[one-users] SSH to VM subnetwork problem

[Olivier Sallou]

On 05/04/2013 09:11 PM, Giuliano Casale wrote:
> Hi all,
>
> I have a working installation of OpenNebula 3.8.3, but despite many
> efforts I still cannot ssh from the host into the VMs.
the easiest to debug is to connect  with VNC (from Sunstone or directly
with sometihn like virt-manager).
Of course, to do so , a graphics must be set in template.

You will be able to debug connect issues. Could be a ssh-server start up
issue, or a "no root" ssh connection issue.....
Or a ssh key based only connection issue (all depends on your VM)

Olivier
>
> All hosts have:
> - an eth0 interface listening to the internal network of my institution
> - an eth1 interface for a private switched LAN only between the hosts
> that compose the OpenNebula cloud. The hosts have IPs 10.0.0.X on this
> network.
>
> On all the machines I have run the following commands:
>
> brctl addbr br1
> brctl addif br1 eth1
> ifconfig eth1 down
> ifconfig eth1 0.0.0.0 up
> ifconfig br1 10.0.0.X/24 up    (where X=1,2,... depending on the host).
>
> I then defined in Sunstone a virtual network as follows:
> =============
> ID             : 0
> NAME           : vn-private
> USER           : oneadmin
> GROUP          : oneadmin
> CLUSTER        : cluster
> TYPE           : RANGED
> BRIDGE         : br1
> VLAN           : No
> PHYSICAL DEVICE:
> VLAN ID        :
> USED LEASES    : 2
>
> PERMISSIONS
> OWNER          : um-
> GROUP          : ---
> OTHER          : ---
>
> VIRTUAL NETWORK TEMPLATE
>
>
> RANGE
> IP_START       : 192.168.100.1
> IP_END         : 192.168.100.128
>
> USED LEASES
> LEASE=[ IP="192.168.100.13", MAC="02:00:c0:a8:64:0d", USED="1", VID="14" ]
> LEASE=[ IP="192.168.100.37", MAC="02:00:c0:a8:64:25", USED="1", VID="41" ]
> =============
>
> Now: using VNC, I see that the two VMs .13 and .37 can correctly ping
> each other.However, if I login to any host and do 'ssh
> root at 192.168.100.13' it does not connect to the VMs.
>
> I tried then 'route add -net 192.168.100.0 netmask 255.255.255.0 dev
> br1' and 'route' shows correctly
>
> Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
> 192.168.100.0   *               255.255.255.0   U     0      0        0 br1
>
> but still ssh does not work.
>
> Can someone help me? My ultimate goals are:
> 1) to be able to ssh from the host into the VMs.
> 2) if possible, give internet connectivity to the VMs through eth0.
>
> Thanks,
> Giuliano
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
>

-- 
Olivier Sallou
IRISA / University of Rennes 1
Campus de Beaulieu, 35000 RENNES - FRANCE
Tel: 02.99.84.71.95

gpg key id: 4096R/326D8438  (keyring.debian.org)
Key fingerprint = 5FB4 6F83 D3B9 5204 6335  D26D 78DC 68DB 326D 8438