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Blocking Netbios Port

By Sumith ·
How I can block NETBIOS port in NT environment without using any third party software /hardware

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Blocking Netbios Port

by Alpha-Male In reply to Blocking Netbios Port

There are many, many possibilities. You'll want to block ports 137, 138 and 139 (and probably others as well...but this is for Netbios). Take a look here for some assistance:

http://www.securiteam.com/windowsntfocus/3E5PUR5QAY.html

http://mattdrury.net/showfile.asp?which=port139.txt

http://grc.com/su-firewalls.htm

http://www.xtra.co.nz/help/0,,5739-647749,00.html

http://www.labmice.net/Security/default.htm
(Firewalls, FAQs and more...great site)

Good luck...hope this helps!

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Blocking Netbios Port

by Sumith In reply to Blocking Netbios Port

The question was auto-closed by TechRepublic

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Blocking Netbios Port

by Joseph Moore In reply to Blocking Netbios Port

Go with the GRC.COM write up on how to do this for NT boxes:
http://grc.com/su-rebindingnt.htm

It is easy, and very necessary.

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Blocking Netbios Port

by Sumith In reply to Blocking Netbios Port

The question was auto-closed by TechRepublic

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Blocking Netbios Port

by Jezze In reply to Blocking Netbios Port

it depends. Do you want to block ports on a workstation or a NT server?
Is that system sharing files?
if the unswer is not. Just a stand alone worksation to surf the web disable de server service and computer browser service. A more sofisticated way is to use IPsec to block the netbios ports. Refer to the step-by-step doc at microsoft web to do that.

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Blocking Netbios Port

by Sumith In reply to Blocking Netbios Port

The question was auto-closed by TechRepublic

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Blocking Netbios Port

by Sumith In reply to Blocking Netbios Port

This question was auto closed due to inactivity

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