> the maps for NDS in ampr.org is quit big < 1MB,
Yes, this is true
> so I like to know if everywhere
> in the world everybody uses just this map or are there also maps for local
> regions ? The IP-Numbers are sortet by local regions, so I think of local
> dns-maps which reflect them. Maybe this can help getting better existing
> routes.
Downloading the ampr.org zone from Spain either gets refused, or fails due
to timeouts (can't remember which) so I resorted to picking up the file from
ftp.uscd.edu/hamradio/ampr.tar.Z once a month.
Access to ftp.ucsd.edu is also slow from Madrid, so I setup a crontab on
someone else's machine to download the file and mail it to me. Obviously
for others this may also be a problem.
I wrote a simple perl script which attempted to extract from the "whole"
ampr.org dns file the part of the domain corresponding to Spain, 44.133.x.x
with the intention of sending this to our eaip list once a month. Preferibly
I should send the changes from one month to another, thus reducing bandwidth,
but luckily (in this respect) in Spain there are not a large number of tcp/ip
users, so this is not a real problem.
The only real problem I have is that the DNS's idea of our domain doesn't
correspond _exactly_ with what the local ip coordinator thinks exists. This
is a shame, and from what I've read in UKIP, they have a similar problem.
Although Brian has never said that the DNS server at ucsd.edu should be counted
as the true "source" of information, with much more widespread use of the
Internet, it's much easier to check through Internet DNS (if available) for
the various A or MX records.
subdomaining ampr.org, has advantages and disadvantages: I see both.
Here Brian has been quite clear. He doesn't want this to take place, I guess
because of the potential chaos that could result. Well managed this shouldn't
be a problem, but as we're amateurs, perhaps we may make mistakes and cause
grief and be unaware of this for some time.
The uk has been permitted to have a uk.ampr.org, but I think they still have
trouble with this working properly (I may be wrong). As far as downloading
zone information is concerned, zoning as in uk.ampr.org is much easier, as
you only request the relevant entries and the files are thus much smaller.
Here's probably not the place to discuss this (zoning of ampr.org).
If you want a copy of the perl scripts I wrote (they are not very complicated)
let me know. I also have one which checks for differences between the
ip coordinators view of his sub-domain, and the DNS equivalent view. This is
useful for finding errors, and missing, or extra entries.
> Has anybody experiene with this idea, or what is the clue for better routing ?
-- regards,Simon J Mudd, EA4ELS / G0FNB +34-1-559 2854 Madrid, Spain qcvzqmuy@kase.fi grscjdca@polarcomm.com [short messages - radio hams only]