NOTE: Follow the Security Groups article to ensure your instance can be connected to with SSH

Our images are customized to use public keys instead of a default password which means first time instance login must be done through SSH.

The usernames for the images are as follows

Ubuntu 14,16,18
Centos 6, 7

Ubuntu & MacOS SSH command:

ssh -i <key_name.key> <username>@<instance IP address>


ssh -i cloud.key ubuntu@

See Managing Openstack Credentials for Public Key information and generation

Getting a "permission denied" error?  See if this is the reason

For Windows users you will need a 3rd party application such as MobaXterm in order to use SSH

If you want to use the Openstack web interface console, you can change the user's password with the following command:

sudo passwd <username>


sudo passwd ubuntu

then enter your new password and you will be able to login to the Horizon dashboard console.  You will still need to use your SSH key to login using SSH.  We have disabled password logins for the root account on our images.