[libvirt] question about the commands: domhostname and hostname

[Li Zhang]

On Wed, Sep 12, 2012 at 2:40 PM, Martin Kletzander <mkletzan at redhat.com> wrote:
> On 09/12/2012 07:59 AM, Li Zhang wrote:
>> Sorry for wrong subject prefix of my mail, correct it. -:)
>>
>
> The [libvirt] tag in the prefix is done automatically, you don't have to
> do that ;)
>
Got it, thanks. :)

>> On Wed, Sep 12, 2012 at 1:57 PM, Li Zhang <zhlcindy at gmail.com> wrote:
>>> Hi all,
>>>
>>> I am testing the virsh commands, and I found that these two commands:
>>>  * domhostname
>>>  * hostname
>>>
>>> From the manual of virsh commands:
>>> * hostname
>>>            Print the hypervisor hostname.
>>> * domhostname domain
>>>            Returns the hostname of a domain, if the hypervisor makes
>>> it available
>>>
>>> It seems that both of them want to get the host name. What's the
>>> difference between them?
>>>
>
> Basically it's what's written. "virsh hostname" will give you the
> hostname of the hypervisor (host), but "virsh domhostname <domain>" is
> trying to get the hostname of the specified domain (guest).
>
Oh, domhostname is the guest's name. Am I right?
I saw virsh also has such a command to get guest's name:
$virsh domname domain-id-or-uuid

>>> From the source code, domhostname only is supported for openvz on 0.10.1.
>>> Will this  be only for openvz in the future?
>>>
>
> I don't know about anyone trying to work on this, but it doesn't mean it
> won't change. It's possible to implement it for some other hypervisors
> as well, but nobody had the need to, I guess.

I see, thanks a lot for your reply!

>
>>> Any idea?
>>>
>>> Thanks a lot in advance. -:)
>>>
>>> --
>>> Best Regards
>>> -Li
>>
>
> Martin
>



-- 

Best Regards
-Li