Re: [ovirt-users] adding new node through WAN - fatal: Unable to negotiate a key exchange method [preauth]
On Wed, Nov 30, 2016 at 1:58 PM, Grzegorz Szypa
<grzegorz.szypa(a)gmail.com> wrote:
Hi.
Did you meet ever with problem, when you try to add new node to quite new
oVirt Engine via Gui and get Error :
engine.log:
2016-11-30 12:50:55,453 ERROR
[org.ovirt.engine.core.bll.hostdeploy.AddVdsCommand] (default task-23)
[178c9385] Failed to establish session with host 'node1': SSH session closed
during connection '["my new node"]'
2016-11-30 12:50:55,453 WARN
[org.ovirt.engine.core.bll.hostdeploy.AddVdsCommand] (default task-23)
[178c9385] Validation of action 'AddVds' failed for user
admin@internal-authz. Reasons: VAR__ACTION__ADD,VAR__TYPE__HOST,$server
vmsrv1.szypa.net,VDS_CANNOT_CONNECT_TO_SERVER
in the end node I only got error that there is not possible, to exchange key
between two hosts:
there is log form /var/log/secure:
fatal: Unable to negotiate a key exchange method [preauth]
In network I found that it could be a problem with key exchange method,
which is not available on some host.
SSH connection between this two hosts work fine so I do not understand why
it does not work?
Please try this, from the engine machine, as user root:
ssh -i /etc/pki/ovirt-engine/keys/engine_id_rsa HOST
Replace "HOST" with the name or address you input in the field
"Address"
in the "New Host" dialog. I think that's 'node1', from above.
Does it work? If not, please check sshd configuration/logs on the host.
Best,
--
Didi