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Re: [libvirt] question about the commands: domhostname and hostname



On Wed, Sep 12, 2012 at 2:58 PM, Martin Kletzander <mkletzan redhat com> wrote:
> On 09/12/2012 08:50 AM, Li Zhang wrote:
>> On Wed, Sep 12, 2012 at 2:40 PM, Martin Kletzander <mkletzan 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 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?
>
> domhostname is the guest's hostname, however...
>
>> I saw virsh also has such a command to get guest's name:
>> $virsh domname domain-id-or-uuid
>>
>
> ...this is the name of the domain (basically this function converts ID
> or UUID of the domain to its name).
>
Ah, I see.  -:)

Thanks.

>>>>> 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


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