VM ssh permission denied


New Member
Aug 2, 2023
I recently installed Proxmox and started several VM's Ubuntu, Debian and Rocky linux. I am unable to use ssh keys in all VM's for some reason and receiving permission denied. I have deployed these OS's via kvm many times with no issue. If I use ssh-copy the key is transferred but still receive error. I have checked the ,ssh and known_hosts and the ownership and permissions are correct. Any suggestions?

user@LAPTOP:~$ ssh user@192.168.1.xx
hostkeys_find_by_key_hostfile: hostkeys_foreach failed for /home/user/.ssh/known_hosts: Permission denied
The authenticity of host ' (192.168.1.xxx)' can't be established.
ED25519 key fingerprint is SHA256:XFF2lfzk7bkbJOSy4wB77llutT5FSwRrxxjbfiiJEZ8.
This key is not known by any other names
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Failed to add the host to the list of known hosts (/home/user/.ssh/known_hosts).
user@192.168.1.xxx's password:
client_input_hostkeys: hostkeys_foreach failed for /home/user/.ssh/known_hosts: Permission denied
Last login: Wed Aug 2 14:51:06 2023 from 192.168.1.xxx
[gtcnet@localhost ~]$
The permission problem appears to be on your client "LAPTOP", based on the output you provided, at least with "/home/user/.ssh/known_hosts".
Fix that and then try again, add -vvv if necessary.

There is nothing that PVE changes in the guest VM installation, those are normal Linux servers. If you have a common ssh issue across 3 independent VMS, chances are that your client is the issue.

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