At 18:15 6/12/2003, Kirk Friggstad wrote:
>For another example (just discovered this today at
>http://www.mynetwatchman.com/kb/security/ports/17/137.htm - scroll down to
>the "False Positives" section at the end) - on a Windows web server, if
>Netbios is bound to the public IP address of the server, IIS will attempt to
>do a direct Netbios query back to the client if RDNS fails. This causes (a)
>unnecessary network traffic and (b) false alarms on firewalls, etc. Which
>reminds me - I need to check on my Netbios bindings on my Windows boxes...

This is a well-known issue in the security community. It's also one of the 
reasons why NetBIOS ports are so often blocked at border routers...:) 


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