_time],a.[host_name],

a.[original_login_name],b.[client_net_address]

FROM MASTER.sys.dm_exec_sessions a 

INNER JOIN MASTER.sys.dm_exec_connections b 

ON a.session_id=b.session_id





===========================================================================================

二、限制角色只能运行指定IP访问

--创建测试数据库

USE MASTER

GO

CREATE DATABASE Logon_DB





--创建IP过滤表

USE Logon_DB

GO

CREATE TABLE dbo.ValidIP ( 

    IP NVARCHAR(15), 

    CONSTRAINT PK_ValidIP PRIMARY KEY CLUSTERED(IP) 

); 









--插入过滤IP

USE Logon_DB

GO

INSERT INTO dbo.ValidIP(IP) VALUES('<local machine>');

INSERT INTO dbo.ValidIP(IP) VALUES('192.168.8.138');

INSERT INTO dbo.ValidIP(IP) VALUES('192.168.8.16');





--创建登录触发器



CREATE TRIGGER [tr_logon_CheckIP] 

ON ALL SERVER 

FOR LOGON 

AS 

BEGIN 

    IF IS_SRVROLEMEMBER('sysadmin') = 1 

    BEGIN 

        DECLARE @IP NVARCHAR(15); 

        SET @IP = (SELECT EVENTDATA().value('(/EVENT_INSTANCE/ClientHost)[1]', 'NVARCHAR(15)')); 

        IF NOT EXISTS(SELECT IP FROM [Logon_DB].[dbo].[ValidIP] WHERE IP = @IP) 

        ROLLBACK;

    END;

END;





这次我们在IP为：192.168.50.145的机器上进行测试，这个IP之前是允许使用rone4acc帐号登陆的（tr_connection_limit），这次使用sa这个帐号登陆，返回了Figure3的错误信息，这是因为它违反了登陆触发器tr_logon_CheckIP的规则。在192.168.8.16通过sa登录成功，说明限制生效了

三、登陆名与有效IP对应表

USE Logon_DB

GO

CREATE TABLE [dbo].[ValidLogOn](

    [Id] INT IDENTITY(1,1) NOT NULL,

    [LoginName] [sysname] NOT NULL,

    [ValidIP] [nvarchar](15) NOT NULL,

    CONSTRAINT [PK_ValidLogOn] PRIMARY KEY CLUSTERED ([Id])

 )

--创建唯一约束索引

CREATE UNIQUE NONCLUSTERED INDEX [IX_ValidLogOn_LV] ON [dbo].[ValidLogOn] 

(

    [LoginName] ASC,

    [ValidIP] ASC

)

 --插入测试数据

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'mssql2\administrator', N'<local machine>')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'<local machine>')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'127.0.0.1')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'localhost')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'192.168.50.145')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'rone4acc', N'<local machine>')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'rone4acc', N'192.168.8.16')





--创建登录触发器





CREATE TRIGGER [tr_logon_CheckLogOn]

ON ALL SERVER WITH EXECUTE AS 'sa'

FOR LOGON

AS

BEGIN

    DECLARE @LoginName sysname

    DECLARE @IP NVARCHAR(15)

    SET @LoginName = ORIGINAL_LOGIN();

    SET @IP = (SELECT EVENTDATA().value('(/EVENT_INSTANCE/ClientHost)[1]', 'NVARCHAR(15)')); 

    --判断登录名和IP

    IF NOT EXISTS(SELECT [ValidIP] FROM [Logon_DB].[dbo].[ValidLogOn] WHERE [LoginName] = @LoginName AND [ValidIP] = @IP) 

        ROLLBACK;

END;





用户登陆名与IP对应关系表[ValidLogOn]，有几点需要注意的，mssql2\administrator这个是Windows 身份验证中操作系统的帐号，你需要根据你的实际情况进行修改；IP当中你则需要注意<local machine>和127.0.0.1这些特殊的地址，我个人还是建议在这个表中加入这些信息的。

