For automatically updating dynamic hostname mappings
dy.fi supports a subset of the same NIC protocol
that is used by most other major dynamic DNS service providers.
Our update URL is
http://www.dy.fi/nic/update - if
you are behind a transparent proxy which hides your real IP address,
Please only send automatic updates when your IP address changes,
or once per 5 to 6 days to refresh the address mapping (they
will expire if not refreshed within 7 days). User accounts
which send unnecessary update requests too often will be
disabled. We have an checkip page at
(port 8180 also available).
Almost all of the available clients speak the supported NIC
protocol, but some do not allow you to configure a new
dynamic DNS service yourself - you have to use one
from the preconfigured list of services.
If you find a working Windows client (or if you have written one,
or can get one of the available ones to support dy.fi),
please let us know via the feedback page,
we would be very happy to list it here! Our
specification page should help
with the implementation.