Michael L Torrie wrote:

On Tue, 2005-07-05 at 15:11 -0600, Andrew McNabb wrote:
Thanks for the clarification on dynamic DNS (from you and Michael).  In
the past, I've always done DDNS on the client side.

Interesting.  I'm not sure dynamic dns is possible client side.  Dynamic
DNS was first pushed by microsoft, if I recall, and it involves updates
to the DNS pushed by the dhcpd server, using information it received in
the dhcp request from the client.  This is the reason, for example, that
the Fedora Core installer lets you either supply DHCP with a hostname or
just take the hostname provided by dhcp (you almost always should enter
a hostname when DDNS is configured).  Either way the dhcp server pushes
the info to the DNS server.  Thus I don't think that whatever you are
doing is really Dynamic DNS.

Dynamic DNS can be done both server side and client side. Typically a DHCP server will perform the update on the ptr record since it controls the IP address. Deciding who should do the A record update is up to the admin... and how your going to allow updates on the DNS server. Either by key, or address range... RFC 2136 explains it fully :)
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