Micro Focus Visual COBOL 2.3 for Visual Studio 2015 > Deployment > Deploying to Enterprise Server > Enterprise Server Security > Securing an Enterprise Server Installation > Configuring Security Using OpenLDAP > Installing the Required Schema Extensions

Installing the Required Schema Extensions

Restriction: This topic applies only when the Enterprise Server feature is enabled.

Note: Before you commence this procedure, ensure that you have sufficient access, for example root access, to create files in the $COBDIR/lib directory.

Make sure that the Micro Focus bin directory is in your path.
Start a command prompt and go to the OpenLDAP install directory.
cd to the schema directory.
Generate the MFDS OpenLDAP schema by issuing the following command:
```
mfds -l dc=x 2
```
This creates a schema file, for example mfds_1.08.43.schema in the $COBDIR/lib directory.
Now create a new file called container.schema, which must look like this:
```
objectclass (
       1.2.840.113556.1.3.23
       NAME 'container'
       SUP top
       STRUCTURAL
       MUST ( cn ) 
       MAY ( description ) )
```
The container objectclass is used to group collections of like objects within the LDAP server Directory Information Tree in the Micro Focus extensions.
Note:
It is very important that when this schema file is created, there is no trailing whitespace on any of the lines that the schema file contains.