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<LI class=title><A href="http://www.dyndns.com/developers/">Developers'
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<LI class=first id=currentnav><A
href="http://www.dyndns.com/developers/specs/">DNS Update API</A>
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Diagram</A>
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Change</A>
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href="http://www.dyndns.com/developers/specs/syntax.html">Perform Update</A>
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<H2>DNS Update API</H2>
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<H4 style="MARGIN-TOP: 3px">DNS Update Specification</H4><A
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style="PADDING-TOP: 3px" alt="Download NIC Update DDNS Specification"
src="DynDNS -- Developers -- DNS Update API.files/pdf.png"> </A>
<P><A href="http://www.dyndns.com/developers/specs/dns-update-api.pdf">Download
Now</A> </P></DIV></DIV>
<P>The DNS Update API is also known as the Members NIC Update API and is used to
update the IP addresses of dynamic DNS hostnames. DynDNS designed and created
the specification prior to 2001 which has become the standard update mechanism
for other DNS providers. The API works over HTTPS and HTTP.</P>
<UL>
<LI><A href="http://www.dyndns.com/developers/specs/flowdiagram.html">Flow
Diagram</A> - Complete DNS update loop
<LI><A href="http://www.dyndns.com/developers/specs/detectip.html">Detect IP
Change</A> - Reference to detect IP changes
<LI><A href="http://www.dyndns.com/developers/specs/syntax.html">Perform
Update</A> - Reference to perform updates
<LI><A href="http://www.dyndns.com/developers/specs/return.html">Process
Return</A> - Reference to process return codes
<LI><A
href="http://www.dyndns.com/developers/specs/policies.html">Policies</A> -
Rules clients must follow
<LI><A
href="http://www.dyndns.com/developers/specs/guidelines.html">Guidelines &
Notes</A> - Helpful guidelines and notes
<LI><A href="http://www.dyndns.com/developers/specs/blocks.html">Client
Blocks</A> - What happens when things go wrong </LI></UL>
<P>As this update mechanism has been integrated into numerous products, any
changes to the API will be completely backwards compatible.</P>
<P>Developers who have integrated the DNS Update API into their devices are
encouraged to enhance their products through the <A
href="http://www.dyndns.com/developers/certified/">DynDNS Certified
Program</A>.</P>
<P>DynDNS also offers <A
href="http://www.dyndns.com/developers/privatelabel/">Private Label DynDNS</A>
for developers and companies looking for an integrated DNS
platform.</P></DIV><BR clear=all><!--htdig_noindex-->
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