Yes of course it is for coordinators - those are the people who are supposed to assign and
update the name-address mappings.
I think once it was an objective of the portal to enable users to update the entries in
their own subnet, but it never materialized.
Also I thing a web DNS editor (most of them anyway) is not a useful tool for a
coordinator, as they need to have an overview of the entire subnet they manage. When
someone asks for an address I have to look what is already there, which subnet is for that
area, what ranges are free, and then assign an address or subnet to them as required.
That is easy when having the hosts file (which includes comments) in my editor, and much
more difficult when I have to browse around in a webtool.
DNS delegation fragments the resource. There are several NS records that point to
internet addresses, making us dependent on internet for address lookup. This even is the
case for
ampr.org itself for which only 1 of the 4 servers is on AMPRnet.
Also those servers are distributed around the world. This makes
ampr.org and 44-reverse
lookups quite slow.
As we like things to work well, I have an hourly job that checks the DNS serial for the
ampr.org zone and when it is newer than our local copy, it retrieves the newest zone files
from
ftp://gw.ampr.org/pub/ampr.tar.gz and loads them into our own DNS resolver.
So anything that is directly in those zonefiles can be looked up quickly on our network,
the delegated parts of course remain slow.
It would of course be better when we could just IXFR the updates from the master server,
but it does not support it.
I also tried to do this with some of the delegated servers but most of them refuse
transfers.
Not very friendly I would say, but likely it is just the default setup for most DNS
servers these days.
I think they should at least support zone transfer, preferably IXFR, from net-44
addresses.
Rob
On 8/14/21 7:52 PM, Af6ep via 44Net wrote:
I'd be happy to use the email robot to update my
own dns...... But last I heard it was available to coordinators only and I've never
seen a description of howto use it published at least widely enough that it was seen by
the amprnet masses. I can also see security issues with such. I've been asking for
DNS zone deligation both forward and reverse for years, and I would fully support such a
move. It seems that the case for transfering the entire
ampr.org zone is over rated and
could still be done by crawling the DNS tree, but why? if you are off line and
disconnected you only need DNS for your subnet anyway as you won't be able to reach
anything else DNS or not.
eric
af6ep
On 2021-08-14 08:43, Rob PE1CHL via 44Net wrote:
This is already there. Some regions and amateurs
do run their own DNS.
I don't think it is that great, because it makes it impossible to simply transfer the
entire DNS
zone to a local server and have faster DNS lookups independent of an internet
connection.
But it works, I guess...
IMHO it would be better to offer a DNS update API, where everyone can update their own
host
records in an easily automated way. It of course exists in the form of the mail robot
and also
the web DNS editor but apparently some people think it is not good enough.
(I use the mail robot myself as part of an automated update)
Rob
On 8/14/21 5:32 PM, Bill Buhler via 44Net wrote:
Just thought of this this morning, and was
wondering if we could have a DNS delegation system for hams off of
ampr.org or another
domain name?
Something like:
af7sj.ampr.org ns myprimary.dns.server
af7sj.ampr.org ns mysecondary.dns.server
In my ideal deal world there would be a .radio TLD... or a .44net tld... But would it
make sense to offer any ham out there a DNS subdomain based on their call? For those that
want to limit access that could also become part of their checks, i.e. does the forward
and backward DNS resolve to a
subdomain.ampr.org domain?
73
Bill Buhler - AF7SJ
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