In article <mailman.812.1463666011.73610.bind-us...@lists.isc.org>, Matus UHLAR - fantomas <uh...@fantomas.sk> wrote:
> On 18.05.16 14:10, Con Wieland wrote: > >I am having an issue resolving www.cloudsat.cira.colostate.edu from 2 of my > > name servers. I have 2 others with identical configs that resolve > > correctly. A normal lookup shows a server fail but a +trace looks ok. > > Any ideas how to better troubleshoot the issue? > > tried web dns checkers? Some of them use to provide useful results. > > >dig www.cloudsat.cira.colostate.edu @ns1.service.uci.edu > [...] > >;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 1057 > > > >colostate.edu. 172800 IN NS dns1.colostate.edu. > >colostate.edu. 172800 IN NS dns3.colostate.edu. > >;; Received 119 bytes from 192.41.162.30#53(l.edu-servers.net) in 78 ms > > > >www.cloudsat.cira.colostate.edu. 3600 IN CNAME dpc.cira.colostate.edu. > >dpc.cira.colostate.edu. 3600 IN A 129.82.109.62 > >;; Received 83 bytes from 129.82.103.121#53(dns1.colostate.edu) in 36 ms > > often a problem of invalid NS delegation, or bad TTL (A record for a server > expires before NS record). Glue A records for the nameservers have 172800 TTL, authoritative A records have 1200. Sam -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
