rootdse.com

Every directory answers one question before you ask it anything else: what are you?

This site is about everything after that. Filters, controls and converters for the values Active Directory stores in forms people can't read, written by someone who reads LDAP like plain English.

ldapsearch -H ldap://rootdse.com -b "" -s base "(objectClass=*)"

# extended LDIF
# base <> with scope baseObject

dn:
objectClass: top
namingContexts: dc=filters
namingContexts: dc=tools
namingContexts: dc=controls
supportedLDAPVersion: 3
supportedControl: 1.2.840.113556.1.4.319
subschemaSubentry: cn=schema
currentTime: 20261103000000.0Z

# numEntries: 1

Decode your own directory's RootDSE

namingContexts

What lives here

dc=filters
Reading and building LDAP filters, from presence tests to matching-rule OIDs.
dc=tools
Converters for values stored in forms people can't read: dates, flags, SIDs, GUIDs, logon hours, DNs, LDIF and security descriptors, plus a decoder for bind errors.
dc=controls
The request controls behind paging, sorting, DirSync and change notification.