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Closing Open Ports

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by bra-k

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How can I tell if I have open ports on my NT 4 workstations, and if I do, how do I close them. This needs to be done in order to keep out possible hackers.

Bra-k

6 replies

by mjuhrig

you can get a port scanning utility from any download site and scann your ports . also try shutting off your server service on the workstation.

by avachon

Hi, you can have your ports scanned online at gibson research: http://www.grc.com
This service will probe your ports searching for entryways. Once it's done, it shows you the results. You also can run the netstat at the command prompt (type /? fora list of the switches). The output will give you a list of active/listening ports, waitstates, etc. Hope this helps.

by avachon

Hi, as for closing ports (or blocking them from outsiders), you could install a good firewall. For personal use, zone alarms offers a free firewall (http://www.zonealarm.com). There are many firewall packages on the market, but zone alarm works well(others include black ice defender, checkpoint). Hope this helps. Gibson research also has info. on firewalls.

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