[3809] in RedHat Linux List
Re: dumb question about time
daemon@ATHENA.MIT.EDU (Robert Hart)
Mon Nov 11 00:16:23 1996
Date: Mon, 11 Nov 1996 16:13:41 +1100 (EST)
From: Robert Hart <hartr@interweft.com.au>
Reply-To: Robert Hart <iweft@ipax.com.au>
To: redhat-list@redhat.com
In-Reply-To: <v03007800aeac5923b9c5@[205.223.205.241]>
Resent-From: redhat-list@redhat.com
On Sun, 10 Nov 1996, Craig Zody wrote:
> New install asks about the the time zone and whether it should be stored in
> local time or Greenwich mean time (UTC?).
>
> What's the best choice for a dedicated email machine hooked to a T-1 line?
If the machine just runs Linux, then set the cmos clock to UTC and set the
timezone up correctly.
> If I picked UTC time, does that mean I have to offset the CMOS clock by 5
> hours to correct the time reported by the system (set the CMOS clock TO
> UTC)?
Nope - that's handled by the timezone function.
> If I want to change whether it's stored in local or UTC, how do I go about
> it? Is there a file somewhere that I can edit?
Yup...
1) Set the CMOS clock to UTC.
2) link the file /etc/localtime to the correct timezone for your zone, in
my case this looks like
lrwxrwxrwx 1 root root 37 Oct 5 21:54 localtime ->
/usr/lib/zoneinfo/Australia/Melbourne
3) edit /etc/sysconfig so it reads
CLOCKMODE="GMT"
4) reboot.
If this machie has a 24x7 connection, I suggest you get xntpd (there's an
rpm for this in the contrib area of ftp.redhat.com) and set this up to
synch the time to tow/three good ntp servers close (in net terms) to you.
This will keep your clock from drifting away from the actual time...
Robert Hart iweft@ipax.com.au
Voice: +61 (0)3 9735 3586 http://203.29.72.65/
InterWeft, 35 Summit Road, Lilydale, Victoria 3140, Australia
IT, data and voice networking
Strategic IT business planning
Internet planning, implementation, security and configuration
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