DynSite automatically updates your current dynamic IP address on one or many dynamic DNS services or by email so that anyone can contact you (in NetMeeting, CU-SeeMe, etc.) or access your FTP server or Web site on your own computer using a DNS-like address (e.g. myhost.dhs.org, where myhost is a name of your choice) which will never change instead of using your IP address that changes each time you connect.