I solved it. Problem was that I was not specifying the user.

On Tuesday, February 17, 2015 at 9:17:49 AM UTC-5, Mihir Joshi wrote:
>
> Yes. Here it is:
>
> - I have tried generating keys for protocol 2.
> - I can ssh into the host from command line. (My machine and the hosts do 
> not share a username)
>
> 192.168.56.101 | FAILED => SSH encountered an unknown error. The output 
> was:
> OpenSSH_5.9p1 Debian-5ubuntu1.3, OpenSSL 1.0.1c 10 May 2012
> debug1: Reading configuration data /home/mihirjoshi/.ssh/config
> debug1: Reading configuration data /etc/ssh/ssh_config
> debug1: /etc/ssh/ssh_config line 19: Applying options for *
> debug1: auto-mux: Trying existing master
> debug1: Control socket 
> "/home/mihirjoshi/.ansible/cp/ansible-ssh-192.168.56.101-22-mihirjoshi" 
> does not exist
> debug2: ssh_connect: needpriv 0
> debug1: Connecting to 192.168.56.101 [192.168.56.101] port 22.
> debug2: fd 3 setting O_NONBLOCK
> debug1: fd 3 clearing O_NONBLOCK
> debug1: Connection established.
> debug3: timeout: 10000 ms remain after connect
> debug3: Incorrect RSA1 identifier
> debug3: Could not load "/home/mihirjoshi/.ssh/id_rsa" as a RSA1 public key
> debug1: identity file /home/mihirjoshi/.ssh/id_rsa type 1
> debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
> debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
> debug1: identity file /home/mihirjoshi/.ssh/id_rsa-cert type -1
> debug3: Incorrect RSA1 identifier
> debug3: Could not load "/home/mihirjoshi/.ssh/id_dsa" as a RSA1 public key
> debug1: identity file /home/mihirjoshi/.ssh/id_dsa type 2
> debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024
> debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024
> debug1: identity file /home/mihirjoshi/.ssh/id_dsa-cert type -1
> debug1: identity file /home/mihirjoshi/.ssh/id_ecdsa type -1
> debug1: identity file /home/mihirjoshi/.ssh/id_ecdsa-cert type -1
> debug1: Remote protocol version 2.0, remote software version 
> OpenSSH_6.6.1p1 Ubuntu-2ubuntu2
> debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2 pat OpenSSH*
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.3
> debug2: fd 3 setting O_NONBLOCK
> debug3: load_hostkeys: loading entries for host "192.168.56.101" from file 
> "/home/mihirjoshi/.ssh/known_hosts"
> debug3: load_hostkeys: found key type ECDSA in file 
> /home/mihirjoshi/.ssh/known_hosts:1
> debug3: load_hostkeys: loaded 1 keys
> debug3: order_hostkeyalgs: prefer hostkeyalgs: 
> [email protected],
> [email protected],
> [email protected]
> ,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,diffie-hellman-group1-sha1
> debug2: kex_parse_kexinit: [email protected],
> [email protected],
> [email protected]
> ,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
> [email protected],[email protected],
> [email protected],[email protected],ssh-rsa,ssh-dss
> debug2: kex_parse_kexinit: 
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
> [email protected]
> debug2: kex_parse_kexinit: 
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
> [email protected]
> debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected]
> ,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,
> [email protected],hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected]
> ,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,
> [email protected],hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: [email protected],zlib,none
> debug2: kex_parse_kexinit: [email protected],zlib,none
> debug2: kex_parse_kexinit: 
> debug2: kex_parse_kexinit: 
> debug2: kex_parse_kexinit: first_kex_follows 0 
> debug2: kex_parse_kexinit: reserved 0 
> debug2: kex_parse_kexinit: [email protected]
> ,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: 
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,
> [email protected],[email protected],
> [email protected]
> ,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
> [email protected]
> debug2: kex_parse_kexinit: 
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,
> [email protected],[email protected],
> [email protected]
> ,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
