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Subject Author Date
Port Number Security bucrepus 12-01-2007
Posted by bucrepus on December 1, 2007, 10:08 am
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 I have a W2003 server I am trying to block access to on our LAN with a
simple Linksys wired router. I have set up the router to block ports 135-139
(TCP/UDP), 42 UDP, and 443 (TCP/UDP). If a client types \servername the
lookup fails, but if he types \server'sipaddress it prompts for login.
Which other port must I block to stop this.?
Thanks
bucrepus



Posted by Dave on November 30, 2007, 3:06 pm
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 personally i block everything, then only open the ports needed for specific
access.

>I have a W2003 server I am trying to block access to on our LAN with a
>simple Linksys wired router. I have set up the router to block ports
>135-139 (TCP/UDP), 42 UDP, and 443 (TCP/UDP). If a client types
>\servername the lookup fails, but if he types \server'sipaddress it
>prompts for login. Which other port must I block to stop this.?
> Thanks
> bucrepus
>



Posted by S. Pidgorny on December 1, 2007, 2:21 am
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445/TCP

--
Svyatoslav Pidgorny, MS MVP - Security, MCSE
-= F1 is the key =-

* http://sl.mvps.org * http://msmvps.com/blogs/sp *

>I have a W2003 server I am trying to block access to on our LAN with a
>simple Linksys wired router. I have set up the router to block ports
>135-139 (TCP/UDP), 42 UDP, and 443 (TCP/UDP). If a client types
>\servername the lookup fails, but if he types \server'sipaddress it
>prompts for login. Which other port must I block to stop this.?
> Thanks
> bucrepus
>



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