Listing Used Ports

BorgKiller · 04-13-2005, 11:21 PM

Hello All,

I am currentally in the proccess of installing a firewall onto my server. The problem is, I dont know which ports are currentally in use. Is there anyway I can get a list of what ports are in use on my system?

In my network, we have a server (Linux Redhat 9) and a client (My fathers computer). I dont know what ports my fathers computer uses so i need ot find out what ports he is using.

Thanks for your help,
BorgKiller

Capt_Caveman · 04-13-2005, 11:34 PM

netstat -pantu will show you what ports are in use locally. You can use nmap to determine ports are open on a remote system, though ideally you'd want to check locally as firewalls can obscure results. If your father is using Windows, then checkout fport .

BorgKiller · 04-13-2005, 11:44 PM

Thanks, I will try that when i get home.