Reverse DNS not working @ KnownHost?

Ohh...

This morning, I've found out that my PTR record were not working anymore on my VPS. I dig a little bit to found out that many of reverse DNS from KnownHost are not working neither.

The rDNS cannot be down: This is used when sending emails. I've used https://talosintelligence.com/ and many of IP's in my range lost rDNS also (trust me I know my neighbors around my IP range ;))

Even the Reverse DNS in the client area is just a blank page.

o_O
 

KH-Jonathan

Director of Managed Services
Staff member
Hi @Jean Boudreau! Thanks for catching this.

We were moving DNS servers around a bit (to the new facility in Atlanta) and took the primary offline which shouldn't have been a big deal, except that we had the DNS port firewalled off on the secondary so no one could make requests against it.

It's been remedied now :)
 
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