Add script WhiteListIPTable with trigger

Author: ktaranov

Scripts/WhiteListIPTable.sql

@@ -0,0 +1,59 @@
+/*
+Author: Patrick Keisler
+Original link: http://www.patrickkeisler.com/2017/05/create-whitelist-for-sql-server-updated.html
+*/
+
+USE master;
+GO
+
+IF OBJECT_ID('dbo.WhiteList') IS NOT NULL
+ DROP TABLE dbo.WhiteList;
+GO
+
+CREATE TABLE dbo.WhiteList
+(
+ Id INT IDENTITY(1,1) PRIMARY KEY
+ ,LoginName VARCHAR(255)
+ ,HostName VARCHAR(255)
+ ,HostIpAddress VARCHAR(50)
+ ,Comments VARCHAR(2000)
+);
+GO
+
+GRANT SELECT ON dbo.WhiteList TO PUBLIC;
+GO
+
+INSERT dbo.WhiteList(LoginName,HostName,HostIpAddress,Comments)
+VALUES
+ ('*','ECHOBASE1','*','Any user from the workstation "ECHOBASE1" is allowed to connect, regardless of IP address.')
+ ,('WebSiteLogin','webserver1','192.168.100.55','Only the WebSiteLogin from webserver1 with an IP of 192.168.100.55 is allowed access.');
+GO
+
+CREATE TRIGGER WhiteListTrigger
+ON ALL SERVER FOR LOGON
+AS
+BEGIN
+ DECLARE 
+ @LoginName VARCHAR(255) = ORIGINAL_LOGIN()
+ ,@HostName VARCHAR(255) = HOST_NAME()
+ ,@HostIpAddress VARCHAR(50) = CONVERT(VARCHAR(50),CONNECTIONPROPERTY('client_net_address'));
+
+ IF 
+ (
+ SELECT COUNT(*) FROM dbo.WhiteList
+ WHERE 
+ (
+ (LoginName = @LoginName) OR (LoginName = '*')
+ )
+ AND
+ (
+ (HostName = @HostName) OR (HostName = '*')
+ )
+ AND
+ (
+ (HostIpAddress = @HostIpAddress) OR (HostIpAddress = '*')
+ )
+ ) = 0
+ ROLLBACK;
+END;
+GO