[Pdns-users] PDNS recursor cache sync

Djerk Geurts djerk at maizymoo.com
Sat Sep 17 00:01:09 UTC 2022

Just ran into an issue with recursive DNS servers where the two servers have cached a different A record for mirror.centos.org.

This is a problem as the firewalls permit access to the FQDN, which presumes that both the client and the firewall end up with the same A record for the domain.

I'm intending to swap these recursors out with PowerDNS servers, but am wondering if there's a way to keep the record cache in sync between multiple recursors.

Best regards,
Djerk Geurts
m: +44-7535-674620

Maizymoo Ltd
VAT No: GB192 1529 07
Registration Number: 6638104 (registered in England and Wales)​
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