Anantha, Basically an open port mean that there is a service listening to that for incoming network connections. To close the port you just have to disable the service or daemon listening on that port.
A closed port means that there isnt a service or daemon listening or using the port. To open it you can install the service or daemon and configure it to listen to that port. To get the IP address of an email you simply need to look at the header of the email message. In this header you can find the mailservers it passed to get to your ISP or own mailserver. It even has the exact client which it has been send from. But this isnt always right because you can strip this information on the mailserver for possible security reasons. Regards, Brenno > -----Original Message----- > From: Anantha Krishnan [SMTP:[EMAIL PROTECTED]] > Sent: woensdag 20 maart 2002 8:23 > To: [EMAIL PROTECTED] > Subject: P > > hi all, > I want know more about the open ports and closed ports .What is > the difference between these and how can i close an open port and > open an closed port. > > Also how to know the IP address of the machine where a particaular > mail has been sent to me . > > plz clarify > > Regards > Anantha krishnan > > > _______________________________________________ > Firewalls mailing list > [EMAIL PROTECTED] > http://lists.gnac.net/mailman/listinfo/firewalls _______________________________________________ Firewalls mailing list [EMAIL PROTECTED] http://lists.gnac.net/mailman/listinfo/firewalls
