closing unwanted ports & what is --> 1720/tcp filtered H.323/Q.931

B

benpptung

Hi...I've just made a fresh install of FreeBSD 8.1 today, and not yet install any package except bash. I try nmap to scan all ports of the new installed system, and got the following messages

Code: 
Starting Nmap 5.00 ( [url]http://nmap.org[/url] ) at 2010-11-08 11:24 CST
Interesting ports on 111.222.333.444:
Not shown: 65533 closed ports
PORT     STATE    SERVICE
22/tcp   open     ssh
1720/tcp filtered H.323/Q.931

It seems H.323/Q.931 is installed by default in FreeBSD 8.1, why ?
How can I close the service?

thanks for any help.
 
That service is shown as filtered, i.e. not open.
Run this command to find out what's listening on which ports:
# sockstat -l

You might want to read [thread=4108]Unofficial FreeBSD Security Checklist / Links / Resources[/thread]
 
Savagedlight said:
That service is shown as filtered, i.e. not open.
Run this command to find out what's listening on which ports:
# sockstat -l

You might want to read [thread=4108]Unofficial FreeBSD Security Checklist / Links / Resources[/thread]
Click to expand...

Thank you for your advice.:)
 
SirDice said:
Please read the nmap(1) man page regarding filtered ports.
Click to expand...

Thank you for your advice....:)
Actually, I've figured out what happen after my post, but I don't know how to close the thread. Sorry for the question.
 
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