Starting zone checks for nymph.net
Checking zone name
Resolving name-server address-> ns2.f20.com. 21600 IN A 85.17.201.132Checking existence of zone-> nymph.net. 21600 IN SOA ns.f20.com. hm.mrtd.com. ( 2009092017 ; Serial 7200 ; Refresh 3600 ; Retry 604800 ; Expire 3333 ) ; Minimum TTLChecking NS records-> nymph.net. 21600 IN NS ns2.f20.com. -> nymph.net. 21600 IN NS ns.f20.com.Checking nameserver authority and synchronization-> ns2.f20.com. 21600 IN A 85.17.201.132 -> 132.201.17.85.in-addr.arpa. 64385 IN PTR ns2.f20.com.Probing name server ns2.f20.com (85.17.201.132)-> nymph.net. 21600 IN SOA ns.f20.com. hm.mrtd.com. ( 2009092017 ; Serial 7200 ; Refresh 3600 ; Retry 604800 ; Expire 3333 ) ; Minimum TTL -> nymph.net. 21600 IN NS ns2.f20.com. -> nymph.net. 21600 IN NS ns.f20.com. -> ns.f20.com. 21600 IN A 174.37.201.8### Error: ns.f20.com (174.37.201.8) has no reverse record [see RFC1912:2.1 for details]
Probing name server ns.f20.com (174.37.201.8)-> nymph.net. 21600 IN SOA ns.f20.com. hm.mrtd.com. ( 2009092017 ; Serial 7200 ; Refresh 3600 ; Retry 604800 ; Expire 3333 ) ; Minimum TTL -> nymph.net. 21600 IN NS ns2.f20.com. -> nymph.net. 21600 IN NS ns.f20.com.Decided to use ns2.f20.com (85.17.201.132) for zone check
Checking whether ns2.f20.com knows an A record for its own name-> ns2.f20.com. 21600 IN A 85.17.201.132Checking whether ns2.f20.com is able to reverse-map its own IP address
Checking connectivity with other nameservers
### Warning: ns2.f20.com is unable to resolve www.ucw.cz (maybe it's non-recursive)
### Warning: ns2.f20.com is unable to resolve atrey.karlin.mff.cuni.cz (maybe it's non-recursive)
### Warning: ns2.f20.com is unable to resolve www.google.com (maybe it's non-recursive)
Checking mapping of localhost-> localhost. 86400 IN A 127.0.0.1 -> 1.0.0.127.in-addr.arpa. 86400 IN PTR localhost.Summary: 1 errors, 3 warnings