title: Having trouble with ssh and authorized_keys
body: <p>I am ssh-ing from <strong>server1</strong> to <strong>server2</strong>. I generated the <strong>id_rsa</strong> &amp; <strong>id_rsa.pub</strong> files. If I ssh to mike@server2 it works fine, but ssh to john@server2 does not work without password. Both mike &amp; john home directories contain ".ssh" which is chmod 700 and that folder contains "authorized_keys" containing only the contents of the id_rsa.pub file generated previously (and is chmod 600). Contents of both are the same.</p>
  
  <p>Server 1: Linux x86_64 x86_64 x86_64 GNU/Linux</p>
  
  <p>Server 2: AIX 5.3.0.0 64-bit</p>
  
  <p>Command 1, User Mike (works with no password):
      <code>ssh -v -n -o StrictHostKeychecking=no -o NumberOfPasswordPrompts=0 mike@server2 echo Hello</code></p>
  
  <p>~ <code>drwx------    7 mike      mike            4096 Jan 19 2011  .</code></p>
  
  <p>~/.ssh <code>drwx------    2 mike      mike             256 Nov 28 16:39 .ssh</code></p>
  
  <p>~/.ssh/authorized_keys <code>-rw-------    1 mike      mike             823 Apr 06 11:56 .ssh/authorized_keys</code></p>
  
  <hr>
  
  <p>Command 2, User John (needs a password)
      <code>ssh -v -n -o StrictHostKeychecking=no -o NumberOfPasswordPrompts=0 john@server2 echo Hello</code></p>
  
  <p>~ <code>drwx------   12 john    jgroup          4096 Apr 06 23:13 .</code></p>
  
  <p>~/.ssh <code>drwx------    2 john    jgroup           256 Apr 06 23:56 .ssh</code></p>
  
  <p>~/.ssh/authorized_keys <code>-rw-------    1 john    jgroup           414 Apr 06 11:55 .ssh/authorized_keys</code></p>
  
  <p>ssh -v output from above Command 2:</p>
  
  <pre><code>OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008
  debug1: Reading configuration data /etc/ssh/ssh_config
  debug1: Applying options for *
  debug1: Connecting to server2 [X.X.X.X] port 22.
  debug1: Connection established.
  debug1: identity file /home/will/.ssh/identity type -1
  debug1: identity file /home/will/.ssh/id_rsa type 1
  debug1: identity file /home/will/.ssh/id_dsa type -1
  debug1: loaded 3 keys
  debug1: Remote protocol version 2.0, remote software version OpenSSH_5.0
  debug1: match: OpenSSH_5.0 pat OpenSSH*
  debug1: Enabling compatibility mode for protocol 2.0
  debug1: Local version string SSH-2.0-OpenSSH_4.3
  debug1: SSH2_MSG_KEXINIT sent
  debug1: SSH2_MSG_KEXINIT received
  debug1: kex: server-&gt;client aes128-cbc hmac-md5 none
  debug1: kex: client-&gt;server aes128-cbc 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 'server2' is known and matches the RSA host key.
  debug1: Found key in /home/will/.ssh/known_hosts:838
  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
  
  This network/computer system is for the use of authori...
  .........................................................
  
  debug1: Authentications that can continue: publickey,password,keyboard-interactive
  debug1: Next authentication method: publickey
  debug1: Trying private key: /home/will/.ssh/identity
  debug1: Offering public key: /home/will/.ssh/id_rsa
  debug1: Authentications that can continue: publickey,password,keyboard-interactive
  debug1: Trying private key: /home/will/.ssh/id_dsa
  debug1: Next authentication method: keyboard-interactive
  debug1: Next authentication method: password
  debug1: No more authentication methods to try.
  Permission denied (publickey,password,keyboard-interactive).
  </code></pre>
  
  <p>Anyone have ideas of why it would work with one user and not another (with both being on the same server)?</p>