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DDNS and DHCP are complementary services. DHCP doles out the addresses and DNS helps you find the address.

The ISC is also implementing a DHCP server for UNIX systems. As I write this, DHCP 2.0 is the production version and in common use. DHCP 3.0 is in beta. The 2.0 distribution does not support dynamic DNS updates. The 3.0 beta does support dynamic updates but the documentation carries big warnings about not being final, so use it at your own peril and only if you need the features. But a production release might be available by the time you read this. As with BIND, you can get DHCP from the ISC ftp site: ftp://ftp.isc.org/isc/dhcp/. See its Web site at http://www.isc.org/products/DHCP/ for more information about the available releases, their status, and features. I will not even try to describe the design, implementation, and usage issues connected with DHCP; I will simply discuss some DHCP/DNS integration issues. Please see The DHCP Handbook for more complete information about DHCP, both the standard and the implementation.


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