> [email protected]
> debug2: kex_parse_kexinit: [email protected],
> [email protected],[email protected],[email protected]
> ,[email protected],[email protected],
> [email protected],[email protected],
> [email protected],hmac-md5,hmac-sha1,[email protected],
> [email protected],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,
> [email protected],hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: [email protected],
> [email protected],[email protected],[email protected]
> ,[email protected],[email protected],
> [email protected],[email protected],
> [email protected],hmac-md5,hmac-sha1,[email protected],
> [email protected],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,
> [email protected],hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: none,[email protected]
> debug2: kex_parse_kexinit: none,[email protected]
> debug2: kex_parse_kexinit: 
> debug2: kex_parse_kexinit: 
> debug2: kex_parse_kexinit: first_kex_follows 0 
> debug2: kex_parse_kexinit: reserved 0 
> debug2: mac_setup: found hmac-md5
> debug1: kex: server->client aes128-ctr hmac-md5 [email protected]
> debug2: mac_setup: found hmac-md5
> debug1: kex: client->server aes128-ctr hmac-md5 [email protected]
> debug1: sending SSH2_MSG_KEX_ECDH_INIT
> debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
> debug1: Server host key: ECDSA 
> 9d:f2:72:be:e9:a0:66:18:8e:7c:ef:6e:bb:97:1e:49
> debug3: load_hostkeys: loading entries for host "192.168.56.101" from file 
> "/home/mihirjoshi/.ssh/known_hosts"
> debug3: load_hostkeys: found key type ECDSA in file 
> /home/mihirjoshi/.ssh/known_hosts:1
> debug3: load_hostkeys: loaded 1 keys
> debug1: Host '192.168.56.101' is known and matches the ECDSA host key.
> debug1: Found key in /home/mihirjoshi/.ssh/known_hosts:1
> debug1: ssh_ecdsa_verify: signature correct
> debug2: kex_derive_keys
> 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: Roaming not allowed by server
> debug1: SSH2_MSG_SERVICE_REQUEST sent
> debug2: service_accept: ssh-userauth
> debug1: SSH2_MSG_SERVICE_ACCEPT received
> debug2: key: /home/mihirjoshi/.ssh/id_dsa (0x7f89ed3ebb90)
> debug2: key: /home/mihirjoshi/.ssh/id_rsa (0x7f89ed3e6830)
> debug2: key: /home/mihirjoshi/.ssh/id_ecdsa ((nil))
> debug1: 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 DSA public key: /home/mihirjoshi/.ssh/id_dsa
> debug3: send_pubkey_test
> debug2: we sent a publickey packet, wait for reply
> debug1: Authentications that can continue: publickey,password
> debug1: Offering RSA public key: /home/mihirjoshi/.ssh/id_rsa
> debug3: send_pubkey_test
> debug2: we sent a publickey packet, wait for reply
> debug1: Authentications that can continue: publickey,password
> debug1: Trying private key: /home/mihirjoshi/.ssh/id_ecdsa
> debug3: no such identity: /home/mihirjoshi/.ssh/id_ecdsa
> debug2: we did not send a packet, disable method
> debug1: No more authentication methods to try.
> Permission denied (publickey,password).
>
> On Tuesday, February 17, 2015 at 8:35:36 AM UTC-5, Matt Martz wrote:
>>
>> The error recommends to use -vvvv (4 v's), did you try the 
>> recommendation?
>>
>> On Monday, February 16, 2015, Mihir Joshi <[email protected]> wrote:
>>
>>> Hey,
>>>
>>> When I try to run "ansible -vvv -m apt -a 'xchm' 192.168.56.101", I am 
>>> getting following error:
>>>
>>> <192.168.56.101> 
>>> <192.168.56.101> 
>>> <192.168.56.101> ConnectTimeout=10 PasswordAuthentication=no 
>>> KbdInteractiveAuthentication=no 
>>> ControlPath=/home/mihirjoshi/.ansible/cp/ansible-ssh-%h-%p-%r 
>>> PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey 
>>> ControlMaster=auto ControlPersist=60s
>>> 192.168.56.101 | FAILED => SSH encountered an unknown error during the 
>>> connection. We recommend you re-run the command using -vvvv, which will 
>>> enable SSH debugging output to help diagnose the issue
>>>
>>> Am I missing something?
>>>
>>> Thanks
>>> -
>>> Mihir
>>>
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>>
>>
>> -- 
>> Matt Martz
>> @sivel
>> sivel.net
>>
>>

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