[tz] Blocked USNO sites was: Updated Public Domain leapseconds.list

Brian Inglis Brian.Inglis at SystematicSw.ab.ca
Sat Jul 6 16:12:26 UTC 2019

On 2019-07-05 15:55, Chris Woodbury via tz wrote:
> # This NTP leap-second file was created with data obtained from
> # the United States Naval Observatory (USNO) MAIA FTP server.
> #
> #  Find it at: <ftp://maia.usno.navy.mil/ser7/leapsec.dat>

> #   See: http://maia.usno.navy.mil/ser7/ser7.txt

Seems to be some DNS resolver and network blocking, possibly only outside the
US, to maia.usno.navy.mil and www.usno.navy.mil; interactive web browser access
to tycho.usno.navy.mil and aa.usno.navy.mil mostly work, but web browser ftp
access does not, and non web browser resolution and access do not, e.g. host or
wget; however everything resolves and is accessible form the browser and command
line from toshi.nofs.navy.mil.
Some other previous reports back this up, but there were no followups to say
whether issues were temporary and cleared up, or persisted and were permanent.

It may be possible that lookups or accesses may be rate limited to deter
intrusions, or entries may have expired because they may be offline for July 4
thru the weekend, or sites may be blocked due to lack of monitoring staff or
funding for non-defense services.

Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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