title: SSH Error: Permission denied (publickey,gssapi-with-mic)
body: <p>When trying to connect to EC2 over SSH I get the following error:  </p>
  
  <pre><code>joshua-scotts-macbook-pro:.ec2 joshuascott$ ssh -v -i OFMoodle root@ec2-xxx-xxx-xxxx.compute-1.amazonaws.com
  OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009
  debug1: Reading configuration data /etc/ssh_config
  debug1: Connecting to ec2-xxx-xxx-xxx-xx.compute-1.amazonaws.com [xxx.xxx.xxx.xxx] port 22.
  debug1: Connection established.
  debug1: identity file OFMoodle type -1
  debug1: Remote protocol version 2.0, remote software version OpenSSH_4.7
  debug1: match: OpenSSH_4.7 pat OpenSSH_4*
  debug1: Enabling compatibility mode for protocol 2.0
  debug1: Local version string SSH-2.0-OpenSSH_5.2
  debug1: SSH2_MSG_KEXINIT sent
  debug1: SSH2_MSG_KEXINIT received
  debug1: kex: server-&gt;client aes128-ctr hmac-md5 none
  debug1: kex: client-&gt;server aes128-ctr hmac-md5 none
  debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024&lt;1024&lt;8192) sent
  debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
  debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
  debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
  debug1: Host 'ec2-xxx-xxx-xxx.compute-1.amazonaws.com' is known and matches the RSA host key.
  debug1: Found key in /Users/joshuascott/.ssh/known_hosts:3
  debug1: ssh_rsa_verify: signature correct
  debug1: SSH2_MSG_NEWKEYS sent
  debug1: expecting SSH2_MSG_NEWKEYS
  debug1: SSH2_MSG_NEWKEYS received
  debug1: SSH2_MSG_SERVICE_REQUEST sent
  debug1: SSH2_MSG_SERVICE_ACCEPT received
  debug1: Authentications that can continue: publickey,gssapi-with-mic
  debug1: Next authentication method: publickey
  debug1: Offering public key: pk-xxxxxxxxxxxxxxxxxxxxxxxx.pem
  debug1: Authentications that can continue: publickey,gssapi-with-mic
  debug1: Trying private key: OFMoodle
  debug1: read PEM private key done: type RSA
  debug1: Authentications that can continue: publickey,gssapi-with-mic
  debug1: No more authentication methods to try.
  Permission denied (publickey,gssapi-with-mic).
  </code></pre>
  
  <p>I am completely at a loss. I have several other instances that I can connect to with out any problem.</p>