解决限制访问SQL Server的IP地址的办法
我们只想使某个IP的计算机才能连接到SQLServer服务器,不允许其他客户端连接,怎么操作呢? 解决方法:可以直接在防火墙中做限制,只允许与指定的IP地址建立1433的通讯。当然,从更为安全的角度来考虑,应该把1433端口改成其他的端口。 其他解决方法1(限从
我们只想使某个IP的计算机才能连接到SQLServer服务器,不允许其他客户端连接,怎么操作呢?
解决方法:可以直接在防火墙中做限制,只允许与指定的IP地址建立1433的通讯。当然,从更为安全的角度来考虑,应该把1433端口改成其他的端口。
其他解决方法1(限从指定IP接入的客户端):如果使用SQLServer2005,还可以通过端点限制的方法来实现,,此方法要求一块专门的网卡,所有可以连接SQLServer的客户端均通过此网卡接入(假设此网卡的IP是192.168.1.1):
1.在“SQL Server配置管理器”的“SQLServer2005网络配置中”,禁止除TCP/IP之外的所有协议;
2.使用如下的T-SQL禁止默认的TCP端点
!--
Code highlighting produced byActiproCodeHighlighter(freeware)
--> ALTER ENDPOINT [TSQL Default TCP]
STATE = STOPPED
3.使用如下的T-SQL建立新的TCP端点和授权
!--
Code highlighting produced byActiproCodeHighlighter(freeware)
--> USE master
GO
-- 建立一个新的端点
!--
Code highlighting produced byActiproCodeHighlighter(freeware)
--> CREATE ENDPOINT [TSQL User TCP]
STATE = STARTED
AS TCP(
LISTENER_PORT = 1433,
LISTENER_IP = (192.168.1.1) -- 侦听的网络地址
)
FOR TSQL()
GO
-- 授予所有登录(或者指定登录)使用此端点的连接权限
!--
Code highlighting produced byActiproCodeHighlighter(freeware)
--> GRANT CONNECT ON ENDPOINT::[TSQL User TCP]
TO [public]
完成上述配置之后,只有通过网络地址配置为192.168.1.1的网卡接入的客户端才能访问SQLServer;另外,如果只授予指定登录对端点的连接权限,则只有指定的登录才能接入SQLServer实例。
其他解决方法2(限指定IP的客户端接入)
当SQL Server 2005升级到SP2或者更高的版本的时候,还可以通过新增的触发器来实现控制。
执行下面的T-SQL后,将使除IP地址为192.168.1.1之外的客户端连接失败。
!--
Code highlighting produced byActiproCodeHighlighter(freeware)
--> USE master
GO
CREATE TRIGGER tr_LoginCheck
ON ALL SERVER
FOR LOGON
AS
ROLLBACK TRAN
GO

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