[63558] in North American Network Operators' Group

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Re: ftp.cisco.com broken ?

daemon@ATHENA.MIT.EDU (Crist Clark)
Tue Oct 7 14:03:08 2003

Date: Tue, 07 Oct 2003 10:51:55 -0700
From: Crist Clark <crist.clark@globalstar.com>
To: Ezequiel Carson <ezequiel@ifxnw.com.ar>
Cc: nanog@nanog.org
Reply-To: crist.clark@globalstar.com
Errors-To: owner-nanog-outgoing@merit.edu


Ezequiel Carson wrote:
> 
> hi,
> 
>         can you resolve ftp.cisco.com?
> 
> [root@localhost /]# ping ftp.cisco.com
> ping: unknown host ftp.cisco.com
> [root@localhost /]#
> 
> something is wrong here....

Their DNS is a little strange and slow, but it resolves for me,

  [521:~] host -t ns cisco.com g.gtld-servers.net
  Using domain server:
  Name: g.gtld-servers.net
  Addresses: 192.42.93.30

  cisco.com name server ns1.cisco.com
  cisco.com name server ns2.cisco.com
  [522:~] host -t ns ftp.cisco.com ns1.cisco.com
  Using domain server:
  Name: ns1.cisco.com
  Addresses: 128.107.241.185

  ftp.cisco.com name server rtp5-dirty-ddir.cisco.com
  ftp.cisco.com name server sjce-dirty-ddir.cisco.com
  [523:~] dig @rtp5-dirty-ddir.cisco.com ftp.cisco.com

  ; <<>> DiG 8.3 <<>> @rtp5-dirty-ddir.cisco.com ftp.cisco.com 
  ; (1 server found)
  ;; res options: init recurs defnam dnsrch
  ;; got answer:
  ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
  ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
  ;; QUERY SECTION:
  ;;      ftp.cisco.com, type = A, class = IN

  ;; ANSWER SECTION:
  ftp.cisco.com.          1M IN A         198.133.219.27

  ;; Total query time: 4428 msec
  ;; FROM: sec-tools.corp.globalstar.com to SERVER: rtp5-dirty-ddir.cisco.com  64.102.255.39
  ;; WHEN: Tue Oct  7 10:47:06 2003
  ;; MSG SIZE  sent: 31  rcvd: 47

Look at the query time. The other NS for ftp.cisco.com has a similar
time for me. I didn't show it here, but the NS records for ftp.cisco.com
have a 10s TTL too. And look at the name of the servers. Odd. Not exactly
sure what's going on down the street with them.
-- 
Crist J. Clark                               crist.clark@globalstar.com
Globalstar Communications                                (408) 933-4387

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