Hi  Todd,

Thank you for sharing the same, however, I have already checked this 
article.

I have a requirement to connect Host-A then I can connect Host-B. I can’t 
connect Host-B directly. So in this case how to execute the playbook task 
on Host-B from Control Machine? Because my control machine is centralized. 
Hence, my question is how to execute the playbook task on Host-B directly 
from the control machine via bastion host-: Below is an example of how I am 
connecting to the remote host via bastion host using ssh. ssh 
user@<remote-host IP>@<bastion-host-IP> -p 8022 In the playbook I have 
created the inventory, however, while running the same I am getting the 
below error-: cat lab.txt [need_bastion] bastion-host [need_bastion:vars] 
ansible_ssh_common_args='-o StrictHostKeyChecking=no -o 
ProxyJump="user@<remote-host>@<bastion-host>:8022"' PLAY [copy file from 
jump to remote servers] 
********************************************************************************************************
 
TASK [copy node exporter package] 
************************************************************************************************************************
 
Password: Password: fatal: [IP]: UNREACHABLE! => {"changed": false, "msg": 
"Failed to connect to the host via ssh: Connection timed out during banner 
exchange", "unreachable": true} PLAY RECAP 
***********************************************************************************************************************************************
 
IP : ok=0 changed=0 unreachable=1 failed=0 skipped=0 rescued=0 ignored=0 

On Monday, April 3, 2023 at 2:21:53 AM UTC+5:30 Todd Zullinger wrote:

Will McDonald wrote: 
> https://www.jeffgeerling.com/blog/2022/ 
> using-ansible-playbook-ssh-bastion-jump-host 

Odd that uses ProxyCommand in `ansible_ssh_common_args` and 
not the far simpler ProxyJump, which it does mention in the 
~/.ssh/config method. The `-J` shortcut for that is even 
better. 

Perhaps it does that to illsutrate a more complex use case, 
where the bastion runs on a different port, but if you're 
not doing that, it's likely simpler to skip it and use the 
`-J` argument. 

I would expect (but have not tested) this works: 

ansible_ssh_common_args='-J $your_bastion_hostname' 

ProxyJump / -J was added in OpenSSH-7.3 -- so it's surely on 
any host folks would be using as an ansible control host. 

-- 
Todd 

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