Dhcp server not updating dns records
Q: Does setting DNS dynamic update credentials on DHCP achieve the same result as adding a DHCP server to the Dns Update Proxy group?A: The short answer is no; however, it's important to step back and understand how DNS interacts with DHCP regarding dynamic updates, then look at what each of the two actions mentioned in the title actually does—namely, setting DNS dynamic update credentials on DHCP and adding a DHCP server to the Dns Update Proxy group.We have multiple hosts as of late that sucessfully pull a DHCP address and are domain machines that there is no A record being created for the host.I can do a reverse lookup on the IP and that works but not name to IP. Hi Community, my SG300 is configured in L3 Mode in my Homelab and the DHCP Server feature is enabled. As DNS Server I've configured a bind9 server under raspbian wheezy. I was trying to configure this in my lab and was getting unexpected GUI input results that did not affect the packets at all.
The default setting appears to be Dynamically update DNS A and PTR records only if requested by the DHCP clients.
Network cards are configured to ' Register this connections addresses in DNS'.
I think the main reason that I didn't just leave DHCP to the router was because of this issue where DNS on the server doesn't seem to get updated with the latest IP number.
Those records have an ACL on them to stop registered records from being hijacked by other hosts.
When DHCP is used to allocate IP addresses, the default configuration is shown below—which tells the DHCP server to register records in DNS on behalf of clients only if requested to do so by the client or if the client is unable to dynamically register (e.g., Windows NT 4.0).