Today we will configure our OpenLDAP server to store SSH public keys so that the OpenSSH daemon can fetch them and thus authenticate our users.
To do this, we first need two CentOS machines. This is easy to achieve via a KickStart. If you need help building a KickStart server, follow my previous blog post. Then we need a working OpenLDAP server. If you don't have one, then follow my previous blog posts to set one up.