Hi Mike,
It appears that certain daemons don't read tzdata except at startup.
I'm not using bind or sendmail in production but I did notice this on a
few development servers... Probably related to the way time zone info
is read by libc. Because really, how often does it change? :)
- Chris
Mike Tancsa wrote:
I am seeing some inconsistent and strange results after the DST change
this weekend. On all the boxes, it seems setup OK
# zdump -v /etc/localtime | grep 2007
/etc/localtime Sun Mar 11 06:59:59 2007 UTC = Sun Mar 11 01:59:59 2007
EST isdst=0 gmtoff=-18000
/etc/localtime Sun Mar 11 07:00:00 2007 UTC = Sun Mar 11 03:00:00 2007
EDT isdst=1 gmtoff=-14400
/etc/localtime Sun Nov 4 05:59:59 2007 UTC = Sun Nov 4 01:59:59 2007
EDT isdst=1 gmtoff=-14400
/etc/localtime Sun Nov 4 06:00:00 2007 UTC = Sun Nov 4 01:00:00 2007
EST isdst=0 gmtoff=-18000
And the command "date" gives the correct time.
But until I restart some applications, I dont see the right times logged
in syslog ?!
e.g
# date
Mon Mar 12 08:17:06 EDT 2007
And looking at BIND's entries to syslog, I see the correct timestamps
Mar 12 08:17:42 granite named[16080]: denied recursion for query from
[198.73.192.129].1364 for 119.64.22.72.in-addr.arpa IN
Mar 12 08:17:42 granite named[16080]: denied recursion for query from
[198.73.192.129].1364 for 119.64.22.72.in-addr.arpa IN
Mar 12 07:17:43 granite /kernel: Connection attempt to TCP
199.212.xx.x:995 from 74.97.26.112:53911 flags:0x02
Mar 12 08:17:50 granite named[16080]: denied update from
[64.7.xx.90].2163 for "xxx.com" IN
Mar 12 08:17:50 granite named[16080]: denied update from
[64.7.xx.90].2163 for "xxx.com" IN
yet mixed in notice the /kernel entry... Its an hour off !?
if I restart syslogd, it corrects it for the kernel entry, but not for
other applications. They all seem to log the time one hour back. Most
applications seem this way. On my more recent boxes this didnt happen,
but for some legacy RELENG_4 and older RELENG_5 and RELENG_6 boxes, the
same odd behavior.
/etc/localtime looks the same on all the boxes
# md5 /etc/localtime
MD5 (/etc/localtime) = 82980b1345aab5a97d90307edfefb6da
[smtp1]% md5 /etc/localtime
MD5 (/etc/localtime) = 82980b1345aab5a97d90307edfefb6da
[smtp1]%
yet different behaviour. Any idea whats up ?
---Mike
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, [EMAIL PROTECTED]
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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