I have several existing EC2 images that work fine. I'm trying to start a new EC2 instance, using the alestic 11.04 image. If I login as root, I see
win-5121g1n6p8t:winston arohner$ ssh -v -i ~/Programming/aws/arohner.pem root@ec2-50-19-4-235.compute-1.amazonaws.com
OpenSSH_5.2p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to ec2-50-19-4-235.compute-1.amazonaws.com [50.19.4.235] port 22.
debug1: Connection established.
debug1: identity file /Users/arohner/Programming/aws/arohner.pem type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8p1 Debian-1ubuntu3
debug1: match: OpenSSH_5.8p1 Debian-1ubuntu3 pat OpenSSH*
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- client aes128-ctr hmac-md5 none
debug1: kex: client- server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<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 'ec2-50-19-4-235.compute-1.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /Users/arohner/.ssh/known_hosts:168
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
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/arohner/Programming/aws/arohner.pem
debug1: read PEM private key done: type RSA
debug1: Authentication succeeded (publickey).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: Remote: Forced command.
Please login as the user "ubuntu" rather than the user "root".
Ok, fine. But if I try to login as ubuntu, I get
win-5121g1n6p8t:winston arohner$ ssh -v -i ~/Programming/aws/arohner.pem ubuntu@ec2-50-19-4-235.compute-1.amazonaws.com
OpenSSH_5.2p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to ec2-50-19-4-235.compute-1.amazonaws.com [50.19.4.235] port 22.
debug1: Connection established.
debug1: identity file /Users/arohner/Programming/aws/arohner.pem type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8p1 Debian-1ubuntu3
debug1: match: OpenSSH_5.8p1 Debian-1ubuntu3 pat OpenSSH*
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- client aes128-ctr hmac-md5 none
debug1: kex: client- server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<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 'ec2-50-19-4-235.compute-1.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /Users/arohner/.ssh/known_hosts:168
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
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/arohner/Programming/aws/arohner.pem
debug1: read PEM private key done: type RSA
debug1: Authentications that can continue: publickey
debug1: No more authentication methods to try.
Since I can login in as root, far enough to get the message to that I should log in as ubuntu, I don't have connection problems, and I don't have key problems. What should I do?