port 137 UDP

kc3377 · 04-06-2007, 05:54 AM

hi i am getting hits continously on my port 137 UDP ....in the firewall...
I have a linux server in a windows network...
Can someone please tell me the importance of port 137 UDP...i know that it is a Netbios port....but will blocking it cause any harm to my system accessing the internet??

regards,
kanishk

Centinul · 04-06-2007, 05:56 AM

It shouldn't be a problem per: NetBIOS

HTH,

Centinul

kc3377 · 04-06-2007, 06:29 AM

what do you think is causing the hits anyway....even it is netbois..??

Centinul · 04-06-2007, 06:34 AM

Are these hits coming from the internet or are you part of a larger (say college campus) network? I know when I was at college I was getting hits on that port often, probably some legitimate and some not, but I didn't have any side effects when blocking it.

HTH,

Centinul

kc3377 · 04-07-2007, 01:06 AM

i am a part of a large windows network....and i am not directly connected to the internet...but through a very secure proxy and a firewall called checkpoint....

Still what is the system of netbios....?? once i did block the port 137 then i couldnt browse the internet at all...it caused a lot of problems....

regards,
kanishk