How to setup Vagrant ssh agent forwarding?

2
votes

My goal is to connect from a VirtualBox VM to another machine using the ssh key authentication. I have created the VM with Vagrant (1.0.5). I have also enabled config.ssh.forward_agent = true (as suggested in this post). Sadly, the ssh forwarding does not seem to be working.

These are the steps (on fresh ubuntu with vagrant and virtualbox):

  1. Log from the host machine to VM (when I use --debug, I see that the forwarding is enabled)

    vagrant ssh

  2. Log from VM (ubuntu 12.04 with injected vagrant ssh key) to external machine 

    ssh -A [email protected]

    to get: Permission denied.

Do I need to perform any additional step to make it work? People advice to use ssh-add -K. It is not clear for me on which machine.

1
ubuntu-12.04chef-infravagrant
Make sure you're not using a ssh-agent within your VM - axsuul
Thx for the suggestion. I have found also this post: stackoverflow.com/questions/10699333/…. It suggests to modify .ssh/config. I will check my VM tomorrow when I get to the office. - Skarab

1 Answers

2
votes

I could not make the ssh forwarding working. My solution is to simply generate new ssh key on the VM:

  1. Log to the VM: vagrant ssh
  2. Generate a new ssh key on the VM: ssh-keygen
  3. Upload the new public ssh to 192.168.0.1: I do it manually. It could be automatize.
  4. ssh -A [email protected] works