Hi all,

Please bear with me, this is my first attempt at working with DNSSEC and 
PowerDNS, and I’m working it out on a personal domain.  I have three servers 
setup - the master is running PowerDNS 4.0.3, both slaves are running nsd 
4.1.14.  When I first set this up, everything seemed to work fine and the setup 
passed the dnsviz.net tool.

Today I noticed that I was not able to resolve this domain from home, where 
unbound runs as a validating, caching server.  After some digging, dnsviz told 
me that my RRSIGs were “expired” - both from the slaves and the master.  After 
much random poking around, I could not quite figure out how to tell PowerDNS to 
periodically refresh the signed zone(s).  After manually just bumping the 
serial with "pdnsutil increase-serial example.com”, the zone started validating 
properly at dnsviz.net and at home.  Is this supposed to be automated?  What 
have I missed?

My original setup followed the “from an existing powerdns installation” here: 
https://doc.powerdns.com/md/authoritative/dnssec/#from-an-existing-powerdns-installation

Thanks,

Charles
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