[one-users] Can't access to VM through ssh
Andrea Turli
andrea.turli at eng.it
Tue Jul 6 07:29:37 PDT 2010
Hello Carlos,
thank you for your explanation.
On 07/05/2010 03:19 PM, Carlos Martín Sánchez wrote:
> Hello Andrea,
>
> 2010/7/2 Andrea Turli <andrea.turli at eng.it <mailto:andrea.turli at eng.it>>
>
> this public IP is one of our subnet 62.101.90.192/27
> <http://62.101.90.192/27> without DHCP.
>
>
> some network parameters are not correct (like NETWORK; NETMASK and
> BROADCAST). In fact, if I change them manually and restart the
> network, everything works.
> Is there any way to configure it in the "publi.net
> <http://publi.net>" vnet file?
>
> Thank you,
> Andrea
>
>
> The default MAC - IP assignment schema assumes a 255.255.255.0
> netmask, and may not cover all situations. To learn more about this
> script, please visit [0] and [1].
>
> If you need more control, and want to customize the way your machines
> are contextualized, you can use the init.sh script and perform there
> the changes you haven been doing manually.
> You could add this parameters in the template at the CONTEXT section:
>
> CONTEXT = [
> ETH0_NETMASK = "225.225.225.224",
> ]
>
> Please refer to [2] for a complete guide on how to use this
> contextualization feature.
I've customized the CONTEXT section in ttylinux.one like this:
CONTEXT = [
netmask = "225.225.225.224",
hostname = "$NAME",
files = "/srv/cloud/one/one-templates/init.sh",
target = "hdc",
]
which works perfectly but for the netmask parameter. Infact though I've
specified netmask = "225.225.225.224" on the VM I got:
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:03:3E:65:5A:C4
Bcast:62.255.255.255 Mask:255.0.0.0
and it's not correct, obviously.
If I set manually inside "init.sh" the NETMASK value, everything works.
Thank you very much,
Andrea
>
> I hope you find the way to adapt OpenNebula to your infrastructure
> with the instructions given in the documentation, but please don't
> hesitate to ask about any problem you may find.
>
> Regards,
> Carlos
>
> [0]
> http://www.opennebula.org/documentation:rel1.4:vgg#using_the_leases_within_the_virtual_machine
> [1]
> http://dev.opennebula.org/projects/opennebula/repository/revisions/master/show/share/scripts
> [2] http://www.opennebula.org/documentation:rel1.4:cong
>
>>
>> Carlos Martín, Cloud Technology Engineer/Researcher
>> DSA Research Group: web http://dsa-research.org and blog
>> http://blog.dsa-research.org
>> OpenNebula Open Source Toolkit for Cloud Computing:
>> http://www.OpenNebula.org
>>
>>
>> El 30 de junio de 2010 16:18, Andrea Turli <andrea.turli at eng.it
>> <mailto:andrea.turli at eng.it>> escribió:
>>
>> Hi Carlos,
>>
>>
>> On 06/30/2010 04:07 PM, Carlos Martín Sánchez wrote:
>>> Hi Andrea,
>>>
>>> Did you manage to access the VM through ssh? or are you
>>> using VNC?
>> Not yet, I can access through virt-manager or virsh to the VM
>> but not through ssh, cause network doesn't work.
>>
>>>
>>> If you can't ping anything from the VM, maybe you could try
>>> adding other VMs to that private network and check if they
>>> see each other.
>>> Or just configure the VM template to attach a network
>>> interface to the public network.
>>>
>> Any ideas?
>>
>>
>>
>>> Regards,
>>>
>>> Carlos Martín, Cloud Technology Engineer/Researcher
>>> DSA Research Group: web http://dsa-research.org and blog
>>> http://blog.dsa-research.org
>>> OpenNebula Open Source Toolkit for Cloud Computing:
>>> http://www.OpenNebula.org
>>>
>>>
>>> 2010/6/28 Andrea Turli <andrea.turli at eng.it
>>> <mailto:andrea.turli at eng.it>>
>>>
>>> Hi all,
>>>
>>> unfortunately also running the fsck on the .img didn't
>>> solve the problem. Here my situation:
>>>
>>> - 1 x frontend: ubuntu 10.04 - KVM - NFS
>>> - 1 x cluster node: ubuntu 10.04 - KVM - NFS
>>>
>>> A ttylinux VM has been started correctly on the worker
>>> node. From the front end:
>>> # onevm list
>>> ID USER NAME STAT CPU MEM
>>> HOSTNAME TIME
>>> 21 oneadmin ttylinux runn 0 65536 grids21.eng.it
>>> <http://grids21.eng.it> 00 00:10:22
>>>
>>> # onevnet list
>>> ID USER NAME TYPE BRIDGE #LEASES
>>> 8 oneadmin public Ranged br0 0
>>> 9 oneadmin private Fixed br0 1
>>>
>>>
>>> The ttylinux VM shows this:
>>> # ifconfig
>>> eth0 ..... inet address 192.168.0.6 ...
