SSH Key Management FAQ

Why can I not delete an SSH key?

You can delete a key once it is off every instance, virtual machine, and training cluster. Select the key’s name to see what uses it, take the key off those resources, then delete it. See Delete an SSH key.

Are SSH keys per project?

No. Your SSH keys belong to you and show in every project.

I added a key in MyAccount. Why is it not in TIR?

On the SSH Keys page, open the Add Key menu and select Sync from MyAccount to copy the keys of your MyAccount default project. See Sync SSH keys.

Does TIR keep the private key of a key I create in the browser?

No. Download it with Download .pem file when you create it. A lost private key is gone for good, so create a new key if that happens. See Create a key in the browser.

Can I use one key on several instances?

Yes. Your keys belong to you, so you can choose the same key on every instance, virtual machine, or training cluster you create, in any project. See Connect with an SSH key.

Which key types does TIR accept?

Ed25519, RSA, and ECDSA public keys. A public key starts with ssh-ed25519, ssh-rsa, or ecdsa-sha2. See What a valid key looks like.

Can I add several keys at once?

No. Add one key at a time; pasting more than one is refused. A key name can have up to 50 characters and must differ from the names of your other keys. See Add an SSH key.

Which key type should I use?

Use ed25519. RSA 4096 is also a good choice. See How SSH keys work.