Davenport, Steve M wrote:
Hello,
I noticed that one of our nameservers is no longer responding with the
correct address externally. The server is ns-2.hosp.utmck.edu and is
listed as a server in the registration record for utmck.edu. The address
should be 165.6.6.27 but a dig/nslookup from an external site returns
165.6.144.1. We do not have 165.6.144.1 in any of the zone files, but
this address is the external address of a broadband service manager in
our network. Using dig/nslookup on the local network verifies that
165.6.144.1 is not in the zone files or cache of our nameservers. The
name and address of our ns-2 resolve correctly internally. Can someone
please tell me how to identify and correct this problem.
Have you checked the IP registered for the NS?
ns-2.hosp.utmck.edu. 172800 IN A 165.6.144.1
utmck.edu. 172800 IN NS harley.mc.utmck.edu.
utmck.edu. 172800 IN NS ns-2.hosp.utmck.edu.
;; Received 123 bytes from 192.31.80.30#53(D.GTLD-SERVERS.NET) in 27 ms
dig -tA ns-2.hosp.utmck.edu +trace
; <<>> DiG 9.2.4 <<>> -tA ns-2.hosp.utmck.edu +trace
;; global options: printcmd
. 444765 IN NS F.ROOT-SERVERS.NET.
. 444765 IN NS G.ROOT-SERVERS.NET.
. 444765 IN NS H.ROOT-SERVERS.NET.
. 444765 IN NS I.ROOT-SERVERS.NET.
. 444765 IN NS J.ROOT-SERVERS.NET.
. 444765 IN NS K.ROOT-SERVERS.NET.
. 444765 IN NS L.ROOT-SERVERS.NET.
. 444765 IN NS M.ROOT-SERVERS.NET.
. 444765 IN NS A.ROOT-SERVERS.NET.
. 444765 IN NS B.ROOT-SERVERS.NET.
. 444765 IN NS C.ROOT-SERVERS.NET.
. 444765 IN NS D.ROOT-SERVERS.NET.
. 444765 IN NS E.ROOT-SERVERS.NET.
;; Received 500 bytes from 67.19.0.10#53(67.19.0.10) in 1 ms
edu. 172800 IN NS D.GTLD-SERVERS.NET.
edu. 172800 IN NS L.GTLD-SERVERS.NET.
edu. 172800 IN NS G.GTLD-SERVERS.NET.
edu. 172800 IN NS F.GTLD-SERVERS.NET.
edu. 172800 IN NS A.GTLD-SERVERS.NET.
edu. 172800 IN NS C.GTLD-SERVERS.NET.
edu. 172800 IN NS E.GTLD-SERVERS.NET.
;; Received 305 bytes from 192.5.5.241#53(F.ROOT-SERVERS.NET) in 48 ms
ns-2.hosp.utmck.edu. 172800 IN A 165.6.144.1
utmck.edu. 172800 IN NS harley.mc.utmck.edu.
utmck.edu. 172800 IN NS ns-2.hosp.utmck.edu.
;; Received 123 bytes from 192.31.80.30#53(D.GTLD-SERVERS.NET) in 27 ms
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