You can easily see what are the ports in use with the command:
nmap localhost
Or:
nmap <YOUR_IP>
The output can be something like:
$ nmap localhost
Starting Nmap 4.62 ( http://nmap.org ) at 2009-01-19 23:45 EET
Interesting ports on localhost (127.0.0.1):
Not shown: 1711 closed ports
PORT STATE SERVICE
25/tcp open smtp
80/tcp open http
111/tcp open rpcbind
113/tcp open auth
Nmap done: 1 IP address (1 host up) scanned in 0.066 seconds
To close a port, you can use the following command as root:
fuser -k 80/tcp
Which will close port 80 (used by the web server).Source URL: http://ashesgarrett.blogspot.com/2009/01/tip-of-day-easily-close-port-in-linux.html
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nmap localhost
Or:
nmap <YOUR_IP>
The output can be something like:
$ nmap localhost
Starting Nmap 4.62 ( http://nmap.org ) at 2009-01-19 23:45 EET
Interesting ports on localhost (127.0.0.1):
Not shown: 1711 closed ports
PORT STATE SERVICE
25/tcp open smtp
80/tcp open http
111/tcp open rpcbind
113/tcp open auth
Nmap done: 1 IP address (1 host up) scanned in 0.066 seconds
To close a port, you can use the following command as root:
fuser -k 80/tcp
Which will close port 80 (used by the web server).Source URL: http://ashesgarrett.blogspot.com/2009/01/tip-of-day-easily-close-port-in-linux.html
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