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Forum Discussion
Ability to specify which key to use (otherwise: Too many authentication failures)
I was perplexed as to why I could not SSH into a system earlier today. It looks like ssh is simply trying all of the keys in my vault, one after another, though never getting to the one it needs befo...
floris_1P
1Password Team
1Password TeamIt's not an issue with the key itself, but rather the communication mechanism between the SSH server and the SSH client when using RSA keys. If the server supports a more modern RSA algorithm (like rsa-sha2-256), you can add this snippet to your SSH config to opt out of the legacy ssh-rsa algorithm.
HostkeyAlgorithms -ssh-rsa
PubkeyAcceptedAlgorithms -ssh-rsa
However, some servers and some clients only support ssh-rsa for RSA keys. In some cases, simply switching to an Ed25519 key is a feasible workaround. But we're also working on adding better legacy support to the SSH agent, we'll post an update in this thread when that's released.
