how to close some ports on w2k? 2

[RFast]

hello,
I would like to know what are the methods to close
some ports manually with windows nt/w2k or to simulate
that they are closed from the net(without using a firewall).

Thank you very much.

 

[markdann]

Any ports in particular? - some are easier than others eg 139

 

[BobSchleicher]

Go to C:\WINNT\system32\drivers\etc and open the services file in notepad(don't associate it with notepad). And put a # sign in before the service/port.
example:
(enabled)
ftp 21/tcp #FTP. control
(disabled)
ftp 21/tcp #FTP. control

Hope it helps.

 

[BobSchleicher]

(disabled)
#ftp 21/tcp #FTP. control

sorry for the mistake(note the # sign)

 

[RFast]

Thank you Bob,

I tried all you said to close some ports but it seems not to work...to test it, i closed several ports(netbios, http..)but I was able to use internet afterthat, moreover, I then scanned my pc with Ciberius Internet Scanner but unfortunately the scanner could detect the open ports and gave a lot of informations...So please tell me what can I do to really close the ports i want?
thanks a lot.

 

[haslo]

Try a personal firewall like ZoneAlarm from

http://www.zonelabs.com

- this one's even free for personal use. I don't know if it can be done with the operating system itself...
There is also a difference on whether the ports are just closed or really hidden. Closed ports can still be accessed, but they reject calls. I'm not a hacker, so don't ask me how this really works - but hidden ports just let the calls that arrive for them disappear so the information seems lost to the caller - he doesn't even see there is a system at the other end... allow thyself to be the spark that lights the fire

http://www.haslo.ch