29 Aug
2017
29 Aug
'17
2:51 p.m.
On Tue, Aug 29, 2017 at 11:11 AM, Brian Kantor <Brian(a)ucsd.edu> wrote:
The way to tell if a particular nameserver is current
is to examine
the serial number in the ampr.org SOA record as retrieved from it
and compare that with the SOA from ampr.org (44.0.0.1). I use the
'dig' tool for this purpose; there are other tools as well.
Brian,
Here is a script you might find useful for diagnostics.
$ cat nssoa.sh
#!/bin/bash
ZONE=${1:-ampr.org}
for nameserver in $(dig +short ns $ZONE); do
echo "$(dig +short soa @$nameserver $ZONE | cut -d' ' -f3)"
"$nameserver"
done
$ ./nssoa.sh | sort
1708281715 ns0.comgw.net.
1708282030 munnari.OZ.AU.
1708282030 ns1.defaultroute.net.
1708291000 ampr-dns.in-berlin.de.
1708291800 ampr.org.
1708291800 ns2.threshinc.com.
Tom KD7LXL