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