Connect to host - SSH Tunnel

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1

Hello,

I currently have a host that is accessed saw ssh tunnel, I need to manage that host with ansible. How can I do that?

To connect to the host I use the command: ssh -N -R 10000: localhost: 22 user@hostX.

I added this command on a .sh file and run:

ssh -t user@otherserver “./file.sh”

Thanks.

2

just setup this info in your hosts file:

hostx ansible_ssh_host=localhost:10000

then ansible will use the existing tunnel every time to get to hostx

3

Hello

Thanks for your reply, my scenario is as follows:

hostA — used as a bridge to access the hostX (local machine).

HostC — ansible server you need to manage hostX, perform installations and upgrades using ansible.

It is possible ?

Thank you so much.

4

yes, just setup the tunnel and then use ansible as I mentioned in my
previous email.

you can even use ansible to setup the tunnel with a play on the hostC

5

Would using a netcat tunnel work for you?

We had a similar setup were I used to work and used ssh config to automate the tunnel usage.

Host targethoust
HostName targethost
User myuser
ProxyCommand ssh proxyhost nc %h %p 2> /dev/null

http://backdrift.org/transparent-proxy-with-ssh

6

Never really looked into it, but if/when using netcat, does that mean that from your proxy host / bastion to the target host, the connection is in clear text? I would assume that to be the case?

Alex

7

No the tunnel is setup from the bastion to the target to carry a second ssh connection from workstation to target.