SSH into Vagrant using a private ip
I've recently been looking at using netcat and also understanding how SSH tunelling works. In order to play around with tunelling specifically, I needed an environment that I could SSH into (e.g. so I could proxy a connection through to).
My initial thought was to use Docker and setting it up with an SSH daemon. Annoyingly I couldn't get it to let me SSH into the running Docker container. So due to a lack of time allowance dedicated to this problem, I decided to work around this by using Vagrant instead.
Now Vagrant automatically sets you up with a
vagrant ssh command, but I still needed an actual dedicated ip that I could use to SSH into the running Vagrant VM. So the solution requires the following items:
- A custom SSH config file
VAGRANTFILE_API_VERSION = "2" Vagrant.configure(VAGRANTFILE_API_VERSION) do |config| config.vm.box = "ubuntu/trusty64" config.vm.network "private_network", ip: "192.168.50.4" end
As you can see, we're building a Ubuntu 14.04.2 VM, and we've defined a private ip address (
192.168.50.4); although this could be any private ip range (e.g.
Note: as noted by Simon Thulbourn 192.168/16 is used more for home/small networks
Host 192.168.50.4 StrictHostKeyChecking no UserKnownHostsFile /dev/null IdentitiesOnly yes User vagrant IdentityFile /path/to/user/directory/vagrant-ssh/.vagrant/machines/default/virtualbox/private_key PasswordAuthentication no
IdentityFilevalue can be retrieved from
Now we have the set-up in place, we can build the VM:
vagrant up --provider virtualbox
Once the VM is created and running we can SSH into the box directly using our defined private ip:
ssh -F ./ssh-config firstname.lastname@example.org