Hello, after I did update all my CentOS6 boxes - VMs and router; two of them (one VM and the router) are my local DNS resolvers; and I'm using the DNSSECTLSAvalidator plugin from nic.cz: https://www.dnssec-validator.cz/ before the update this plugin worked using my resolvers, after the update I get: "Failure - bogus DNSSEC reply, DNSSEC validation not possible with current settings" of course, when telling using a custom resolver (the one of nic.cz) it works, but before mine worked, too ... Thanks, Walter