Mailinglist Archive: opensuse-autoinstall (57 mails)

[Lars Stavholm <stava@xxxxxxxxxxx>]

Anton Altaparmakov wrote:
> Hi,
> 
> Both on SLES 9 and SLES 10 when you configure the NTP client via the
> autoyast profile, when the system is installed the config file
> /etc/ntp.conf is lacking the line:
> 
> driftfile /var/lib/ntp/drift/ntp.drift
> 
> Which means that every time the machine is rebooted NTP has to establish
> the drift from scratch which means the time oscillates randomly for
> about 15 minutes after booting up.  This in turn causes problems with
> time sensitive applications and in particular our web authentication
> servers have a problem as suddenly things start appearing to be in the
> future which is treated as an error...
> 
> The autoyast snippet we use to do the ntp client config is (I have
> obfuscated the ip addresses of the NTP servers):
> 
> <quote>
>     <ntp-client>
>       <peers config:type="list">
>         <peer>
>           <initial config:type="boolean">false</initial>
>           <key>server</key>
>           <value>blah0.blah.blah</value>
>         </peer>
>         <peer>
>           <initial config:type="boolean">false</initial>
>           <key>server</key>
>           <value>blah1.blah.blah</value>
>         </peer>
>         <peer>
>           <initial config:type="boolean">false</initial>
>           <key>server</key>
>           <value>blah2.blah.blah</value>
>         </peer>
>       </peers>
>       <start_at_boot config:type="boolean">true</start_at_boot>
>     </ntp-client>
> </quote>
> 
> This results in this ntp config file:
> 
> <quote>
> server blah0.blah.blah
> server blah1.blah.blah
> server blah2.blah.blah
> # alternate log file
> # logconfig =syncstatus + sysevents
> # logconfig =all
> 
> # statsdir /tmp/                # directory for statistics files
> # filegen peerstats  file peerstats  type day enable
> # filegen loopstats  file loopstats  type day enable
> # filegen clockstats file clockstats type day enable
> 
> #
> # Authentication stuff
> #
> # keys /etc/ntp.keys            # path for keys file
> # trustedkey 1 2 3 4 5 6 14 15  # define trusted keys
> # requestkey 15                 # key (7) for accessing server variables
> # controlkey 15                 # key (6) for accessing server variables
> </quote>
> 
> Is this a bug or are we missing some magic line(s) in the autoyast
> profile to cause a drift file to be added so our web authentication
> servers stop being confused when they are rebooted?  The autoyast
> documentation does not seem to suggest that there is a way to configure
> a drift file in the autoyast profile so I think this is a bug with
> autoyast...

No idea if it's a bug or not, but we have the following added
to our autoyast.xml (on SuSE Linux 10.2, i.e. !SLES):

[snip]
      <peer>
        <address>/var/lib/ntp/drift/ntp.drift</address>
        <comment></comment>
        <initial_sync config:type="boolean">false</initial_sync>
        <options></options>
        <type>driftfile</type>
      </peer>
[snip]

Cheers
/Lars
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