ssh key

  1. A

    VM migration failed - host key verification failed

    I have a 3 node cluster set up for testing: pve01 and pve02 running 8.1.3 and pve03 added later running 8.2.2 Trying to migrate a VM to or from pve03 fails with the following error: 2024-09-10 13:02:35 # /usr/bin/ssh -e none -o 'BatchMode=yes' -o 'HostKeyAlias=pve03' root@A.B.C.D /bin/true...
  2. A

    [SOLVED] Postmortem: Crontab destroying ssh authorized_hosts, failing out migrations

    Howdy. I've been a proxmox user for about 5 years now, but I've never post here. Time to start with a learning moment! While diagnosing an issue, I discovered a classic PEBCAK problem that I'd like to share just for anyone who may be encountering the same problem. To make a long story short...
  3. W

    Can't install Ceph even on clean Proxmox installs.

    We have been using Proxmox and Ceph for quite a while now; unfortunately, when we attempted to setup a new cluster a few days ago, the Ceph install failed. We are doing all of this as the root user. The error occurs when Ceph attempts to add the ssh keys to localhost error: PermissionError...
  4. K

    authorized_keys file has unknown keys

    Hi, today I looked through /root/.ssh/authorized_keys and there were 3 keys: 1) ssh-rsa from root@pve 2) ssh-rsa from my desktop (from where I usually manage proxmox) 3) ssh-ed25519 from u0_a129@localhost Now, I recognize the 2nd key, but what about the 1st and 3rd keys? I read somewhere that...
  5. P

    SSH Keys in a Proxmox Cluster, resolving replication "Host key verification failed" errors

    Outline: I'm wondering if there's any detailed documentation anywhere about exactly how the various SSH key files are used within a Proxmox cluster? In particular, what is the relationship between /root/.ssh/known_hosts, /etc/ssh/ssh_known_hosts, and /etc/pve/priv/known_hosts, and if replacing...
  6. H

    [SOLVED] Is it possible to set up trusted ssh-certificate (NOT ssh-public-key) for Cloud-Init image?

    I didn't found this feature in proxmox. This makes access to VM's more scalable. Is there any solution?
  7. parrotassassin15

    [SOLVED] SSH Host Verification Failed ( Datacenter Cluster )

    I run a platform called Parrot CTFs which requires a pretty weird and advanced network configuration. This also means I can have a lot of weird issues that sometimes do not make sense. I have a node in my Proxmox Cluster that keeps giving me this error: ( I blurred out the IP Addresses and...
  8. E

    OpenSSH dropping RSA; Proxmox failing 'ssh'.

    Given that OpenSSH is dropping RSA from its default lineup of KeX algorithms, I proceeded to do the same for Proxmox here. Unfortunately, the removal of the RSA-related `ssh_host_rsa_key`/`ssh_host_rsa_key.pub` file resulted in some sporadic web-based popup "Error" message: ``` can't open...
  9. Y

    How to add node if SSH is configured "PermitRootLogin without-password"

    Hello, how can i add a node to a cluster where all nodes are configured with ssh: PermitRootLogin without-password Thanks!
  10. A

    [SOLVED] Host key verification failed on shell

    Hello i got 4 nodes on my cluster 10.10.30.21, 23,24,28 I just do some daily checking on my main node 28 and when i open shell 21 the error was shows up @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @...
  11. be_tnt

    [SOLVED] Proxmox v6 default ssh key in authorized_keys file

    Hello! I just installed a proxmox v6. When I wanted to add my ssh key in authorized_keys file, I see that there is already one ssh key in it. Does the installation create one by default? If yes, what is the usage of it? Thx!

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