I assume you already know how to setup plain old dns aswell as plain old dhcp. Dynamic DNS is the means by which to push new records into your dns server while it is running, without having to edit any zone files.It is quite often coupled with dhcp to provide dynamic network services that have hostnames follow the appropriate machines around. To do it securely, you need to first create a secret key. For every zone you want to allow dynamic updates (for this specific key), you need to add an That's all we have to do.A user may already have a hostname registered with a name server that does not have Dynamic DNS capabilities. That makes it possible to set up a free Dynamic DNS service (using the instructions above) with a free hostname (URL) and then forward the previously-registered static hostname (URL) to the Dynamic DNS hostname (URL).Using forwarding rules, an infinite number of URLs can be forwarded to a single dynamic URL.You will always be able to access your computer even if your IP address is dynamically assigned.This is a script which checks if the IP for an interface has changed, updates namecheap.com's dynamic DNS and also sends you an email about it. A few things are hardcoded: interface name to check, email address & smtp server.
You will also be prompted for the username/password your registered with your Dynamic DNS service.DNS name servers which keep track of DNS records and exchange this information between each other to maintain consistency. a web browser) is then directed to one of these name servers.However, many home users are assigned an IP address that changes more frequently. This makes it a challenge to translate a Name to one of these IP addresses.(The primary host that resides at the destination IP address must then resolve the forwarded URLs (using virtual host or .htaccess files) and direct them to the appropriate server on the computer (or LAN).) For this reason, it is only necessary to have one dynamic DNS URL for your computer (or LAN).The period ("full stop") at the end of the URL is important to designate that the CNAME is a FQDN (fully qualified domain name). The @ symbol indicates a URL name without the first segment, e.g.