ansible unable to ssh but manual ssh successful - ssh

Question

I am trying to ping remote host using module: ping. my hosts file looks like below:
[groupA] HostA ansible_connection=ssh ansible_user=userA
command: ansible -i hosts -m ping all
Manually I am able to ssh successfully using same userA on HostA, but not via ansible
Debug logs from ansible:
No config file found; using defaults Loaded callback minimal of
type stdout, v2.0 ESTABLISH SSH CONNECTION FOR USER:
userA SSH: EXEC ssh -C -vvv -o StrictHostKeyChecking=no
-o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey
-o PasswordAuthentication=no -o User=userA -o ConnectTimeout=10 HostA '/bin/sh -c '"'"'( umask 77 && mkdir -p "echo
/tmp/ansible-userB/ansible-tmp-1473143642.15-125405279117948" &&
echo ansible-tmp-1473143642.15-125405279117948="echo
/tmp/ansible-userB/ansible-tmp-1473143642.15-125405279117948" ) &&
sleep 0'"'"''
Source Host O.S details:
LSB Version:
:base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: RedHatEnterpriseServer Description: Red Hat
Enterprise Linux Server release 6.8 (Santiago) Release: 6.8
Codename: Santiago
Target Host O.S details:
bash-4.1$ lsb_release -a
LSB Version:
:base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: RedHatEnterpriseServer Description: Red
Hat Enterprise Linux Server release 6.8 (Santiago) Release:
6.8 Codename: Santiago
EDIT: Manual commands:
ssh UserA#HostA
//Some lines of sshing to the remote host
-sh$: hostname -f
HostA
-sh$:
EDIT2:
Output from running ssh: EXEC command
OpenSSH_5.3p1, OpenSSL 1.0.1e-fips 11 Feb 2013 debug1: Reading
configuration data /etc/ssh/ssh_config debug1: Applying options for *
debug2: ssh_connect: needpriv 0 debug1: Connecting to hostA [IP port]
port 22. debug2: fd 3 setting O_NONBLOCK debug1: fd 3 clearing
O_NONBLOCK debug1: Connection established. debug3: timeout: 9924 ms
remain after connect debug1: identity file /home/userB/.ssh/identity
type -1 debug1: identity file /home/userB/.ssh/identity-cert type -1
debug3: Not a RSA1 key file /home/userB/.ssh/id_rsa. debug2:
key_type_from_name: unknown key type '-----BEGIN' debug3: key_read:
missing keytype debug3: key_read: missing whitespace debug3: key_read:
missing whitespace debug3: key_read: missing whitespace debug3:
key_read: missing whitespace debug3: key_read: missing whitespace
debug3: key_read: missing whitespace debug3: key_read: missing
whitespace debug3: key_read: missing whitespace debug3: key_read:
missing whitespace debug3: key_read: missing whitespace debug3:
key_read: missing whitespace debug3: key_read: missing whitespace
debug3: key_read: missing whitespace debug3: key_read: missing
whitespace debug3: key_read: missing whitespace debug3: key_read:
missing whitespace debug3: key_read: missing whitespace debug3:
key_read: missing whitespace debug3: key_read: missing whitespace
debug3: key_read: missing whitespace debug3: key_read: missing
whitespace debug3: key_read: missing whitespace debug3: key_read:
missing whitespace debug3: key_read: missing whitespace debug3:
key_read: missing whitespace debug2: key_type_from_name: unknown key
type '-----END' debug3: key_read: missing keytype debug1: identity
file /home/userB/.ssh/id_rsa type 1 debug1: identity file
/home/userB/.ssh/id_rsa-cert type -1 debug1: identity file
/home/userB/.ssh/id_dsa type -1 debug1: identity file
/home/userB/.ssh/id_dsa-cert type -1 debug1: identity file
/home/userB/.ssh/id_ecdsa type -1 debug1: identity file
