# Appendix

- [Create SSH Keys with PuTTYgen](/yak-user-doc/appendix/create-ssh-keys-with-puttygen.md)
- [Roles](/yak-user-doc/appendix/roles.md): YaK comes with 4 roles : "Administrator", "Owner", "User" and "Viewer". Each of these roles confers specific privileges, as described in the tables below.