Required SSH settings

[SimonMcNair]

I recently upgraded from Bookworm to Trixie and I didn't think that replacing my sshd_config with the distribution release would cause a conflict (naive I know, and yes, it probably said in the documentation not to replace it but I assumed ciphers would be updated etc).

Then I came across this thread: https://forum.proxmox.com/threads/online-migration-local-local-only-insecure.140343/

Is there a document anywhere that details required SSH settings for Proxmox to work please ? The sshd_configs look different on all 3 nodes of my cluster and I'd prefer them to be homogeneous.

Cheers

 

[bbgeek17]

Hi @SimonMcNair ,
you may also find this interesting: https://kb.blockbridge.com/technote/proxmox-concurrent-vm-migration/index.html

In the meantime, you can run: cat /etc/ssh/sshd_config|grep -vE "^#|$^"

This will allow you to easily compare the configs across your machines. Then, if you have a concern about any particular setting - post it here.

Another option is to check the sshd version : sshd -V

And, if you are concerned about default settings being different, run: sshd -T|sort and compare the output across your hosts.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox