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--- fuss:isc_dhcpd [2017/12/09 10:31]
office [Get Active Leases]
+++ fuss:isc_dhcpd [2018/02/01 09:11] (current)
office [Get Active Leases]
@@ Line 300: / Line 300: @@
 </code>
+====== Force DDNS Name ======
+For dynamic DNS, ISC DHCP assigns IP addresses using names reported by the DNS client however, sometimes it is favourable to force the name to something custom using a static lease. This can be done by editing the DHCP configuration and creating a static lease with the ''ddns-hostname'' option set. For instance:
+<code>
+host test.internal {
+    hardware ethernet 7e:fb:cf:64:51:e0;
+    fixed-address 192.16.1.20;
+    ddns-hostname "me";
+}
+</code>
+will forcibly set the hostname to ''me.TLD'' (where ''TLD'' is the top level domain for which DDNS is active). If the hostname expansion is not desirable, then the full name can be spelled out and a dot appended: ''me.''.