The audit.config Active Directory audit LDAP settings have to be be something like...
[code]
audit_local_domain = "y"
local_domain = "LDAP://ou=servers,dc=mydomain,dc=local"
[/code]
so try changing
[code]
local_domain = "LDAP://mydomain.local/this ou/andthisou"
[/code]
to
[code]
local_domain = "LDAP://ou=thisou,dc=mydomain,dc=local"
[/code]
I dont know if it supports wild cards, but try it and see for example...
[code]
local_domain = "LDAP://ou=this*,dc=mydomain,dc=local"
[/code]
Let us know if any of this works.
Do bear in mind that you need WMI access in each of the containers (OUs), so be aware of possible policy restrictions, you probably will need to be a full domain admin of the Tree, not just an admin in a particular container.
Have fun...