Dhcp server updating dns records

This even leads to pitiful situations, in which people get used to referring to computer by their IPs (or using /etc/hosts), because the DNS cannot be trusted to reflect the reality.

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This happens even though DHCP registered the record.

The great thing, is that it even works out-of-the-box on some operating systems.

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.

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