Dns reverse lookup not updating


16-Apr-2020 21:17

(You can also set this at the DHCP server level, but check the scope property regardless—it can over-ride the server-level setting.)2.

Win 2K environments are vulnerable to a security-related mis-config re DNS/DHCP, whereby the DHCP servers lack the necessary permissions to auto-delete client DNS records.

Now all DNS queries are primarily sent to DNS server at 200::a, while the reverse DNS (r DNS) lookups are sent to 200::11. I am using this tool to generate the IPv6 zone file as well as this for further IPv6 PTR records.

These are two of the four zones configured within the “local” configuration file: This is a basic test from a Windows 7 client behind one of the user subnets on the Palo Alto.

It uses the IPv4 address of the Palo Alto layer 3 interface (192.168.125.1) for DNS queries.

I tested a normal DNS name Packet Capture), these are two screenshots from Wireshark that show the connections to the different DNS servers for the different use cases.

I am not at all sure the forward lookup zone records are updating ok but in the reverse lookup zone, new records are added but old records stay...

it is causing trouble for certain things..is generally pissing me off.aging/scavenging is set to 6hours and 7hours DNS errors are being logged.please let me know if additional information would be helpful, and i thank you for taking the time to read this and for any assistance.cheers.

dns reverse lookup not updating-84

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So, I setup VMs in Azure, promoted a VM as an Active Directory Domain Controller (Single forest/domain), installed DNS and configured a Reverse DNS zone.

Originally posted by Arbelac: Do you have scavenging turned on for the zone and for the server?



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