DDNS not updating after host name change with same MAC address

Simon Hobson simon at thehobsons.co.uk
Fri Aug 31 09:34:44 UTC 2018

Željko Puškarić <zpuskaric at ztm.hr> wrote:

> I am having a problem with my DHCP server on Debian Stretch (ISC dhcpd version 4.3.5, BIND version 9.10.3) with updating DNS when machine which had a lease requests a new lease with different host name (when changing OS on the machine or booting it from USB). What happens is that old hostname (A record and PTR records) gets deleted as it should, but new hostname does not get written to DNS.

Post logs from DHCP and DNS servers when this happens.

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