>>>
>>> but I cannot ping anything from this VM
>>>
>>>
>>> To help the investigation, here the bctrl show command
>>> on the cluester node
>>> $ brctl show
>>> bridge name bridge id STP enabled interfaces
>>> br0 8000.0019b9e57ae5 no eth0 vnet0
>>> virbr0 8000.000000000000 yes
>>>
>>> Thank you again for any help,
>>> Andrea
>>>
>>>
>>> On 06/26/2010 09:50 AM, ranjith k wrote:
>>>> hello,
>>>> run the command "qemu-syetm_x86 ttylinux.img" from the
>>>> ttylinux image directory..you can see a window and will
>>>> start boot ttylinux...
>>>> and asked password for recover from the disk failure
>>>> after entering the password "password" you just run the
>>>> command "fsck /dev/hda1" it will remove the error and
>>>> properly shutdown the system by typing the command halt
>>>> or shutdown ....after the correct shutdown and close
>>>> the window ...and try to run the ttylinux again and
>>>> verify...is it ok then again shutdown correctly and
>>>> copy this ttylinux image for your cloud .....
>>>>
>>>> On Fri, Jun 25, 2010 at 3:51 PM, Andrea Turli
>>>> <andrea.turli at eng.it <mailto:andrea.turli at eng.it>> wrote:
>>>>
>>>> Dear all,
>>>>
>>>> I'm trying to access through ssh to my instance of
>>>> ttylinux VM created following this guide
>>>> http://www.opennebula.org/documentation:rel1.4:vmg
>>>> The VM is running and I've this IP address
>>>> (192.168.0.5) according to the "Small Network"
>>>> network definition but I cannot neither ping it not
>>>> access it on ssh.
>>>>
>>>> I've seen also this thread
>>>> http://lists.opennebula.org/pipermail/users-opennebula.org/2010-June/002220.html
>>>> with a similar problem, but also fsck on that VM
>>>> doesn't help me to solve the situation.
>>>>
>>>> Could it be related to the network configuration of
>>>> my kvm host?
>>>>
>>>> --
>>>> Andrea Turli
>>>> Ricercatore
>>>> Direzione Ricerca e Innovazione
>>>> andrea.turli at eng.it <mailto:andrea.turli at eng.it>
>>>>
>>>> Engineering Ingegneria Informatica spa
>>>> Via Riccardo Morandi, 32 00148 Roma (RM)
>>>> Tel. +39 06 8307 4710
>>>> Fax +39 06 8307 4200
>>>> www.eng.it <http://www.eng.it>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opennebula.org
>>>> <mailto:Users at lists.opennebula.org>
>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>
>>>>
>>>
>>>
>>> --
>>> Andrea Turli
>>> Ricercatore
>>> Direzione Ricerca e Innovazione
>>> andrea.turli at eng.it <mailto:andrea.turli at eng.it>
>>>
>>> Engineering Ingegneria Informatica spa
>>> Via Riccardo Morandi, 32 00148 Roma (RM)
>>> Tel. +39 06 8307 4710
>>> Fax +39 06 8307 4200
>>> www.eng.it <http://www.eng.it>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> <mailto:Users at lists.opennebula.org>
>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>
>>>
>>
>>
>> --
>> Andrea Turli
>> Ricercatore
>> Direzione Ricerca e Innovazione
>> andrea.turli at eng.it <mailto:andrea.turli at eng.it>
>>
>> Engineering Ingegneria Informatica spa
>> Via Riccardo Morandi, 32 00148 Roma (RM)
>> Tel. +39 06 8307 4710
>> Fax +39 06 8307 4200
>> www.eng.it <http://www.eng.it>
>>
>>
>>
>>
>
>
> --
> Andrea Turli
> Ricercatore
> Direzione Ricerca e Innovazione
> andrea.turli at eng.it <mailto:andrea.turli at eng.it>
>
> Engineering Ingegneria Informatica spa
> Via Riccardo Morandi, 32 00148 Roma (RM)
> Tel. +39 06 8307 4710
> Fax +39 06 8307 4200
> www.eng.it <http://www.eng.it>
>
>
>
>
> Carlos Martín, Cloud Technology Engineer/Researcher
> DSA Research Group: web http://dsa-research.org and blog
> http://blog.dsa-research.org
> OpenNebula Open Source Toolkit for Cloud Computing:
> http://www.OpenNebula.org
--
Andrea Turli
Ricercatore
Direzione Ricerca e Innovazione
andrea.turli at eng.it
Engineering Ingegneria Informatica spa
Via Riccardo Morandi, 32 00148 Roma (RM)
Tel. +39 06 8307 4710
Fax +39 06 8307 4200
www.eng.it
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