Possible DNS-rebind attack detected what is it?

Question

linux

I raised a mobile proxy on the firmware of the openwrt router, when I start working with insta in the logs I see this regularly only with a different link at the end. What does this mean and is it necessary to add something like this to the whitelist?
Sat Dec 7 14:22:03 2019 daemon.warn dnsmasq[1317]: possible DNS-rebind attack detected: instagram.fdnk1-1.fna.fbcdn.net
Sat Dec 7 14:22:03 2019 daemon.warn dnsmasq[1317 ]: possible DNS-rebind attack detected: instagram.fdnk1-1.fna.fbcdn.net

Answer 1

An attempt to change DNS is detected, but the router beats it off.
You don't have to add it to the whitelist, of course.