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From: Shanker Balan <shanker.balan@shapeblue.com>
To: "<users@cloudstack.apache.org>" <users@cloudstack.apache.org>
Subject: Re: Debian 7 does not get hostname from dhcp.
Thread-Topic: Debian 7 does not get hostname from dhcp.
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Date: Mon, 19 Aug 2013 12:54:54 +0000
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On 19-Aug-2013, at 5:32 PM, Gaspare A Silvestri <g.silvestri@netsons.com> w=
rote:

> Hi Shanker,
>
> thank you for your answer.
>
> Which way have we to use the indicated hook? Within the  same password sc=
ript, or as external script to execute at the machine startup?

On a fresh default Debian Guest VM, "vi /etc/dhcp/dhclient-exit-hooks.d/hos=
tname" with the following contents:

vi /etc/dhcp/dhclient-exit-hooks.d/hostname
<start-cut-here>
#!/bin/sh
#
# Update hostname from DHCP
#
if [ "$reason" !=3D BOUND ] && [ "$reason" !=3D RENEW ] && [ "$reason" !=3D=
 REBIND ] && [ "$reason" !=3D REBOOT ]; then
    return
fi

hostname $new_host_name
echo $new_host_name > /etc/hostname
<end-cut-here>

These changes are unrelated to any other scripts you might have.

Hth.
@shankerbalan

>
> Thanks in advance,
>
> Gaspare
>
> On 19/08/2013 12:42, Shanker Balan wrote:
>> On 09-Aug-2013, at 9:42 AM, Prasanna Santhanam <tsp@apache.org> wrote:
>>
>>> FWIW, the debian image of our system VM is Debian 7 and uses the dhcp
>>> client from:
>>>
>>> deb http://http.us.debian.org/debian wheezy-backports main
>>> apt-get install dhcp3-client
>>>
>>> Can you try that and see if it works?
>>
>> Another FWIW: I just looked back at my scripts and I seem to creating a =
DHCP exit hook as below on Debian templates.
>>
>> $ cat /etc/dhcp/dhclient-exit-hooks.d/hostname
>> #!/bin/sh
>> #
>> # Update hostname from DHCP
>> #
>> if [ "$reason" !=3D BOUND ] && [ "$reason" !=3D RENEW ] && [ "$reason" !=
=3D REBIND ] && [ "$reason" !=3D REBOOT ]; then
>>     return
>> fi
>>
>> hostname $new_host_name
>> echo $new_host_name > /etc/hostname
>>
>>
>>> On Thu, Aug 08, 2013 at 09:52:07PM +0000, Musayev, Ilya wrote:
>>>> Perhaps, make sure you don't set the hostname in your template anywher=
e in the config and use dhcp provided hostname instead?
>>>>
>>>> From: Netsons > Roberto Iervolino [mailto:r.iervolino@netsons.com]
>>>> Sent: Thursday, August 08, 2013 3:10 AM
>>>> To: users@cloudstack.apache.org
>>>> Subject: Re: Debian 7 does not get hostname from dhcp.
>>>>
>>>> There is a way to solve this known issue?
>>>>
>>>> Thanks.
>>>>
>>>> [cid:image001.png@01CE945F.FFAC77E0]
>>>>
>>>> Supernova s.r.l.
>>>> Via G. Misiticoni, 3
>>>> 65126 - Pescara
>>>> ITALY
>>>>
>>>>
>>>> www.netsons.com<http://www.netsons.com>
>>>>
>>>> Roberto Iervolino
>>>> IT System Administrator - L2 Support
>>>>
>>>>
>>>> t. (+39) 085 45 100 52
>>>> m. (+39) 393 85 677 48
>>>> e. r.iervolino@netsons.com<mailto:r.iervolino@netsons.com>
>>>>
>>>>
>>>> [View Roberto Iervolino's profile on LinkedIn]<http://it.linkedin.com/=
pub/roberto-iervolino/70/b81/3aa>
>>>>
>>>>
>>>>
>>>> Netsons? ? un marchio registrato dalla Supernova s.r.l.
>>>> Le informazioni trasmesse sono riservate alla persona o alla societ? i=
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aso abbiate ricevuto per errore questa comunicazione, siete pregati di darn=
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i non contengano virus prima di aprirli. Qualunque opinione o affermazione =
presentata in questo messaggio ? da ritenersi propria dell'autore e non rap=
presenta necessariamente la posizione della Societ?.
>>>>
>>>> The information transmitted is intended only for the person or entity =
to which it is addressed and may contain confidential material. Any review,=
 retransmission, dissemination or other use of, or taking of any action in =
reliance upon this information by persons or entities other than the intend=
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>>>> Il 08/08/2013 00:14, David Nalley ha scritto:
>>>>
>>>> On Wed, Aug 7, 2013 at 12:36 PM, Netsons > Roberto Iervolino <
>>>>
>>>> r.iervolino@netsons.com<mailto:r.iervolino@netsons.com>> wrote:
>>>>
>>>>
>>>>
>>>> Hi,
>>>>
>>>>
>>>>
>>>> I've done a template using debian 7.0.0, when i deploy an istance from
>>>>
>>>> this template the VM at the first boot get correctly the hostname from=
 the
>>>>
>>>> DHCP server, then when I reboot the VM does not get the hostname from =
the
>>>>
>>>> DHCP server, and the setted hostname is "localhost".
>>>>
>>>>
>>>>
>>>> I've also created other template using CentOS 6.4 and it works fine.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> There is a known issue with debian 7.0.0? How can i solve it?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> IIRC this is a known issue with Debian and the version of dhclient the=
y
>>>>
>>>> ship.
>>>>
>>>>
>>>>
>>>> --David
>>>>
>>>>
>>>>
>>>
>>> --
>>> Prasanna.,
>>>
>>> ------------------------
>>> Powered by BigRock.com
>>>
>> --
>> @shankerbalan
>>
>> M: +91 98860 60539 | O: +91 (80) 67935867
>> shanker.balan@shapeblue.com | www.shapeblue.com | Twitter:@shapeblue
>> ShapeBlue Services India LLP, 22nd floor, Unit 2201A, World Trade Centre=
, Bangalore - 560 055
>>
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>
>
>

--
@shankerbalan

M: +91 98860 60539 | O: +91 (80) 67935867
shanker.balan@shapeblue.com | www.shapeblue.com | Twitter:@shapeblue
ShapeBlue Services India LLP, 22nd floor, Unit 2201A, World Trade Centre, B=
angalore - 560 055

This email and any attachments to it may be confidential and are intended s=
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