<P> The MODIFY operation requires that the distinguished name (DN) of the entry be specified, and a sequence of changes . Each change in the sequence must be one of: </P> <Ul> <Li> add (add a new value, which must not already exist in the attribute) </Li> <Li> delete (delete an existing value) </Li> <Li> replace (replace an existing value with a new value) </Li> </Ul> <Li> add (add a new value, which must not already exist in the attribute) </Li> <Li> delete (delete an existing value) </Li>

What is ldap and how does it work