Starting zone checks for irb.nl
Checking zone name
Resolving name-server address-> dns3.blixem.nl. 900 IN A 212.79.243.131Checking existence of zone-> irb.nl. 900 IN SOA dns1.blixem.nl. hostmaster.blixem.nl. ( 2010052501 ; Serial 86400 ; Refresh 3600 ; Retry 604800 ; Expire 86400 ) ; Minimum TTLChecking NS records-> irb.nl. 900 IN NS dns1.blixem.nl. -> irb.nl. 900 IN NS dns3.blixem.nl. -> irb.nl. 900 IN NS dns2.blixem.nl.Checking nameserver authority and synchronization-> dns3.blixem.nl. 900 IN A 212.79.243.131### Error: Unable to resolve 131.243.79.212.in-addr.arpa.: SERVFAIL
### Error: dns3.blixem.nl (212.79.243.131) has no reverse record [see RFC1912:2.1 for details]
Probing name server dns3.blixem.nl (212.79.243.131)-> irb.nl. 900 IN SOA dns1.blixem.nl. hostmaster.blixem.nl. ( 2010052501 ; Serial 86400 ; Refresh 3600 ; Retry 604800 ; Expire 86400 ) ; Minimum TTL -> irb.nl. 900 IN NS dns1.blixem.nl. -> irb.nl. 900 IN NS dns3.blixem.nl. -> irb.nl. 900 IN NS dns2.blixem.nl. -> dns2.blixem.nl. 900 IN A 91.185.134.47### Error: Unable to resolve 47.134.185.91.in-addr.arpa.: SERVFAIL
### Error: dns2.blixem.nl (91.185.134.47) has no reverse record [see RFC1912:2.1 for details]
Probing name server dns2.blixem.nl (91.185.134.47)-> irb.nl. 900 IN SOA dns1.blixem.nl. hostmaster.blixem.nl. ( 2010052501 ; Serial 86400 ; Refresh 3600 ; Retry 604800 ; Expire 86400 ) ; Minimum TTL -> irb.nl. 900 IN NS dns1.blixem.nl. -> irb.nl. 900 IN NS dns3.blixem.nl. -> irb.nl. 900 IN NS dns2.blixem.nl. -> dns1.blixem.nl. 900 IN A 212.79.243.130### Error: Unable to resolve 130.243.79.212.in-addr.arpa.: SERVFAIL
### Error: dns1.blixem.nl (212.79.243.130) has no reverse record [see RFC1912:2.1 for details]
Probing name server dns1.blixem.nl (212.79.243.130)-> irb.nl. 900 IN SOA dns1.blixem.nl. hostmaster.blixem.nl. ( 2010052501 ; Serial 86400 ; Refresh 3600 ; Retry 604800 ; Expire 86400 ) ; Minimum TTL -> irb.nl. 900 IN NS dns1.blixem.nl. -> irb.nl. 900 IN NS dns3.blixem.nl. -> irb.nl. 900 IN NS dns2.blixem.nl.Decided to use dns3.blixem.nl (212.79.243.131) for zone check
Checking whether dns3.blixem.nl knows an A record for its own name-> dns3.blixem.nl. 900 IN A 212.79.243.131Checking whether dns3.blixem.nl is able to reverse-map its own IP address
Checking connectivity with other nameservers
### Error: Unable to resolve www.ucw.cz: SERVFAIL
### Warning: dns3.blixem.nl is unable to resolve www.ucw.cz (maybe it's non-recursive)
### Error: Unable to resolve atrey.karlin.mff.cuni.cz: SERVFAIL
### Warning: dns3.blixem.nl is unable to resolve atrey.karlin.mff.cuni.cz (maybe it's non-recursive)
### Error: Unable to resolve www.google.com: SERVFAIL
### Warning: dns3.blixem.nl is unable to resolve www.google.com (maybe it's non-recursive)
Checking mapping of localhost
### Error: Unable to resolve localhost: SERVFAIL
### Warning: dns3.blixem.nl is unable to resolve localhost [see RFC1912:4.1 for details]
### Error: Unable to resolve 1.0.0.127.in-addr.arpa: SERVFAIL
### Warning: Reverse mapping of 127.0.0.1 at dns3.blixem.nl doesn't work [see RFC1912:4.1 for details]
Summary: 11 errors, 5 warnings