migrate error

[informant]

hi all,

i have create 2 proxmox server with install cd.
on server 1 i have create a vm. if i would migrate this to server 2 i get this message:

Dec 30 21:42:59 # /usr/bin/ssh -c blowfish -o 'BatchMode=yes' root@*.*.*.24 /bin/true
Dec 30 21:42:59 Host key verification failed.
Dec 30 21:42:59 ERROR: migration aborted (duration 00:00:00): Can't connect to destination address using public key
TASK ERROR: migration aborted

i see server 1 and server 2 in interface and fence_tool ls said members 2. pvecm n said 2 servers.

the pub keys are in server authorized_key file.

what can i do or where is the error?

regards

 

[udo]

hi all,

i have create 2 proxmox server with install cd.
on server 1 i have create a vm. if i would migrate this to server 2 i get this message:

Dec 30 21:42:59 # /usr/bin/ssh -c blowfish -o 'BatchMode=yes' root@*.*.*.24 /bin/true
Dec 30 21:42:59 Host key verification failed.
Dec 30 21:42:59 ERROR: migration aborted (duration 00:00:00): Can't connect to destination address using public key
TASK ERROR: migration aborted

i see server 1 and server 2 in interface and fence_tool ls said members 2. pvecm n said 2 servers.

the pub keys are in server authorized_key file.

what can i do or where is the error?

regards

Hi,
what happens if you use ssh from each server to the other? Does it work without asking for an password, or alert about an wrong hostkey?

Udo

 

[informant]

Hi,

i have use the command updatecerts and 30 - 45 minutes later its works fine. well i must wait a long time? can i accelerate this?

regards

 

[informant]

hi,

what and where i must change, if ssh port was changed to a other port?

do you have a idea?

thanks and regards

 

[udo]

hi,

what and where i must change, if ssh port was changed to a other port?

do you have a idea?

thanks and regards

Hi,
if I remember right, there was an thread about this long time ago - result: It's an bad idea to change the ssh-port if you like an working cluster

Udo

 

[informant]

Hi,

hmm. OK, thats a not so good information. Do we have no chance with changed SSH Ports?

regards

 

[dietmar]

hmm. OK, thats a not so good information. Do we have no chance with changed SSH Ports?

Why do you need to change the ssh port?

 

[informant]

Hi dietmar,

we have changed all our ssh ports, normaly we use only key files for connect. We are looking also for a possibility, to using keyfiles on migrating or a other ssh port. I hope, you can help us. Very thanks.

regards

 

[dietmar]

We are looking also for a possibility, to using keyfiles

PVE uses pub key auth by default.

 

[informant]

OK, also we can change ssh port and the proxmox system works normal?

 

[dietmar]

OK, also we can change ssh port and the proxmox system works normal?

Never tries that - but IMHO that is not necessary (makes no sense to me).

 

[informant]

Hi dietmar,

if i change ssh port and would migrate a vm i get this error:

Jan 01 18:12:29 # /usr/bin/ssh -c blowfish -o 'BatchMode=yes' root@217.*.*.61 /bin/true
Jan 01 18:12:29 ssh: connect to host 217.*.*.61 port 22: Connection refused
Jan 01 18:12:29 ERROR: migration aborted (duration 00:00:00): Can't connect to destination address using public key
TASK ERROR: migration aborted

If i change back to port 22 its works fine. But jow can i use migration, if ssh port was closed or changed?
I hope you can help me, very thanks.

regards

 

[dietmar]

If i change back to port 22 its works fine. But jow can i use migration, if ssh port was closed or changed?
I hope you can help me, very thanks.

You need to change the default port in /etc/ssh/ssh_config, or /root/.ssh/config

 

[informant]

Hi dietmar,

thanks for answering.

In /etc/ssh/ssh_config is port 22 commented out with #.
In /etc/ssh/sshd_config we have changed it to a other port and reload ssh service.

do we must uncomment the port-line in /etc/ssh/ssh_config?

regards

 

[dietmar]

do we must uncomment the port-line in /etc/ssh/ssh_config?

Yes. BTW, why don't you simply test such things yourself?

 

[informant]

Hi,

i have change it to Port 34343, but the error message is the same.

Jan 05 11:20:35 # /usr/bin/ssh -c blowfish -o 'BatchMode=yes' root@217.*.*.61 /bin/true
Jan 05 11:20:35 ssh: connect to host 217.*.*.61 port 22: Connection refused
Jan 05 11:20:35 ERROR: migration aborted (duration 00:00:00): Can't connect to destination address using public key
TASK ERROR: migration aborted

But i have found a solutions. You must change the Port to the same in all Hosts...

regards