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Message-ID: <20070310202511.GA21945@openwall.com>
Date: Sat, 10 Mar 2007 23:25:11 +0300
From: Solar Designer <solar@...nwall.com>
To: owl-users@...ts.openwall.com
Subject: US/Canada earlier Daylight Savings
Hi,
I'd like to remind of and provide advice on tonight's Y2K7 problem as
it relates to Openwall GNU/*/Linux (Owl). If you've only installed
Owl 2.0+, please don't be alarmed - Owl 2.0 is not affected, but systems
running or upgraded from older versions of Owl might be.
According to the Wikipedia article, "starting in 2007, Daylight Saving
Time in many jurisdictions of the United States and Canada will
begin earlier and run later than in previous years; it will start on the
second Sunday in March and end on the first Sunday in November."
http://en.wikipedia.org/wiki/Y2K7
What this means is that older versions of computer software, and
specifically operating systems, might not switch to DST tonight as they
should. Openwall GNU/*/Linux (Owl) 2.0 release, as well as 2.0-stable
and post-2.0 -current, are not affected as they already include a
version of glibc with a timezone file that includes this update.
However, older (unsupported) versions of Owl are affected. Perhaps more
importantly, systems that have been upgraded to Owl 2.0 or newer from a
pre-2.0 version of Owl might be affected if the /etc/localtime file has
been left from a previous version of Owl. To correct this, you need to
run the "setup" program (it's installed on the system - just type
"setup" to invoke it) and choose your timezone again. This will
overwrite /etc/localtime with the corresponding file from under
/usr/share/zoneinfo/. Alternatively, you may copy the file manually.
After having replaced /etc/localtime, you need to either reboot the
system or restart its services (start with "service syslog restart",
then proceed with the rest of the services that might have the old
timezone info cached).
If you have any comments or questions on this issue, please respond to
this message (to the list).
Thanks,
--
Alexander Peslyak <solar at openwall.com>
GPG key ID: 5B341F15 fp: B3FB 63F4 D7A3 BCCC 6F6E FC55 A2FC 027C 5B34 1F15
http://www.openwall.com - bringing security into open computing environments
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