Vagrant ssh authentication failure

Question

The problem with ssh authentication:

==> default: Clearing any previously set forwarded ports...
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
    default: Adapter 2: bridged
==> default: Forwarding ports...
    default: 22 => 2222 (adapter 1)
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address: 127.0.0.1:2222
    default: SSH username: vagrant
    default: SSH auth method: private key
    default: Error: Connection timeout. Retrying...
    default: Error: Connection timeout. Retrying...
    default: Error: Connection timeout. Retrying...
    default: Error: Connection timeout. Retrying...
    default: Error: Authentication failure. Retrying...
    default: Error: Authentication failure. Retrying...
    default: Error: Authentication failure. Retrying...
    default: Error: Authentication failure. Retrying...
    default: Error: Authentication failure. Retrying...

I can Ctrl+C out of the authentication loop and then successfully ssh in manually.

I performed the following steps on the guest box:

• Enabled Remote Login for All Users.

• Created the ~/.ssh directory with 0700 permissions.

• Created the ~/.ssh/authorized_keys file with 0600 permissions.

• Pasted this public key into ~/.ssh/authorized_keys

I've also tried using a private (hostonly) network instead of the public (bridged) network, using this line in the Vagrantfile:

config.vm.network "private_network", ip: "172.16.177.7"

I get the same output (except Adapter 2: hostonly) but then cannot ssh in manually.

I also tried config.vm.network "private_network", ip: "10.0.0.100".

I also tried setting config.ssh.password in the Vagrantfile. This does output SSH auth method: password but still doesn't authenticate.

And I also tried rebuilding the box and rechecking all the above.

It looks like others have had success with this configuration, so there must be something I'm doing wrong.

I found this thread and enabled the GUI, but that doesn't help.

Answer 1

Another simple solution, in windows, go to the file Homestead/Vagrantfile and add these lines to connect with a username/password instead of a private key:

config.ssh.username = "vagrant"  
config.ssh.password = "vagrant"  
config.ssh.insert_key = false 

So, finally part of the file will look like this :

if File.exists? homesteadYamlPath then
    settings = YAML::load(File.read(homesteadYamlPath))
elsif File.exists? homesteadJsonPath then
    settings = JSON.parse(File.read(homesteadJsonPath))
end

config.ssh.username = "vagrant"  
config.ssh.password = "vagrant"  
config.ssh.insert_key = false 

Homestead.configure(config, settings)

if File.exists? afterScriptPath then
    config.vm.provision "shell", path: afterScriptPath, privileged: false
end

Hope this help ..

Answer 2

also could not get beyond:

default: SSH auth method: private key

When I used the VirtualBox GUI, it told me there was an OS processor mismatch.

To get vagrant up progressing further, in the BIOS settings I had to counter-intuitively:

Disable: Virtualisation

Enable: VT-X

Try toggling these setting in your BIOS.

Answer 3

1. Locate the private key in the host:

vagrant ssh-config
#

Output:

Host default
  ...
  Port 2222
  ...
  IdentityFile /home/me/.vagrant.d/[...]/virtualbox/vagrant_private_key
  ...

2. Store the private key path and the port number in variables:

Use these two commands with the output from above:

pk="/home/me/.vagrant.d/.../virtualbox/vagrant_private_key"
port=2222
#

3. Generate a public key and upload it to the guest machine:

Copy/pasta, no changes needed:

ssh-keygen -y -f $pk > authorized_keys
scp -P $port authorized_keys vagrant@localhost:~/.ssh/
vagrant ssh -c "chmod 600 ~/.ssh/authorized_keys"
rm authorized_keys
#