> LDAP (which is essentially AD under the hood) This is false. LDAP itself is nothing more than a protocol (that's what the P stands for). There are very popul

> LDAP (which is essentially AD under the hood) This is false. LDAP itself is nothing more than a protocol (that's what the P stands for). There are very popular implementations of this protocol (OpenLDAP being just one) but even they are not "AD under the hood". AD = LDAP + Kerberos + Microsoft proprietary extensions So if anything, under the hood of AD you will find LDAP, but not the other way around.