So the same connection you use for Internet browsing
can be used to offer services to the Internet, with a few caveats:
Permanent IP address??”Each time you reboot your computer, your ISP??™s DHCP server
dynamically assigns your DSL/cable modem??™s IP address. For that reason, your IP address
could change at each reboot. If you want your servers to be reachable on a permanent
basis, you usually need at least one permanent IP address at which people can reach your
servers. You will have to ask your ISP about a permanent IP address, and it might cost
you extra money to have one.
A service called Dynamic DNS can be used in place of paying for a permanent IP
address. With Dynamic DNS, you hire a service to constantly check whether your IP
address has changed and assign your DNS hostname to the new address if it does. You can search
the Web for ???Dynamic DNS??? to find companies that offer that service.
ISP acceptable use policy??”Check that you are allowed to have incoming connections.
Some ISPs, especially for inexpensive, home-use broadband service, will block incoming
connections to Web servers or mail servers.
DNS hostname??”Although typing an IP address into a browser location box works just
fine, most people prefer to use names (such as www.
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