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Forgot to CC the list. Duh. Regards, Derek ---------- Forwarded message --------- From: Derek Cramer <cramerd at gmail.com> Date: Thu, 21 May 2020 at 12:20 Subject: Re: [Samba] DHCP Updates to DNS - Multiple Entries with Same IP To: <mark.petersen at markofall.com> I had exactly the same issue with dual dhcp servers. I solved it by modifying the script to do conditional updates. I.e. only add the A/PTR entries if they are not already present. This works for me, but I have no idea if this is best practice for Active Directory. I suppose a race condi...

Thank you to Rowland, L.P.H. van Belle, the entire samba team, and others that help. I've been running samba in our fire department for over a year. I'm running a self compiled samba version 4.11.9, bind version 9.11.3, BIND9_DLZ, isc-dhcp-server version 4.3.5 with fail over (between the 2 DC's) on Ubuntu 18.04 on Odroid N2 aarch64. I have 2 identical DC's on the network FDDC10

I have a domain with 2 domain controllers. They were both running 4.17.10. I needed to upgrade the operating system on the computers so I did the following: * Added a 3rd domain controller with samba 4.18.5 * Demoted 1 of the 4.17 computers and cleaned all remnants via Windows AD Users & Computers, AD Sites and Services, and DNS Manager. * I did a wipe and installation of Debian 12,