title: SSH setup properly but ansible cannot connect
body: <p>My SSH using keys is setup properly.</p>
  
  <pre><code>sudo ssh 10.112.57.193
  Last login: Fri Jul 22 06:46:09 2016 from 10.112.56.104
  root@10.112.57.193 [ ~ ]#
  </code></pre>
  
  <p><code>ansible-playbook</code> run with -vvvv gives below:</p>
  
  <pre><code>fatal: [10.112.57.193]: UNREACHABLE! =&gt; {"changed": false, "msg": "OpenSSH_7.1p2, OpenSSL 1.0.2h-fips  3 May 2016
  debug1: Reading configuration data /etc/ssh/ssh_config
  debug1: auto-mux: Trying existing master
  debug1: Control socket \"/root/.ansible/cp/ansible-ssh-10.112.57.193-22-root\" does not exist
  debug2: ssh_connect: needpriv 0
  debug1: Connecting to 10.112.57.193 [10.112.57.193] port 22.
  debug2: fd 3 setting O_NONBLOCK
  debug1: fd 3 clearing O_NONBLOCK
  debug1: Connection established.
  debug3: timeout: 9999 ms remain after connect
  debug1: permanently_set_uid: 0/0
  debug1: key_load_public: No such file or directory
  debug1: identity file /root/.ssh/id_rsa type -1
  debug1: key_load_public: No such file or directory
  debug1: identity file /root/.ssh/id_rsa-cert type -1
  debug1: key_load_public: No such file or directory
  debug1: identity file /root/.ssh/id_dsa type -1
  debug1: key_load_public: No such file or directory
  debug1: identity file /root/.ssh/id_dsa-cert type -1
  debug1: key_load_public: No such file or directory
  debug1: identity file /root/.ssh/id_ecdsa type -1
  debug1: key_load_public: No such file or directory
  debug1: identity file /root/.ssh/id_ecdsa-cert type -1
  debug1: key_load_public: No such file or directory
  debug1: identity file /root/.ssh/id_ed25519 type -1
  debug1: key_load_public: No such file or directory
  debug1: identity file /root/.ssh/id_ed25519-cert type -1
  debug1: Enabling compatibility mode for protocol 2.0
  debug1: Local version string SSH-2.0-OpenSSH_7.1
  debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6
  debug1: match: OpenSSH_6.6 pat OpenSSH_6.5*,OpenSSH_6.6* compat 0x14000000
  debug2: fd 3 setting O_NONBLOCK
  debug1: Authenticating to 10.112.57.193:22 as 'root'
  debug2: compat_kex_proposal: original KEX proposal: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
  debug2: Compat: skipping algorithm \"curve25519-sha256@libssh.org\"
  debug2: compat_kex_proposal: compat KEX proposal: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
  debug3: hostkeys_foreach: reading file \"/root/.ssh/known_hosts\"
  debug3: record_hostkey: found key type ECDSA in file /root/.ssh/known_hosts:2
  debug3: load_hostkeys: loaded 1 keys from 10.112.57.193
  debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
  debug1: SSH2_MSG_KEXINIT sent
  debug1: SSH2_MSG_KEXINIT received
  debug2: kex_parse_kexinit: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
  debug2: kex_parse_kexinit: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,ssh-rsa
  debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
  debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
  debug2: kex_parse_kexinit: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1,hmac-md5-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
  debug2: kex_parse_kexinit: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1,hmac-md5-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
  debug2: kex_parse_kexinit: zlib@openssh.com,zlib,none
  debug2: kex_parse_kexinit: zlib@openssh.com,zlib,none
  debug2: kex_parse_kexinit: 
  debug2: kex_parse_kexinit: 
  debug2: first_kex_follows 0 
  debug2: reserved 0 
  debug2: kex_parse_kexinit: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
  debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519
  debug2: kex_parse_kexinit: aes256-ctr,aes128-ctr
  debug2: kex_parse_kexinit: aes256-ctr,aes128-ctr
  debug2: kex_parse_kexinit: hmac-sha1
  debug2: kex_parse_kexinit: hmac-sha1
  debug2: kex_parse_kexinit: none,zlib@openssh.com
  debug2: kex_parse_kexinit: none,zlib@openssh.com
