Joel Scalera Joel Scalera - 2 months ago 21
Linux Question

How to ssh into EC2 instance without PEM key?

I have created an amazon Ec2 instance and I am trying to ssh into the server from my local machine. I can do so with the PEM key but even after adding my local machine's public key to the authorized keys, I cannot login without it. It just tells me "Permission denied (publickey)." Here is the trace.


debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/joelscalera/.ssh/id_rsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey
debug1: Trying private key: /var/root/.ssh/id_rsa
debug3: no such identity: /var/root/.ssh/id_rsa: No such file or directory
debug1: Trying private key: /var/root/.ssh/id_dsa
debug3: no such identity: /var/root/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /var/root/.ssh/id_ecdsa
debug3: no such identity: /var/root/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /var/root/.ssh/id_ed25519
debug3: no such identity: /var/root/.ssh/id_ed25519: No such file or directory
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Permission denied (publickey).

Answer

You need ssh-agent to supply your PEM file during ssh.

First, start the ssh-agent:

eval `ssh-agent -s`

Then add you PEM key to agent

ssh-add <pem-key>

Now you can ssh without supplying PEM.

Comments