/home/userB/.ssh/id_ecdsa-cert type -1 debug1: Remote protocol version
2.0, remote software version OpenSSH_5.3 debug1: match: OpenSSH_5.3 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.3 debug2: fd 3 setting
O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent debug3: Wrote 960 bytes for a
total of 981 debug1: SSH2_MSG_KEXINIT received debug2:
kex_parse_kexinit: debug2: kex_parse_kexinit: debug2:
kex_parse_kexinit: debug2: kex_parse_kexinit: debug2:
kex_parse_kexinit: debug2: kex_parse_kexinit: 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:
kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit:
reserved 0 debug2: kex_parse_kexinit: debug2: kex_parse_kexinit:
ssh-rsa,ssh-dss debug2: kex_parse_kexinit: debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: 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: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0 debug2: mac_setup: found
hmac-md5 debug1: kex: server->client debug2: mac_setup: found
hmac-md5 debug1: kex: client->server debug1:
SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting
SSH2_MSG_KEX_DH_GEX_GROUP debug3: Wrote 24 bytes for a total of 1005
debug2: dh_gen_key: priv key bits set: 123/256 debug2: bits set:
506/1024 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting
SSH2_MSG_KEX_DH_GEX_REPLY debug3: Wrote 144 bytes for a total of 1149
debug3: check_host_in_hostfile: host hostA filename
/home/userB/.ssh/known_hosts debug3: check_host_in_hostfile: host
hostA filename /home/userB/.ssh/known_hosts debug3:
check_host_in_hostfile: match line 1 debug3: check_host_in_hostfile:
host IP port filename /home/userB/.ssh/known_hosts debug3:
check_host_in_hostfile: host IP port filename
/home/userB/.ssh/known_hosts debug3: check_host_in_hostfile: match
line 1 debug1: Host 'hostA' is known and matches the RSA host key.
debug1: Found key in /home/userB/.ssh/known_hosts:1 debug2: bits set:
505/1024 debug1: ssh_rsa_verify: signature correct debug2:
kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS
sent debug1: expecting SSH2_MSG_NEWKEYS debug3: Wrote 16 bytes for a
total of 1165 debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS
received debug1: SSH2_MSG_SERVICE_REQUEST sent debug3: Wrote 48 bytes
for a total of 1213 debug2: service_accept: ssh-userauth debug1:
SSH2_MSG_SERVICE_ACCEPT received debug2: key:
/home/userB/.ssh/identity ((nil)) debug2: key: /home/userB/.ssh/id_rsa
(0x7ffb0551e430) debug2: key: /home/userB/.ssh/id_dsa ((nil)) debug2:
key: /home/userB/.ssh/id_ecdsa ((nil)) debug3: Wrote 64 bytes for a
total of 1277 debug3: input_userauth_banner
debug1: Authentications that can continue: debug3: start over, passed
a different list debug3: preferred debug3: authmethod_lookup
gssapi-with-mic debug3: remaining preferred: debug3:
authmethod_is_enabled debug1: Next authentication method: debug3:
Trying to reverse map address IP port. debug1: Unspecified GSS
failure. Minor code may provide more information Credentials cache
file '/tmp/krb5cc_' not found
debug1: Unspecified GSS failure. Minor code may provide more
information Credentials cache file '/tmp/krb5cc_' not found
debug1: Unspecified GSS failure. Minor code may provide more
information
debug1: Unspecified GSS failure. Minor code may provide more
information Credentials cache file '/tmp/krb5cc_' not found
debug2: we did not send a packet, disable method debug3:
authmethod_lookup gssapi-keyex debug3: remaining preferred: debug3:
authmethod_is_enabled gssapi-keyex debug1: Next authentication method:
