asyd.net

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Extend the schema

The Geek way

You can create attributes, new schema (class) but you can't edit an existing schema.

Read this doc I think the best way to know how to create the .ldif is take a look in existing schema, but, here an example :

dn: CN=asyd,CN=Schema,CN=Configuration,DC=test,DC=com
attributeID: 1.2.841.1.1.1
attributeSyntax: 2.5.5.9
cn: asyd         
isSingleValued: TRUE
lDAPDisplayName: asyd
adminDisplayName: asyd
searchFlags: 0
objectClass: top
objectClass: attributeSchema
name: asyd
instanceType: 2
oMSyntax: 2
OMObjectClass: +s
isMemberOfPartialAttributeSet: TRUE

The Click way

Open a console
Execute regsvr32 schmmgmt.dll
Open mmc
Add the new snapin: Active Directory Schema

Query AD via standard LDAP tools

Note the administrator name depend of your locale.

bind with a user or Administrator (cn=Administrator,cn=users,[suffix])