29 Aug
2017
29 Aug
'17
5:03 p.m.
A good source of diagnostic information is IntoDNS, and that shows a lot of problems with
ampr.org:
https://intodns.com/ampr.org
-- Scott Nelson, WA6BLF
> On Aug 29, 2017, at 3:56 PM, Cory (NQ1E) <cory(a)nq1e.hm> wrote:
>
> Unfortunately, that's based on the list of name servers in the
> authoritative zone file and not based on the list of servers in effect as
> set by the dot org registry.
>
> I've expanded on Tom's script to take that into account and found
there's
> apparently a couple of servers not answering at all.
>
>
> $ cat nssoa.sh
> #!/bin/bash
> ZONE=${1:-ampr.org}
> PARENTDOMAIN=$(echo -n $ZONE | cut -d'.' -f 2-)
> REGISTRYNS=$(dig -t ns +short $PARENTDOMAIN | tail -n1)
> for nameserver in $(dig +norecurse +authority +noadditional @$REGISTRYNS
> $ZONE | grep -i ^$ZONE | cut -f 6); do
> echo "$(dig +short soa @$nameserver $ZONE | cut -d' ' -f3)"
> "$nameserver"
> done
>
> $ ./nssoa.sh | sort
> dig: couldn't get address for 'ns.nonanet.net.uk.': not found
> 1708281715 ns1.defaultroute.net.
> 1708282030 munnari.oz.au.
> 1708291800 ampr-dns.in-berlin.de.
> 1708291800 ampr.org.
> 1708291800 ns2.threshinc.com.
> ns.nonanet.net.uk.
> timed hamradio.ucsd.edu.
>
>
>
>
>
> On Tue, Aug 29, 2017 at 11:55 AM, Brian Kantor <Brian(a)ucsd.edu> wrote:
>
>> Yes, that is very helpful. Thank you.
>> - Brian
>>
>>
>> On Tue, Aug 29, 2017 at 11:51:24AM -0700, Tom Hayward wrote:
>>> 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
>>> _________________________________________
>>> 44Net mailing list
>>> 44Net(a)hamradio.ucsd.edu
>>> http://hamradio.ucsd.edu/mailman/listinfo/44net
>> _________________________________________
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>> http://hamradio.ucsd.edu/mailman/listinfo/44net
>>
>