gssapi-keyex debug1: No valid Key exchange context debug2: we did not
send a packet, disable method debug3: authmethod_lookup publickey
debug3: remaining preferred: ,publickey debug3: authmethod_is_enabled
publickey debug1: Next authentication method: publickey debug1: Trying
private key: /home/userB/.ssh/identity debug3: no such identity:
/home/userB/.ssh/identity debug1: Offering public key:
/home/userB/.ssh/id_rsa debug3: send_pubkey_test debug2: we sent a
publickey packet, wait for reply debug3: Wrote 368 bytes for a total
of 1645 debug1: Server accepts key: pkalg ssh-rsa blen 277 debug2:
input_userauth_pk_ok: debug3: sign_and_send_pubkey: debug1: read PEM
private key done: type RSA debug3: Wrote 640 bytes for a total of 2285
debug1: Enabling compression at level 6. debug1: Authentication
succeeded (publickey). debug1: channel 0: new [client-session] debug3:
ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1:
Requesting no-more-sessions#openssh.com debug1: Entering interactive
session. debug3: Wrote 112 bytes for a total of 2397 debug2: callback
start debug2: client_session2_setup: id 0 debug2: channel 0: request
pty-req confirm 1 debug1: Sending environment. debug3: Ignored env
debug3: Ignored env debug3: Ignored env MANPATH debug3: Ignored env
debug3: Ignored env HOSTNAME debug3: Ignored env
ANSIBLE_HOST_KEY_CHECKING debug3: Ignored env ANSIBLE_SSH_ARGS debug3:
Ignored env debug3: Ignored env TERM debug3: Ignored env SHELL
debug3: Ignored env HISTSIZE debug3: Ignored env QTDIR debug3: Ignored
env OLDPWD debug3: Ignored env QTINC debug3: Ignored env USER debug3:
Ignored env ANSIBLE_REMOTE_TEMP debug3: Ignored env LS_COLORS debug3:
Ignored env debug3: Ignored env TMOUT debug3: Ignored env debug3:
Ignored env PAGER debug3: Ignored env PATH debug3: Ignored env
debug3: Ignored env PWD debug3: Ignored env JAVA_HOME debug3: Ignored
env LMFILES debug3: Ignored env EFS_SERVERNAME debug3: Ignored env
EDITOR debug1: Sending env LANG = en_US.utf8 debug2: channel 0:
request env confirm 0 debug3: Ignored env MODULEPATH debug3: Ignored
env debug3: Ignored env LOADEDMODULES debug3: Ignored env
ANSIBLE_SCP_IF_SSH debug3: Ignored env ANSIBLE_TRANSPORT debug3:
Ignored env HISTCONTROL debug3: Ignored env debug3: Ignored env SHLVL
debug3: Ignored env HOME debug3: Ignored env debug3: Ignored env
PYTHONPATH debug3: Ignored env PBUSER debug3: Ignored env LOGNAME
debug3: Ignored env QTLIB debug3: Ignored env CVS_RSH debug3: Ignored
env LESSOPEN debug3: Ignored env EFS_PLATFORM64 debug3: Ignored env
G_BROKEN_FILENAMES debug3: Ignored env BASH_FUNC_append() debug3:
Ignored env BASH_FUNC_addpath() debug3: Ignored env BASH_FUNC_module()
debug3: Ignored env BASH_FUNC_prepend() debug3: Ignored env
BASH_FUNC_delpath() debug3: Ignored env BASH_FUNC_showpath() debug3:
Ignored env _ debug2: channel 0: request shell confirm 1 debug2: fd 3
setting TCP_NODELAY debug2: callback done debug2: channel 0: open
confirm rwindow 0 rmax 32768 debug3: Wrote 320 bytes for a total of
2717 debug2: channel_input_status_confirm: type 99 id 0 debug2: PTY
allocation request accepted on channel 0 debug2: channel 0: rcvd
adjust 2097152 debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0 Last login: Tue Sep 6
07:24:55 2016 from hostB

Answer 1

Did you try to skip the authentication of ssh?
In the file /etc/ssh/ssh_config or ~/.ssh/config, add following lines.
Host *
StrictHostKeyChecking no
or add following lines in the ansible.cfg
[defaults]
host_key_checking = False