On 17Jul2018 11:48, Danny Horne <danny@xxxxxxxxxx> wrote:
I recently changed my Fedora 28 servers from UTC to Europe/London
timezone, so now it's displaying times in BST (British Summer Time).
Come October this will change to GMT (Greenwich Mean Time).
1) Will the timezone change automatically (account for the hours
difference)?
It should do. A timezone says that the offset from UTC is this many hours
during these times and that many hours these other times. The OS workings in
seconds - all the timezone/localtime stuff is just presentation.
2) Will rsyslog continue to post log times as BST or will it
automatically change to GMT without having to restart it?
That, OTOH, I don't know. The timezone might be looked up every time a
timestamp is transcribed. But also, you can override the system default from
/etc/timezone by specifying your timezone in the environment (so that people
logged in from different timezones can see things in their own local time in
listings, and work in their local time).
As such, you may need to restart some services for them to notice the change.
And it might vary with the service :-(
I've also just discovered a weird problem. I have three servers all
configured for Europe/London timezone. Two show times in BST when using
the 'date' command, but one still shows as UTC (see below).
What have I missed?
What's in the environment? I like "env | sort".
Also, check /etc/timezone, normally a symlink to the desired system default
timezone file.
[root@kepler ~]# date
Tue 17 Jul 11:42:53 BST 2018
[root@kepler ~]#
[root@kepler ~]# timedatectl
Local time: Tue 2018-07-17 11:42:56 BST
Universal time: Tue 2018-07-17 10:42:56 UTC
RTC time: Tue 2018-07-17 10:42:56
Time zone: Europe/London (BST, +0100)
System clock synchronized: yes
systemd-timesyncd.service active: yes
RTC in local TZ: no
[root@hawking log]# date
Tue 17 Jul 10:43:07 UTC 2018
[root@hawking log]#
[root@hawking log]# timedatectl
Local time: Tue 2018-07-17 11:43:10 BST
Universal time: Tue 2018-07-17 10:43:10 UTC
RTC time: Tue 2018-07-17 10:43:10
Time zone: Europe/London (BST, +0100)
System clock synchronized: yes
systemd-timesyncd.service active: yes
RTC in local TZ: no
Thanks for looking
Yeah, I'd suspect the shell environment, since your timedatectl outputs look
equivalent.
Cheers,
Cameron Simpson <cs@xxxxxxxxxx>
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