With the following host-file from baselayout 2: # IPv4 and IPv6 localhost aliases 127.0.0.1 localhost ::1 localhost ntpq -np localhost gets a timeout and ntpd can't be reached thru localhost anymore. ntpq -np <public_ip> is still working. With entries of the hosts-file from baselayout 1 ntpq -np localhost is working flawlessly: # IPv4 localhost aliases 127.0.0.1 localhost # IPV6 versions of localhost and co ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts
make your server listen on IPv6, or use the -4 flag with ntpq