@rzr said:
Hi @andrew, thank you for your feedback, the fallback option you're suggesting will work but it will downgrade the security of your system, we suggested to update clients:
If users need to take action, I would rather recommend users to do something that raises the security floor, like generating new keys with newer, future-looking ciphers, like ed25519:
ssh-keygen -t ed25519 -C "<email>"
for server in $servers do ; ssh-copy-id $server; done