  debug2: kex_parse_kexinit: 
  debug2: kex_parse_kexinit: 
  debug2: first_kex_follows 0 
  debug2: reserved 0 
  debug1: kex: server-&gt;client aes128-ctr hmac-sha1 zlib@openssh.com
  debug1: kex: client-&gt;server aes128-ctr hmac-sha1 zlib@openssh.com
  debug1: sending SSH2_MSG_KEX_ECDH_INIT
  debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
  debug1: Server host key: ecdsa-sha2-nistp256 SHA256:EzWODeV66ep6Tdb/AKGeSdNQDItF2ynnSgwl3AWFJZ4
  debug3: hostkeys_foreach: reading file \"/root/.ssh/known_hosts\"
  debug3: record_hostkey: found key type ECDSA in file /root/.ssh/known_hosts:2
  debug3: load_hostkeys: loaded 1 keys from 10.112.57.193
  debug1: Host '10.112.57.193' is known and matches the ECDSA host key.
  debug1: Found key in /root/.ssh/known_hosts:2
  debug2: set_newkeys: mode 1
  debug1: SSH2_MSG_NEWKEYS sent
  debug1: expecting SSH2_MSG_NEWKEYS
  debug2: set_newkeys: mode 0
  debug1: SSH2_MSG_NEWKEYS received
  debug1: SSH2_MSG_SERVICE_REQUEST sent
  debug2: service_accept: ssh-userauth
  debug1: SSH2_MSG_SERVICE_ACCEPT received
  debug2: key: /root/.ssh/id_rsa (0x7ff51fe43280),
  debug2: key: /root/.ssh/id_rsa ((nil)),
  debug2: key: /root/.ssh/id_dsa ((nil)),
  debug2: key: /root/.ssh/id_ecdsa ((nil)),
  debug2: key: /root/.ssh/id_ed25519 ((nil)),
  debug3: input_userauth_banner
  \nVMware vCenter Server Appliance 6.5.0.5100\n\nType: vCenter Server with an embedded Platform Services Controller\n\ndebug1: Authentications that can continue: publickey,password
  debug3: start over, passed a different list publickey,password
  debug3: preferred gssapi-with-mic,gssapi-keyex,hostbased,publickey
  debug3: authmethod_lookup publickey
  debug3: remaining preferred: ,gssapi-keyex,hostbased,publickey
  debug3: authmethod_is_enabled publickey
  debug1: Next authentication method: publickey
  debug1: Offering RSA public key: /root/.ssh/id_rsa
  debug3: send_pubkey_test
  debug2: we sent a publickey packet, wait for reply
  debug1: Server accepts key: pkalg ssh-rsa blen 279
  debug2: input_userauth_pk_ok: fp SHA256:+LtQFZZg4ODIS9pt8BkU/NeO/84Yo3Fz9aXPmO/Q2Kc
  debug3: sign_and_send_pubkey: RSA SHA256:+LtQFZZg4ODIS9pt8BkU/NeO/84Yo3Fz9aXPmO/Q2Kc
  debug1: Enabling compression at level 6.
  debug1: Authentication succeeded (publickey).
  Authenticated to 10.112.57.193 ([10.112.57.193]:22).
  debug1: setting up multiplex master socket
  debug3: muxserver_listen: temporary control path /root/.ansible/cp/ansible-ssh-10.112.57.193-22-root.Tkrk06Le6APUt3iA
  debug2: fd 5 setting O_NONBLOCK
  debug3: fd 5 is O_NONBLOCK
  debug3: fd 5 is O_NONBLOCK
  debug1: channel 0: new [/root/.ansible/cp/ansible-ssh-10.112.57.193-22-root]
  debug3: muxserver_listen: mux listener channel 0 fd 5
  debug2: fd 3 setting TCP_NODELAY
  debug3: ssh_packet_set_tos: set IP_TOS 0x08
  debug1: control_persist_detach: backgrounding master process
  debug2: control_persist_detach: background process is 1571
  debug2: fd 5 setting O_NONBLOCK
  debug1: forking to background
  debug1: Entering interactive session.
  debug2: set_control_persist_exit_time: schedule exit in 60 seconds
  debug1: multiplexing control connection
  debug2: fd 6 setting O_NONBLOCK
  debug3: fd 6 is O_NONBLOCK
  debug1: channel 1: new [mux-control]
  debug3: channel_post_mux_listener: new mux channel 1 fd 6
  debug3: mux_master_read_cb: channel 1: hello sent
  debug2: set_control_persist_exit_time: cancel scheduled exit
  debug3: mux_master_read_cb: channel 1 packet type 0x00000001 len 4
  debug2: process_mux_master_hello: channel 1 slave version 4
  debug2: mux_client_hello_exchange: master version 4
  debug3: mux_client_forwards: request forwardings: 0 local, 0 remote
  debug3: mux_client_request_session: entering
  debug3: mux_client_request_alive: entering
  debug3: mux_master_read_cb: channel 1 packet type 0x10000004 len 4
  debug2: process_mux_alive_check: channel 1: alive check
  debug3: mux_client_request_alive: done pid = 1573
  debug3: mux_client_request_session: session request sent
