[arch] "clock" changes automatically at reboot

[fredrik.eriksson at gigabit.nu]

Actually its pretty simple, everyone can use ntp even if their computer
isnt online 24/7...

Start by writing "pacman -S ntp" to get all ntp utils and such.

Then edit /etc/ntp.conf and add a line saying:
server <domainname or ip to ntp server> prefer

Then edit /etc/rc.conf and add "ntpd" in DAEMONS=().

If you dont want to do it that way i can suggest an ugly version.

crontab -e as root, then write:
*/5 * * * * ntpdate <ntp-server ip or domainname> &> /dev/null


The first version is better because you can add more then 1 server (just
dont put perfer on the extra ones) and they will set a date/time that most
of the servers added replied... and its safer incase one ntp goes down.

/ Fredrik Eriksson


> Le Friday 23 February 2007 07:02:25 arnuld, vous avez écrit :
>> on every boot, clock changes automatically
> by how much from what you set previously ?
>
> to set your clock, you must use something like that for 2007-02-23 at
> 07:02
> date 02230702
> look at the man page
>
>> i guess, software clock sets up itself according to
>> hardware clock, rather than the opposite.
>
> no. it is the hardware clock that is set to software clock at shudown
> time.
>
> see /etc/rc.shutdown: line 65:
> /sbin/hwclock --directisa --localtime --systohc
>
> you could use ntpdate to set your clock, once a day no more
>
>
>
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