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Message-ID: <53D4EE57.2040700@gmail.com>
Date: Sun, 27 Jul 2014 15:19:35 +0300
From: Alexander Kapshuk <alexander.kapshuk@gmail.com>
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Subject: Re: [gentoo-user] Re: re: which NTPd package to use?
References: <53D39983.8050706@gmail.com> <pan.2014.07.26.12.31.55@googlemail.com> <53D3EFEC.1060100@gmail.com> <53D40ECD.2030602@gmail.com>
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On 07/26/2014 11:25 PM, Dale wrote:
> Alexander Kapshuk wrote:
>> On 07/26/2014 03:31 PM, Holger Hoffstätte wrote:
>>> On Sat, 26 Jul 2014 15:05:23 +0300, Alexander Kapshuk wrote:
>>>
>>>> Which NTPd package would the list recommend using, ntp, openntpd, or
>>>> some other package?
>>> chrony - no competition, even for servers. ntpd is way overrated,
>>> unnecessarily hard to setup correctly, fragile and contrary to
>>> popular belief not even that accurate, unless you use external
>>> HW clocks. Chrony is maintained by Red Hat in cooperation with the
>>> timekeeping code in the kernel.
>>>
>>>> openntpd seems to be easier to set up according to wiki.gentoo.org.
>>> Many many years ago I helped port openntpd to Linux. It was OK-ish at
>>> the time and easier/less hassle than ntpd, but the portable version for
>>> Linux stopped working reliably many years ago due to kernel changes.
>>> IMHO it really should no longer be in the tree since it gives a false
>>> sense of accuracy.
>>>
>>> just my 0.01€..
>>>
>>> -h
>>>
>>>
>> Is this gentoo wiki article still relevant when it comes to configuring
>> chrony on gentoo?
>> http://www.gentoo-wiki.info/Chrony
>>
>> Or should I stick to the instructions given here:
>> /usr/share/doc/chrony-1.29.1/chrony.txt.bz2
>>
>> Thanks.
>>
>>
>>
>
> This is my chrony.conf without all the commented out parts.
>
> server 64.6.144.6
> server 67.159.5.90
> server 67.59.168.233
> server 204.62.14.98
>
> server 69.50.219.51
> server 209.114.111.1
>
> driftfile /etc/chrony.drift
>
> keyfile /etc/chrony/chrony.keys
>
> commandkey 1
>
> logdir /var/log/chrony
> log measurements statistics tracking rtc
>
>
> The last two lines are optional. Use those if you like to be nosy and
> watch it do its thing. I still have ntpdate installed and use it to
> check and see how close it is on occasion. This is what I get from the
> test:
>
> root@fireball / # ntpdate -b -u -q pool.ntp.org
> server 198.144.194.12, stratum 2, offset -0.003320, delay 0.10658
> server 173.44.32.10, stratum 2, offset -0.003313, delay 0.07515
> server 70.60.65.40, stratum 2, offset -0.003059, delay 0.09262
> server 38.229.71.1, stratum 2, offset -0.001002, delay 0.09563
> 26 Jul 15:16:00 ntpdate[10232]: step time server 173.44.32.10 offset
> -0.003313 sec
> root@fireball / #
>
> I did a fair sized upgrade the other day and went to the boot runlevel
> afterwards to restart the services that were updated. I'm pretty sure
> it has been doing its thing since then without me doing anything to it.
> I think you can use mirrorselect to find the best mirrors for your
> area. I can't recall the command but I bet a search of the Gentoo
> forums would find it fairly quick.
>
> Looking at the howto, the only thing I do different is put it in the
> default runlevel. Unless I am in the default runlevel, there is no
> internet access available anyway. No internet access, no way to set the
> clock anyway. ;-)
>
> Hope that helps.
>
> Dale
>
> :-) :-)
>
Terrific. Thanks.