Some hosts not resolving from No-IP by our DNS servers

[Frank Pikelner]

Hello,

I'm having a problem resolving several hosts from NO-IP. When I attempt to resolve them from our DNS servers I get no reply (we can resolve other hosts). I'm not certain why the resolution stops. If I force a resolution using external DNS servers using dig (i.e. Google 8.8.8.8) the hosts resolve without problem. Here is the trace from our DNS server:


dig oa.in-ip.info +trace

; <<>> DiG 9.6-ESV-R1 <<>> oa.in-ip.info +trace
;; global options: +cmd
.                       25973   IN      NS      j.root-servers.net.
.                       25973   IN      NS      e.root-servers.net.
.                       25973   IN      NS      m.root-servers.net.
.                       25973   IN      NS      k.root-servers.net.
.                       25973   IN      NS      b.root-servers.net.
.                       25973   IN      NS      d.root-servers.net.
.                       25973   IN      NS      f.root-servers.net.
.                       25973   IN      NS      g.root-servers.net.
.                       25973   IN      NS      h.root-servers.net.
.                       25973   IN      NS      c.root-servers.net.
.                       25973   IN      NS      i.root-servers.net.
.                       25973   IN      NS      a.root-servers.net.
.                       25973   IN      NS      l.root-servers.net.
;; Received 436 bytes from 127.0.0.1#53(127.0.0.1) in 1 ms

info.                   172800  IN      NS      d0.info.afilias-nst.org.
info.                   172800  IN      NS      b2.info.afilias-nst.org.
info.                   172800  IN      NS      b0.info.afilias-nst.org.
info.                   172800  IN      NS      a0.info.afilias-nst.info.
info.                   172800  IN      NS      a2.info.afilias-nst.info.
info.                   172800  IN      NS      c0.info.afilias-nst.info.
;; Received 434 bytes from 192.58.128.30#53(j.root-servers.net) in 230 ms

info.                   900     IN      SOA     a0.info.afilias-nst.info. noc.afilias-nst.info. 2009263081 3600 1800 604800 3600
;; Received 91 bytes from 199.249.113.1#53(a2.info.afilias-nst.info) in 3 ms

Would appreciate any pointers.

Thank you,

Frank
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