paramiko: The authenticity of host '192.168.33.110' can't be established.

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1

ansible v1.7.2, running on CentOS release 5.8 (Final)

Sorry for the newbie question, but I’m just starting out with ansible. I’ve set up the SSH public key and a very basic inventory file /etc/ansible/hosts with vm private_network ip. But when I try

$ ansible all -m ping

I get failures like this:

paramiko: The authenticity of host ‘192.168.33.110’ can’t be established.

The ssh-rsa key fingerprint is 558e664be75be1ce063dd32c66069e5b.

Are you sure you want to continue connecting (yes/no)?

yes

192.168.33.110 | FAILED => FAILED: No authentication methods available

I have authorized_keys under .ssh

[vagrant@machine2 .ssh]$ ls -la

total 24

drwx------ 2 vagrant vagrant 4096 Jan 3 2013 .

drwx------ 5 vagrant vagrant 4096 Nov 21 15:22 …

-rw------- 1 vagrant vagrant 409 Jan 3 2013 authorized_keys

[vagrant@machine2 .ssh]$ cat authorized_keys

ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA6NF8iallvQVp2…

Here is configuration in vagrantfile

config.vm.define ‘dev’ do |machine|

machine.vm.hostname = ‘machine2’

machine.vm.network “private_network”, ip: “192.168.33.110”

end

I could do ping on the private_network’s ip.

[vagrant@machine2 ~]$ ping 192.168.33.110

PING 192.168.33.110 (192.168.33.110) 56(84) bytes of data.

64 bytes from 192.168.33.110: icmp_seq=1 ttl=64 time=0.057 ms

64 bytes from 192.168.33.110: icmp_seq=2 ttl=64 time=0.034 ms

…

As you see, ansible used itself ssh-rsa key fingerprint: 558e664be75be1ce063dd32c66069e5b, which is different from the authorized_keys I defined. So what key should I use? should I generate a private key? but I want to use my public key. How could I make it work? or make my first Ad-Hoc Ansible command work?

There is no /etc/ansible/ansible.cfg or ~/.ansible.cfg file.

Thanks,
Diana

2

The first prompt about verifying the hosts is a "known_hosts issue",
ssh keeps this file to verify that the host you are accessing is the
host you know about, in case someone hijacks the IP/dns/fqdn and
presents itself as the same host.

on why you cannot access the host, can you ssh normally into the host?
also using -vvvv with ansible will show debug information about the
connection that might be helpful to figure this out.

3

Hi Brian,

Thanks for the reply.
I think you are right. It is a “known_hosts” issue. And I can’t ssh to the host. I’m working on it. I will let you know when the issue is resolved.

Diana