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how to close the NETBIOS serves port?

Posted on 2003-10-30
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Last Modified: 2013-12-04
hi
i made a scan to my home pc and i just found an open port .
port 139 the netbios serves
how could i close this port?
how could i know the program which open any port?
my os is windows me .
thanks in advance
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Question by:asad72
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16 Comments
 

Expert Comment

by:axel-fox
ID: 9655724
netbios port 139 is usually listening.
the netbios service resolves microsoft/windows network names.
to close that port you could use a software firewall (bad), or much better a hardware firewall.
some software-/desktopfirewalls: zone alarm, norton firewall (former at-guard)...
to see which program/service is listening or using a port you can use netstat in a 'dos box'

have a nice day,

patric schmitz
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Author Comment

by:asad72
ID: 9655917
thanks fo replay
i already use zone alarm
i heard there are softwares gives me a complet path of any hacked program netstat doesn't give me the full path
i heared that we can stop the netbios in windows2000 but how could we do that in millenuuim.
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Expert Comment

by:axel-fox
ID: 9655989
if you need the complete path try searching for files and folders.
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Expert Comment

by:Luc Franken
ID: 9656471
You can delete Netbios (it's a protocol) from network properties if you don't use it (and be sure to delete Netbios over TCP/IP also)

LucF
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Author Comment

by:asad72
ID: 9656530
i know it can't be deleted
i said if it can be disable in windows me like in windows 2000.
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Accepted Solution

by:
Luc Franken earned 45 total points
ID: 9656551
Sorry, I misread your second post.  You should try to get a hardware firewall.
btw, what utility did you use to look for open ports, or have you tried something like this:
Shields Up: https://grc.com/x/ne.dll?bh0bkyd2

LucF
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Author Comment

by:asad72
ID: 9656978
i used a scanner for this purpose.
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Expert Comment

by:Luc Franken
ID: 9657039
Glad to help..
So port 139 is closed now?
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Expert Comment

by:SteeLRasH
ID: 9677034
only you have to do is  just put thick disable netbios on TCP/IP in network communication/TCP-IP properties/Advanced/Wins.
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Author Comment

by:asad72
ID: 9677934
no lucF port 139 steal open

thanks for replay Steel_Rash but the wins option doesn't exict
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Expert Comment

by:Luc Franken
ID: 9677986
Then why did you accept my comment as an answer? Especially with an "C" grade?

You should really check zonealarm, if it can block NETBIOS if you don't use it. The best solution still is a hardware firewall, but they're pretty expensive if you want a good one.

LucF
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Expert Comment

by:SteeLRasH
ID: 9687585
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Expert Comment

by:Luc Franken
ID: 9687802
SteeLRasH,
that link is for win2k/XP, not for ME.
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Expert Comment

by:SteeLRasH
ID: 9688313
LucF you are right i am sorrry i had misread it. in 9x  it can't be easily disable the netbios as being NT, first you remove the  file and print sharing and than get a firewall (like zonealarm) and i also recommend the Kerio Personal firewall strongly. Sorry again for the misunderstanding.

Best Regards
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Expert Comment

by:egy1
ID: 9688534
i found a link for disabling net bios from the  registery
here is the link
http://support.microsoft.com/default.aspx?scid=kb;en-us;137368
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Expert Comment

by:ratzo
ID: 9745631

 FYI re: hardware firewalls.

For the past 6 months I've been using an excellent privacy protector called Alpha Shield. It's plug 'n play and requires no configurating or updating. It sits between the modem and pc and blocks out all unrequested packets, keeping you in stealth mode while on the net. It cost $140 CDN but it's a small price to pay for peace of mind. (won't work with dial-up though) Along with NAV and Adaware I've had no probs.
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