[one-users] Problem Login/ssh into vm

Alexander Sibetheros alexsibeth at gmail.com
Wed Dec 18 12:38:20 PST 2013 

But that is exactly the problem. I can access the vm via vnc(from
sunstone), but get login screen(local host login/password which I don't
know). So, I can't check for daemons. I read online that for the images
created for kvm/opennebula access is done via ssh(passwordless).

Because the image I am using is prebuilt for opennebula, I imagine
something is wrong in my controller/node configuration, but do not know
where to look.



On Wed, Dec 18, 2013 at 10:21 PM, Jens Hoffmann <jens.hoffmann at cuesoft.eu>wrote:

>  Can you login into your vms via vnc and investigate, i.e. if ssh daemon
> is running and if ssh keys are correctly inserted into your login-user's
> authorized_keys?
>
> The ping problem  may be a routing problem on your host. Check if the host
> has ip_forwarding enabled such that the host forwards packages between
> "eth0" and "br0", that is between the bridge and your host's physical nic.
> If this does not help, investigate your routing tables and try to track
> your ping's package flow with tcpdump.
>
>
>
>
> Jens
> -- gpg --keyserver pgp.mit.edu --recv-keys 0xDB1CAFB5
>
>
> On 12/18/2013 07:52 PM, Alexander Sibetheros wrote:
>
>  I would like to note that when I added tty-linux - kvm from the
> marketplace, created a simple template(same as the centOS), and run it, I
> was able to login and use the vm. So I know the host works, and my problem
> most likely is in the way ssh works from the controller to vm's...
>
>  Also noteworthy, I cannot ping the vm's from the controller...only from
> the host. Im not sure this is correct or not.
>
>
>
> On Wed, Dec 18, 2013 at 4:48 PM, Alexander Sibetheros <
> alexsibeth at gmail.com> wrote:
>
>> I am following this tutorial, as closely as possible:
>> http://www.opennebula.org/documentation:rel4.4:qs_ubuntu_kvm
>>
>> TEMPLATE 0
>> INFORMATION
>> ID             : 0
>> NAME           : CentOS-6.4
>> USER           : oneadmin
>> GROUP          : oneadmin
>> REGISTER TIME  : 12/16 13:44:54
>>
>> PERMISSIONS
>>
>> OWNER          : um-
>> GROUP          : ---
>> OTHER          : ---
>>
>> TEMPLATE
>> CONTENTS
>> CONTEXT=[
>>   SSH_PUBLIC_KEY="$USER[SSH_PUBLIC_KEY]" ]
>> CPU="1.0"
>> DISK=[
>>   IMAGE="CentOS-6.4_x86_64" ]
>> GRAPHICS=[
>>   LISTEN="0.0.0.0",
>>   TYPE="vnc" ]
>> MEMORY="512"
>> NIC=[
>>   NETWORK="private" ]
>> OS=[
>>   ARCH="x86_64" ]
>> VCPU="1"
>>
>>
>>
>> On Wed, Dec 18, 2013 at 4:35 PM, Carlos Martín Sánchez <
>> cmartin at opennebula.org> wrote:
>>
>>>  Hi Alexander,
>>>
>>>  On Wed, Dec 18, 2013 at 3:28 PM, Alexander Sibetheros <
>>> alexsibeth at gmail.com> wrote:
>>>
>>>  I'll give the docs you sent a look but my configurations where the
>>>> default in the tutorial:
>>>>
>>>> $ oneimage create --name "CentOS-6.4_x86_64" \
>>>>     --path "http://us.cloud.centos.org/i/one/c6-x86_64-20130910-1.qcow2.bz2" \
>>>>     --driver qcow2 \
>>>>     --datastore default
>>>>
>>>> $ onetemplate create --name "CentOS-6.4" --cpu 1 --vcpu 1 --memory 512 \
>>>>     --arch x86_64 --disk "CentOS-6.4_x86_64" --nic "private" --vnc \
>>>>     --ssh
>>>>
>>>>
>>>> Before creating the vm I added the ssh parameters to the user:
>>>>
>>>> """$ EDITOR=vi oneuser update oneadmin
>>>> Add a new line like the following to the template:
>>>> SSH_PUBLIC_KEY="ssh-dss AAAAB3NzaC1kc3MAAACBANBWTQmm4Gt..."
>>>> Substitute the value above with the output of cat ~/.ssh/id_dsa.pub."""
>>>>
>>>> $ onetemplate instantiate "CentOS-6.4" --name "My Scratch VM"
>>>>
>>>>
>>>  Which tutorial are you following?
>>>  And could you paste the output of onetemplate show <id>?
>>>
>>>  Regards
>>>   --
>>> Carlos Martín, MSc
>>> Project Engineer
>>> OpenNebula - Flexible Enterprise Cloud Made Simple
>>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula>
>>>
>>>
>>>   On Wed, Dec 18, 2013 at 3:28 PM, Alexander Sibetheros <
>>> alexsibeth at gmail.com> wrote:
>>>
>>>> I'll give the docs you sent a look but my configurations where the
>>>> default in the tutorial:
>>>>
>>>> $ oneimage create --name "CentOS-6.4_x86_64" \
>>>>     --path "http://us.cloud.centos.org/i/one/c6-x86_64-20130910-1.qcow2.bz2" \
>>>>     --driver qcow2 \
>>>>     --datastore default
>>>>
>>>> $ onetemplate create --name "CentOS-6.4" --cpu 1 --vcpu 1 --memory 512 \
>>>>     --arch x86_64 --disk "CentOS-6.4_x86_64" --nic "private" --vnc \
>>>>     --ssh
>>>>
>>>>
>>>> Before creating the vm I added the ssh parameters to the user:
>>>>
