Wednesday, February 28, 2018

DHCP not updating DNS

Any help would be appreciated.

Currently we have an embedded linux device that needs to register on our DNS. Our server is windows server 2012 running both the DHCP and DNS. I am aware that DNS will only update the DNS with incoming request sent from Windows machines. That being said we have already made the changes to the DHCP scope to "Dynamically update the DNS table: Always dynamically update DNS A and PTR records" as well as "Dynamically update DNS A and PTR records for DHCP clients that do not request updates (for example, clients running Windows NT 4.0)". After doing that we have even tried changing the DNS to accept unsecure/secure dynamic updates. However, that too did not work.

Manually creating static entries in the DNS is NOT an option as these linux devices are suppose to be unattended. Any thoughts?



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