For those who are looking for a simple ssh bastion but have no need for all of Teleport features, there is also https://github.com/moul/sshportal https://github

For those who are looking for a simple ssh bastion but have no need for all of Teleport features, there is also https://github.com/moul/sshportal https://github.com/moul/sshportal. Administration and registration is done through ssh, with no need for a special client or a web ui, and the whole thing is just a single binary which stores its configuration in sqlite (by default).