TNS alias synonym entry

We have a LDAP server serving most of our TNS names resolutions.

But in a specific case I want a special TNS entry, called MONIT, be resolved different in different servers. So I can't use LDAP.

The most usual way to do is to create a FULL TNS entry, in each defined servers, with different MONITs entries. For example:

*server 1:*

> *MONIT =*
> * (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = someserver01)(PORT =
> 1521))*
> * (CONNECT_DATA =*
> * (SERVER = DEDICATED)*
> * (SERVICE_NAME = DB01)*
> * )** )*

*server 2:*

> *MONIT =*
> * (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = someserver02)(PORT =
> 1521))*
> * (CONNECT_DATA =*
> * (SERVER = DEDICATED)*
> * (SERVICE_NAME = DB02)*
> * )** )*

But this entries, for DB01 and DB02 service names, are well defined on LDAP server with some other alias:

*$ tnsping DB01*

> *Used LDAP adapter to resolve the alias*
> *Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST =
> someserver01)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED)
> (SERVICE_NAME = DB01)))**OK (10 msec) *

> *$ tnsping DB02*
> *Used LDAP adapter to resolve the alias*
> *Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST =
> someserver02)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED)
> (SERVICE_NAME = DB02)))**OK (10 msec)*