LDAP URI SCHEMA (described in RFC2255) ldap://<host>/<dn>[?<attrs>[?<scope>[?<filter>[?<extensions>]]]]
Constants
SCOPE = [ SCOPE_ONE = 'one', SCOPE_SUB = 'sub', SCOPE_BASE = 'base', ].freeze
COMPONENT = [ :scheme, :host, :port, :dn, :attributes, :scope, :filter, :extensions, ].freeze
DEFAULT_PORT = 389