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Filtering on TCP ports

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on my win2k Server i have run Security scan tool. it says the Domain ID , Host ID can be obtained remotley. it marks this as a vulnerability & as a solution it says to perform filtering on TCP port 139 (netbios -ssn) & on port 445. how do i perform filtering on a given port ??

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Filtering on TCP ports

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In Windows 2000, Microsoft created a new transport for SMB over TCP and UDP on port 445. This replaces the older implementation that was over ports 137, 138, 139.

You can disable port 139 WINS/NetBT name resolution:
Click Start | Settings | Network and Dial-up Connections.
Click the local area connection that you want to be statically configured, and then click Properties on the File menu.
Click Internet Protocol(TCP/IP), click Properties, click Advanced, and then click the WINS tab.
Click Disable NetBIOS over TCP/IP.
Click OK, click OK, and then click OK.

Filtering on TCP ports

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Filtering on TCP ports

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