This is interesting: <a href="http:&#x2F;&#x2F;serverfault.com&#x2F;questions&#x2F;653792&#x2F;ssh-key-authentication-using-ldap" rel="nofollow">http:&#x2F;&#x2F;serverfault.com&#x2F;questions&#x2F;653792&#x2F;ssh-key-authenticati...</a>