Way to verify request is from nightbot

Nightbot
16

To further clarify, the intended way to verify a request is from Nightbot is to compare its reverse DNS in both directions:

$ dig A z.y.x.w.tun.nightbot.net
...
z.y.x.w.tun.nightbot.net.	300 IN	A	w.x.y.z

$ dig -x w.x.y.z
...
w.x.y.z.in-addr.arpa. 86400 IN	PTR	z.y.x.w.tun.nightbot.net.

The IPs don’t matter in question, but you want to ensure that on both sides it ends with nightbot.net

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