实用举例：

只允许指定IP访问

创建测试账号

CREATE LOGIN test WITH PASSWORD = '123'

GO





--创建测试数据库

USE MASTER

GO

CREATE DATABASE Logon_DB





USE Logon_DB

GO

CREATE TABLE [dbo].[ValidLogOn](

    [Id] INT IDENTITY(1,1) NOT NULL,

    [LoginName] [sysname] NOT NULL,

    [ValidIP] [nvarchar](15) NOT NULL,

    CONSTRAINT [PK_ValidLogOn] PRIMARY KEY CLUSTERED ([Id])

 )





--创建唯一约束索引

CREATE UNIQUE NONCLUSTERED INDEX [IX_ValidLogOn_LV] ON [dbo].[ValidLogOn] 

(

    [LoginName] ASC,

    [ValidIP] ASC

)

 --插入测试数据

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'mssql2\administrator', N'<local machine>')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'<local machine>')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'127.0.0.1')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'localhost')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'192.168.50.145')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'192.168.8.11')



INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'test', N'<local machine>')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'test', N'192.168.8.16')





--创建登录触发器



CREATE TRIGGER [tr_logon_CheckLogOn]

ON ALL SERVER WITH EXECUTE AS 'sa'

FOR LOGON

AS

BEGIN

    DECLARE @LoginName sysname

    DECLARE @IP NVARCHAR(15)

    SET @LoginName = ORIGINAL_LOGIN();

    SET @IP = (SELECT EVENTDATA().value('(/EVENT_INSTANCE/ClientHost)[1]', 'NVARCHAR(15)')); 

    --判断登录名和IP

    IF NOT EXISTS(SELECT [ValidIP] FROM [Logon_DB].[dbo].[ValidLogOn] WHERE [LoginName] = @LoginName AND [ValidIP] = @IP) 

        ROLLBACK;

END;





远端云服务器的配置：



列出数据库孤立用户

exec  sp_change_users_login 'report'

将用户关联起来

exec sp_change_users_login 'UPDATE_ONE','read','read'





只允许指定IP访问





--创建测试数据库

USE MASTER

GO

CREATE DATABASE Logon_DB





USE Logon_DB

GO

CREATE TABLE [dbo].[ValidLogOn](

    [Id] INT IDENTITY(1,1) NOT NULL,

    [LoginName] [sysname] NOT NULL,

    [ValidIP] [nvarchar](15) NOT NULL,

    CONSTRAINT [PK_ValidLogOn] PRIMARY KEY CLUSTERED ([Id])

 )





--创建唯一约束索引

CREATE UNIQUE NONCLUSTERED INDEX [IX_ValidLogOn_LV] ON [dbo].[ValidLogOn] 

(

    [LoginName] ASC,

    [ValidIP] ASC

)

 --插入测试数据

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'mssql\administrator', N'<local machine>')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'<local machine>')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'127.0.0.1')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'localhost')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'sa', N'192.168.1.4')

INSERT [dbo].[ValidLogOn] ([LoginName], [ValidIP]) VALUES (N'read', N'2.2.2.2')





--创建登录触发器





CREATE TRIGGER [tr_logon_CheckLogOn]

ON ALL SERVER WITH EXECUTE AS 'sa'

FOR LOGON

AS

BEGIN

    DECLARE @LoginName sysname

    DECLARE @IP NVARCHAR(15)

    SET @LoginName = ORIGINAL_LOGIN();

    SET @IP = (SELECT EVENTDATA().value('(/EVENT_INSTANCE/ClientHost)[1]', 'NVARCHAR(15)')); 

    --判断登录名和IP

    IF NOT EXISTS(SELECT [ValidIP] FROM [Logon_DB].[dbo].[ValidLogOn] WHERE [LoginName] = @LoginName AND [ValidIP] = @IP) 

        ROLLBACK;

END;