From Fedora Project Wiki

relation to dnssec-trigger(d)?

what's the relation to dnssec-triggerd?

Running DNS server

How will this impact running an existing DNS server? Is it only checking DNSSEC record not resolving hostname? I don't want this clobbering an existing DNS server for full resolution. As long as you can disable dnssec-triggerd im fine with this. I run PowerDNS and they will soon have DNSSEC support for recursor then I don't need dnssec-triggerd locally (or remotely if I allow my DNS server to allow external recursion).

What about libvirt dnsmasq?

Libvirt runs it's own instance of dnsmasq which already listens on by default. This will need adjusting.

tcp        0      0*               LISTEN      1839/dnsmasq        
tcp        0      0  *               LISTEN      1689/dnsmasq        
udp        0      0*                           1839/dnsmasq        
udp        0      0  *                           1689/dnsmasq        
udp        0      0    *                           1839/dnsmasq