Protorian
asked on
Open Ports.
I want to know how would I be able to close open ports on my computer.
I performed a port scan of my pc, and found serveral open and unidentified ports. And am interested in closing some of them.
Also, is there a site that I could go look at a listing for all ports and see what uses what port?
I know of the services file in Windows, but as you all know it only lists registered ports.
I once heard of a site that gave you a comprehensive list of most of the TCP and UDP ports.
I performed a port scan of my pc, and found serveral open and unidentified ports. And am interested in closing some of them.
Also, is there a site that I could go look at a listing for all ports and see what uses what port?
I know of the services file in Windows, but as you all know it only lists registered ports.
I once heard of a site that gave you a comprehensive list of most of the TCP and UDP ports.
also check out www.grc.com
shields up
and check out Zonealarm at www.zonealarm.com (free personal firewall, software)
for best results get a hardware firewall solution
shields up
and check out Zonealarm at www.zonealarm.com (free personal firewall, software)
for best results get a hardware firewall solution
ASKER
I have installed a firewall.
And have ran the sheilds up test.
I want to know how to close the open ports.
The ports are still open.
Even though they are behind the zonealarm. I did a port scan from the same computer, and saw that the ports are still open.
Is this such a hard question?
And have ran the sheilds up test.
I want to know how to close the open ports.
The ports are still open.
Even though they are behind the zonealarm. I did a port scan from the same computer, and saw that the ports are still open.
Is this such a hard question?
What ports are open? some need to be open like 80
scan your machine for viruses/trojans, as they may have opened these other ports for you
also unbind netbeui form you dialup adapter (or NIC if using dsl/cable)
disable file and printer sharing, and remove all un-needed protocols
scan your machine for viruses/trojans, as they may have opened these other ports for you
also unbind netbeui form you dialup adapter (or NIC if using dsl/cable)
disable file and printer sharing, and remove all un-needed protocols
ASKER
Ok,
Let me put it like this.
The computer in question is a server. It does nothing but run a web server, ftp server and a web based email server.
Therefore I need to have ports 80, 21, 20, 8080, 43 and 8383 open.
The computer was hit by more than one trojan virii and we have gotten rid of the virii but some of the ports are still open.
Let me put it like this.
The computer in question is a server. It does nothing but run a web server, ftp server and a web based email server.
Therefore I need to have ports 80, 21, 20, 8080, 43 and 8383 open.
The computer was hit by more than one trojan virii and we have gotten rid of the virii but some of the ports are still open.
For a web server I strongly suggest a hardware firewall solution.
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ASKER
Thank you a million..
I was able to analyze my problem and solve it.
Thankx
I was able to analyze my problem and solve it.
Thankx
anytime. glad you were able to resolve the issue.
http://www.iana.org/assignments/port-numbers
This is a list of well-known ports & their use. Start here, compare your ports to this list, then find the programs that are running & listening on those ports, and stop them.