>>>> """$ EDITOR=vi oneuser update oneadmin
>>>> Add a new line like the following to the template:
>>>> SSH_PUBLIC_KEY="ssh-dss AAAAB3NzaC1kc3MAAACBANBWTQmm4Gt..."
>>>> Substitute the value above with the output of cat ~/.ssh/id_dsa.pub."""
>>>>
>>>> $ onetemplate instantiate "CentOS-6.4" --name "My Scratch VM"
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, Dec 18, 2013 at 2:05 PM, Carlos Martín Sánchez <
>>>> cmartin at opennebula.org> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>>  On Wed, Dec 18, 2013 at 12:03 PM, Alexander Sibetheros <
>>>>> alexsibeth at gmail.com> wrote:
>>>>>
>>>>>>  I checked the marketplace.. all vms for xen/vmware bases have
>>>>>> default username/passwords.
>>>>>>  KVM on the otherhand writes: Add `SSH_PUBLIC_KEY` to
>>>>>> contextualization to set root credentials.
>>>>>>
>>>>>
>>>>>  I assume you are using this image from the marketplace:
>>>>>
>>>>> http://docs.opennebula.org/stable/administration/references/schg.html#configuration
>>>>>
>>>>>  Maybe the problem is a wrong syntax in the VM template. Can you
>>>>> paste its contents?
>>>>> It should follow the syntax described here:
>>>>>
>>>>> http://docs.opennebula.org/stable/user/references/template.html?highlight=context#context-section
>>>>>
>>>>>  You can read more about the contextualization mechanism here:
>>>>>
>>>>> http://docs.opennebula.org/stable/user/virtual_machine_setup/context_overview.html
>>>>>
>>>>>  Regards
>>>>>
>>>>>  --
>>>>> Carlos Martín, MSc
>>>>> Project Engineer
>>>>> OpenNebula - Flexible Enterprise Cloud Made Simple
>>>>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula>
>>>>>
>>>>>
>>>>> On Wed, Dec 18, 2013 at 12:03 PM, Alexander Sibetheros <
>>>>> alexsibeth at gmail.com> wrote:
>>>>>
>>>>>>   Unfortunately no..
>>>>>> I checked the marketplace.. all vms for xen/vmware bases have default
>>>>>> username/passwords.
>>>>>>  KVM on the otherhand writes: Add `SSH_PUBLIC_KEY` to
>>>>>> contextualization to set root credentials.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Wed, Dec 18, 2013 at 12:47 PM, Jens Hoffmann <
>>>>>> jens.hoffmann at cuesoft.eu> wrote:
>>>>>>
>>>>>>> Does this link provide correct credentials for your image:
>>>>>>>
>>>>>>> http://opennebula.org/cloud:sandbox:kvm#what_are_the_users_and_the_passwords
>>>>>>> ?
>>>>>>>
>>>>>>>
>>>>>>> Jens
>>>>>>>
>>>>>>> --
>>>>>>> gpg --keyserver pgp.mit.edu --recv-keys 0xDB1CAFB5
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 12/18/2013 11:31 AM, Alexander Sibetheros wrote:
>>>>>>> > I recently set up a simple 2 node opennebula(ubuntu/kvm) (using
>>>>>>> vmware
>>>>>>> > vm's), following the tutorial.
>>>>>>> >
>>>>>>> > I got a centOS vm to run, but cannot log in.
>>>>>>> > I read on other sites that login in is done via ssh and not vnc,
>>>>>>> but
>>>>>>> > whenever I ssh root at ..vm_ip... I get prompted for password which I
>>>>>>> > dont have.
>>>>>>> >
>>>>>>> >
>>>>>>> > I followed this step from the tutorial(before running I ran
>>>>>>> ssh-keygen
>>>>>>> > -t dsa, because the id_dsa.pub file did not exist):
>>>>>>> >
>>>>>>> > """In order to dynamically add ssh keys to Virtual Machines we must
>>>>>>> > add our ssh key to the user template, by editing the user template:
>>>>>>> >
>>>>>>> > $ EDITOR=vi oneuser update oneadmin
>>>>>>> >
>>>>>>> > Add a new line like the following to the template:
>>>>>>> >
>>>>>>> > SSH_PUBLIC_KEY="ssh-dss AAAAB3NzaC1kc3MAAACBANBWTQmm4Gt..."
>>>>>>> >
>>>>>>> > Substitute the value above with the output of |cat
>>>>>>> ~/.ssh/id_dsa.pub|."""
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> > --
>>>>>>> > Alexander Sibetheros
>>>>>>> >
>>>>>>> >
>>>>>>>  > _______________________________________________
>>>>>>> > Users mailing list
>>>>>>> > Users at lists.opennebula.org
>>>>>>> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Users mailing list
>>>>>>> Users at lists.opennebula.org
>>>>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>  --
>>>>>>   Alexander Sibetheros
>>>>>>
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users at lists.opennebula.org
>>>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>>  --
>>>>   Alexander Sibetheros
>>>>
>>>
>>>
>>
>>
>>  --
>>   Alexander Sibetheros
>>
>
>
>
> --
>   Alexander Sibetheros
>  Student at University of Athens,
> Department of Informatics and Telecommunications
>
>
>
>


-- 
Alexander Sibetheros
Student at University of Athens,
Department of Informatics and Telecommunications
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