New to ansible, trying to get ping to work but getting Paramiko/SSH errors

[Ravi B]

Hi everyone,

    I'm new to ansible and trying to get the basing ping working on local host (127.0.0.1 in the $ANSIBLE_HOSTS file) but keep running into problems.I thought the problem was python3 that was installed on the machine, but I uninstalled python3 (deleted the python3 binaries and reinstalled ansible from source). I'm still getting the same error with ansible (see the error below in red).

The command "ansible all -m ping" is not working.

# python -V

Python 2.7.11

# pip install --upgrade paramiko

Requirement already up-to-date: paramiko in /usr/local/lib/python2.7/site-packages/paramiko-1.16.0-py2.7.egg

Requirement already up-to-date: pycrypto!=2.4,>=2.1 in /usr/local/lib/python2.7/site-packages/pycrypto-2.6.1-py2.7-linux-x86_64.egg (from paramiko)

Requirement already up-to-date: ecdsa>=0.11 in /usr/local/lib/python2.7/site-packages/ecdsa-0.13-py2.7.egg (from paramiko)

# cat $ANSIBLE_HOSTS

127.0.0.1

# ansible --version

ansible 1.9.4

  configured module search path = None

# ansible all -m ping

No handlers could be found for logger "paramiko.transport"

127.0.0.1 | FAILED => FAILED: Error reading SSH protocol banner[Errno 104] Connection reset by peer

I'm getting the same error with ansible 2 also

# ansible --version

ansible 2.1.0

  config file =

  configured module search path = Default w/o overrides

# ansible all -m ping

No handlers could be found for logger "paramiko.transport"

127.0.0.1 | UNREACHABLE! => {

    "changed": false,

    "msg": "ERROR! Error reading SSH protocol banner[Errno 104] Connection reset by peer",

    "unreachable": true

}

[Chun-Hung Huang]

Any firewall rule with your local machine?

--- in linux try to check your firewall 

$ sudo iptables -L 

Check /etc/hosts.allow and /etc/hosts.deny

Does port 22 open in your local machine?

$ netstat -tupln 

^^

Ravi B於 2016年1月5日星期二 UTC+8上午12時27分04秒寫道：

[Ravi B]

There are no firewall rules that I can see. All installations of ansible was done by ssh-ing to that host, so ssh port is definitely open.

# sudo iptables -L

Chain INPUT (policy ACCEPT)

target     prot opt source               destination

Chain FORWARD (policy ACCEPT)

target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)

target     prot opt source               destination

#  netstat -tupln | grep ":22 "

tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      8969/sshd

tcp        0      0 :::22                       :::*                        LISTEN      8969/sshd

[Toshio Kuratomi]

Ssh 127.0.0.1 works?
Does ansible all -m ping -c ssh work ?

-Toshio

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[Ravi B]

Hi Toshio,

    You're right!! I was not able to ssh to 127.0.0.1.

$ ssh 127.0.0.1

ssh_exchange_identification: Connection closed by remote host

Then I replaced 127.0.0.1 with the fully qualified hostname. After that it worked ( I had to give the --ask-pass option to the command)

$ ansible all -m ping --ask-pass

SSH password:

<host.ip.address.here> | SUCCESS => {

    "changed": false,

    "ping": "pong"

}

Thank you Toshio and Chun-Hung for all your help! I can't thank you enough as it solved my headache.

[Mini]

Hi Ravi,

Could you please tell how you made it work. what does this mean " fully qualified hostname" ?

I am able to ssh using username@ip address but unable to ping it. 

I am using CentOS 7 and the host machine is a Cisco IOS router. 

Thanks!!

[Dick Davies]

An 'Ansible ping' checks that Python is on the remote host - cisco iOS
probably doesn't
have that, so you'd manage it with ansible modules running on your ansible host.

> https://groups.google.com/d/msgid/ansible-project/445ba0a9-665b-4090-ab7d-a86d300b7c66%40googlegroups.com.