  debug3: mux_master_read_cb: channel 1 packet type 0x10000002 len 283
  debug2: process_mux_new_session: channel 1: request tty 0, X 0, agent 0, subsys 0, term \"xterm\", cmd \"/bin/sh -c '( umask 77 &amp;&amp; mkdir -p \"` echo $HOME/.ansible/tmp/ansible-tmp-1469171730.18-277524960696371 `\" &amp;&amp; echo ansible-tmp-1469171730.18-277524960696371=\"` echo $HOME/.ansible/tmp/ansible-tmp-1469171730.18-277524960696371 `\" ) &amp;&amp; sleep 0'\", env 0
  debug3: process_mux_new_session: got fds stdin 7, stdout 8, stderr 9
  debug2: fd 8 setting O_NONBLOCK
  debug2: fd 9 setting O_NONBLOCK
  debug1: channel 2: new [client-session]
  debug2: process_mux_new_session: channel_new: 2 linked to control channel 1
  debug2: channel 2: send open
  debug2: callback start
  debug2: client_session2_setup: id 2
  debug1: Sending command: /bin/sh -c '( umask 77 &amp;&amp; mkdir -p \"` echo $HOME/.ansible/tmp/ansible-tmp-1469171730.18-277524960696371 `\" &amp;&amp; echo ansible-tmp-1469171730.18-277524960696371=\"` echo $HOME/.ansible/tmp/ansible-tmp-1469171730.18-277524960696371 `\" ) &amp;&amp; sleep 0'
  debug2: channel 2: request exec confirm 1
  debug3: mux_session_confirm: sending success reply
  debug2: callback done
  debug2: channel 2: open confirm rwindow 0 rmax 32768
  debug1: mux_client_request_session: master session id: 2
  debug2: channel 2: rcvd adjust 2097152
  debug2: channel_input_status_confirm: type 99 id 2
  debug2: exec request accepted on channel 2
  debug1: client_input_channel_req: channel 2 rtype exit-status reply 0
  debug3: mux_exit_message: channel 2: exit message, exitval 1
  debug1: client_input_channel_req: channel 2 rtype eow@openssh.com reply 0
  debug2: channel 2: rcvd eow
  debug2: channel 2: close_read
  debug2: channel 2: input open -&gt; closed
  debug2: channel 2: rcvd ext data 123
  mkdir: cannot create directory ?/root/.ansible/tmp/ansible-tmp-1469171730.18-277524960696371?: No space left on device\ndebug2: channel 2: written 123 to efd 9
  debug2: channel 2: rcvd eof
  debug2: channel 2: output open -&gt; drain
  debug2: channel 2: obuf empty
  debug2: channel 2: close_write
  debug2: channel 2: output drain -&gt; closed
  debug2: channel 2: rcvd close
  debug3: channel 2: will not send data after close
  debug2: channel 2: send close
  debug2: channel 2: is dead
  debug2: channel 2: gc: notify user
  debug3: mux_master_session_cleanup_cb: entering for channel 2
  debug2: channel 1: rcvd close
  debug2: channel 1: output open -&gt; drain
  debug2: channel 1: close_read
  debug2: channel 1: input open -&gt; closed
  debug2: channel 2: gc: user detached
  debug2: channel 2: is dead
  debug2: channel 2: garbage collecting
  debug1: channel 2: free: client-session, nchannels 3
  debug3: channel 2: status: The following connections are open:
    #2 client-session (t4 r0 i3/0 o3/0 fd -1/-1 cc -1)
  
  debug2: channel 1: obuf empty
  debug2: channel 1: close_write
  debug2: channel 1: output drain -&gt; closed
  debug2: channel 1: is dead (local)
  debug2: channel 1: gc: notify user
  debug3: mux_master_control_cleanup_cb: entering for channel 1
  debug2: channel 1: gc: user detached
  debug2: channel 1: is dead (local)
  debug2: channel 1: garbage collecting
  debug1: channel 1: free: mux-control, nchannels 2
  debug3: channel 1: status: The following connections are open:
  
  debug2: set_control_persist_exit_time: schedule exit in 60 seconds
  debug3: mux_client_read_packet: read header failed: Broken pipe
  debug2: Received exit status from master 1
  ", "unreachable": true}
  
          to retry, use: --limit @/usr/share/xml/scap-compliance/scripts/10.112.57.193.retry
  
  PLAY RECAP *********************************************************************
  10.112.57.193              : ok=0    changed=0    unreachable=1    failed=0
  </code></pre>
  
  <p>I have other machines for which this works without any issues. Not sure what is wrong here?</p>