how to close a open port?

prakash0106 · 01-31-2009, 02:23 AM

how to close a open port?

how to open a closed port

win32sux · 01-31-2009, 03:40 AM

prakash0106, I've moved your post to a thread of its own. A port is opened when a process listens on it (it is closed when nothing is listening). So the answer to your question is: You close a port by stopping whatever process is listening on it.

rhesa · 01-31-2009, 07:41 AM

I have example for you.
we want open port 80 (http)
we can using /etc/init.d/httpd start
or /etc/init.d/httpd stop

thank you.

Udi · 01-31-2009, 11:52 AM

If you mean closing/opening ports in the firewall - use gufw to configure what you want.

prakash0106 · 02-02-2009, 01:39 AM

i need command for closing open port also open closed port

pls not use iptables......... i need only command like nmap(port listening)

win32sux · 02-02-2009, 02:10 AM

Quote:

Originally Posted by prakash0106

i need command for closing open port also open closed port

pls not use iptables......... i need only command like nmap(port listening)

prakash0106, AFAICT, your question has already been answered. You open a port by making a process listen on it. You close a port by making sure nothing is listening on it. Nmap has nothing to do with any of this, other than it's a tool you can use to make sure the port in question appears as open or closed.