[rhelv6-list] dhclient running TWICE during boot (RHEL 6.2)

["Weiergräber, Oliver H."]

Are you sure "chkconfig network off" has been run so NetworkManager owns the network configuration?  It almost sounds like both "network" and "NetworkManager" are chkconfig'd on.

For reasons I do not understand, this is exactly the default in RHEL 6 - network connections is jointly managed by network and NetworkManager.
I have also seen strange behavior under certain conditions which was immediately rectified by turning one of the two services off!
IMHO users should be urged to decide which one to use - running both seems to work most of the time, but is prone to errors...

Oliver

/Brian/
--
       Brian Long                             |       |
       Corporate Security Programs Org    . | | | . | | | .
                                              '       '
                                              C I S C O

On Apr 30, 2012, at 2:59 AM, Paul Smith wrote:

> On Sun, 2012-04-29 at 22:43 -0700, thomas at redhat.com wrote:
>>> Can anyone explain how this is supposed to work and where I've gone
>>> wrong?  Do other people see duplicated lease files for the same
>>> interface when using DHCP?
>>
>> What does /etc/sysconfig/network-scripts/ifcfg-eth0 look like? I
>> generally set ONBOOT=no if I'm going to let NM manage the interface.
>> What happens if you set ONBOOT=no and NM_CONTROLLED=yes? Do you still
>> see the two dhclient processes?
>
> It's ifcfg-Auto_eth0 actually, since it was created by NM.  And it has
> ONBOOT=yes.  It looks like this:
>
>        HWADDR=05:35:45:D5:F5:35
>        TYPE=Ethernet
>        BOOTPROTO=dhcp
>        DEFROUTE=yes
>        PEERROUTES=yes
>        IPV4_FAILURE_FATAL=yes
>        IPV6INIT=no
>        NAME="Auto eth3"
>        UUID=75a5eeaf-c5b8-45af-b5e9-e95589be7a35
>        ONBOOT=yes
>        DHCP_HOSTNAME=myhost
>
> I was assuming that if ONBOOT was not set properly, then the interface
> would not come up at boot time.  But maybe NetworkManager doesn't pay
> attention to that value?  If so why is it there (note the above file was
> created by NetworkManager, not by me).
>
> I've never heard of NM_CONTROLLED before; is this documented somewhere?
> I didn't see it in the docs.  Looking through what the scripts do, it
> doesn't seem to me that this variable has much use.  It seems to set
> USE_NM to true, but that's only used (as far as I can tell) to set the
> UUID variable if we don't have one... which we do (see above).
>
> _______________________________________________
> rhelv6-list mailing list
> rhelv6-list at redhat.com
> https://www.redhat.com/mailman/listinfo/rhelv6-list


_______________________________________________
rhelv6-list mailing list
rhelv6-list at redhat.com
https://www.redhat.com/mailman/listinfo/rhelv6-list


------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------
Forschungszentrum Juelich GmbH
52425 Juelich
Sitz der Gesellschaft: Juelich
Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498
Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher
Geschaeftsfuehrung: Prof. Dr. Achim Bachem (Vorsitzender),
Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
Prof. Dr. Sebastian M. Schmidt
------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------

Kennen Sie schon unsere app? http://www.fz-juelich.de/app