I've created a new Oracle Ubuntu VM. I'm trying to access it from my Debian machine in order to install Home-Assistant on it. Is there any remote desktop UI viewer for linux I can use? If not, I'm trying to access via ssh (according to https://docs.oracle.com/en-us/iaas/Content/Compute/Tasks/accessinginstance.htm ) but I get a permission denied error: mylaptop>> ~/Documents $ ssh -i /home/eladb/Documents/ssh-key-1.key ubunto@129.159.135.24 ubunto@129.159.135.24: Permission denied (publickey). What can I do?

Permission denied (publickey) while SSHing my Oracel VM

I've created a new Oracle Ubuntu VM.

I'm trying to access it from my Debian machine in order to install Home-Assistant on it.

Is there any remote desktop UI viewer for linux I can use?
If not, I'm trying to access via ssh (according to https://docs.oracle.com/en-us/iaas/Content/Compute/Tasks/accessinginstance.htm) but I get a permission denied error:

mylaptop>> ~/Documents $ ssh -i /home/eladb/Documents/ssh-key-1.key ubunto@129.159.135.24 ubunto@129.159.135.24: Permission denied (publickey).

What can I do?