Re-import worker in the cluster

1

Hi guys, I am having trouble re-importing a worker in my cluster.
My worker1 stopped being recognised at some point so i reinstalled the image on the SD card and now i am trying to add it to the cluster.
It seems to be added in the inventory but the air_bibbler plugin is not working. I am trying to ssh into worker1, but i get this message:

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ED25519 key sent by the remote host is
SHA256:yXxJfG2Iijy1LNCTWDOzL4LKJWbV/+YMms0XfFU5jeo.
Please contact your system administrator.
Add correct host key in C:\Users\LabEquipment/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in C:\Users\LabEquipment/.ssh/known_hosts:9
Host key for worker1.local has changed and you have requested strict checking.
Host key verification failed.

I feel stupid for asking this but i have tried several times and i am sure i use “raspberry” as password with no spelling mistakes… what could be the problem?

2

Ah sorry this is an annoying fact of SSH. It has nothing to do with your password. It’s purely a security feature, but looks more scary than it is.

  1. Open up the file C:\Users\LabEquipment/.ssh/known_hosts with a text editor.
  2. Delete the line(s) that starts with worker1.local.
  3. Save and try again.
3

Amazing! Indeed it worked :slight_smile:

Thank you!