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I liken it to the days when automobiles had carburetors; a mechanic could fix most engine performance problems by fiddling with the choke—spritz a little WD-40 into the throttle body, charge and retire in the suburbs after a few years. Check the TCP/IP settings, run a few utilities to verify the zone records, charge 0 (correcting for inflation) and retire to Arizona.You’ll learn to identify the most common domain name system issues that cause problems for AD and Exchange and how to avoid them in the first place or isolate and resolve them if they occur in production.Motivation In today's dynamic R&D network environments, it's not easy to keep the DNS records up-to-date: hosts are reinstalled/renamed/added frequently, virtual machines are so easy to deploy and destroy, DHCP allocates different IPs..
However, you can set the DNS setting remotely using the netsh command line.
Still, if it doesn't, here are 3 things to care about, so to enable this feature: Note that generally this is not considered a secure setting, and it could be hardened by using key-based authentication, which I won't cover here. I'm curious about the security aspect of this model.
The way I see it, bad guys could use this to overwrite popular domain names in the DNS, if they are allowed to send DHCP requests to the same DHCP server (e.g.
The IPv4-only script and setup information is available from ISC DHCPd: Dynamic DNS updates against secure Microsoft DNS There is an alternative script that supports IPv4 and IPv6, but using the same premise as the above script is available at
The basic crux of the issue is that MS DNS uses Kerberos for authentication to update DNS records, while ISC DHCP, out of the box, supports TSIG [for BIND].