LDAP
LDAP (Lightweight Directory Access Protocol) is a way to implement a directory service. I've never found easy to deal with it - not much experienced in the topic to be honest - but there are some interesting things that can be done.
Remember man as you pass by
So what you are now, so once was I
So what I am, so you will be
Remember man... eternity.
So what you are now, so once was I
So what I am, so you will be
Remember man... eternity.
