I'm new to LDAP and I'm looking to create a new user schema to hold credentials and personal information.
I've found several examples of how to do this (this for example) and they all have a string such as 1.3.6.1.4.1.7165.1.1.1
which I think is the OID arc.
The docs seem to suggest that this is something I need to register for? Is that correct or have I misunderstood?
Say my DN is dc=foo,dc=bar,dc=ie
how do I know what OID arc to use to create a member schema?
Basically you can register an OID arc by getting an IANA enterprise ID in OID arc 1.3.6.1.4.1.
For details see ldapwiki article: How To Get Your Own OID
The enterprise numbers are publicly available as PRIVATE ENTERPRISE NUMBERS.