[ntp:questions] DNS server b.ntpns.org for pool.ntp.org domain is down

Michael Wang mwang at unixlabplus.com
Mon Aug 20 05:45:04 UTC 2007


I have been having trouble resolve pool.ntp.org servers.
It has been going on for about two weeks.

I traced down the problem to that one of the DNS servers
for pool.ntp.org domain "b.ntpns.org." is down.

pool.ntp.org.           604800  IN      NS      b.ntpns.org.
pool.ntp.org.           604800  IN      NS      c.ntpns.org.
pool.ntp.org.           604800  IN      NS      d.ntpns.org.
pool.ntp.org.           604800  IN      NS      e.ntpns.org.
pool.ntp.org.           604800  IN      NS      a.ntpns.org.

The problemil is illustrated below:

# nslookup                       

> server b.ntpns.org
Default server: b.ntpns.org
Address: 67.19.103.171#53

> 0.pool.ntp.org
Server:         b.ntpns.org
Address:        67.19.103.171#53

** server can't find 0.pool.ntp.org: NXDOMAIN

> server a.ntpns.org

Default server: a.ntpns.org
Address: 216.52.237.236#53

> 0.pool.ntp.org
Server:         a.ntpns.org
Address:        216.52.237.236#53

Name:   0.pool.ntp.org
Address: 62.112.193.129
Name:   0.pool.ntp.org
Address: 88.191.23.218
Name:   0.pool.ntp.org
Address: 80.190.251.105
Name:   0.pool.ntp.org
Address: 194.88.2.88
Name:   0.pool.ntp.org
Address: 195.22.25.130
Name:   0.pool.ntp.org
Address: 85.10.195.19
Name:   0.pool.ntp.org
Address: 193.93.167.241
Name:   0.pool.ntp.org
Address: 66.36.239.104
Name:   0.pool.ntp.org
Address: 194.77.75.99
Name:   0.pool.ntp.org
Address: 213.139.167.172
Name:   0.pool.ntp.org
Address: 213.144.140.154
Name:   0.pool.ntp.org
Address: 91.121.10.82
Name:   0.pool.ntp.org
Address: 213.129.242.82
Name:   0.pool.ntp.org
Address: 81.178.50.155

-- 
Michael Wang, http://www.unixlabplus.com/, /* for future expansion */
Email=$(echo 37wxloc at ibmude.au | sed "s:\(.\)\(.\)\(.\)\(.\):\4\3\2\1:g")
Technical writings: http://www.unixlabplus.com/unix-prog/Publication.txt




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