Dhcp server not updating dns records
The bind9 is configured to allow dynamic updates and DNS works like expected. :-) Looking forward to hearing from you because this makes me crazy. Checked with my contacts and they let me know that option 81 is not supported on this switch.
Manually by using NSUPDATE I can make dynamic updates to the bind9 zones from my DHCP clients. I want that the SG300 DHCP Server makes the dynamic updates to the DNS zones. Since the client sends to the server on how to update DNS records, the switch does not support this dynamic configuration.
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.
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.
(This is under ) Is there a downside to selecting Always dynamically update DNS A and PTR records?
What's the difference between that and Dynamically update DNS A and PTR records for DHCP clients that do not request updates (for example, clients running Windows NT 4.0)? The NT 4.0 example isn't so relevant these days, so consider a mixed environment where you have Windows and Mac (or Linux) clients.
I can do a reverse lookup on the IP and that works but not name to IP. What DNS server are the clients configured with when the router gives them a DHCP lease?And are they configured to send DNS updates in their network adapter settings?Dynamic DNS is a feature that allows hosts to register their records in DNS, thus removing the need for administrators to manually create records.In addition, Secure Dynamic Update can be required for zones that are Active Directory-integrated (and should be required, per best practices), which allows only members of the Authenticated Users group to register records.