After you install vCenter Server, consider the postinstallation options and requirements.

Install the vSphere Client and make sure that you can access the vCenter Server instance.

Check the license server configuration. A license server is required if this vCenter Server is managing ESX 3.x/ESXi 3.5 hosts. For information about installing the VMware License Server, see the documentation for VMware Infrastructure 3.

For environments that require strong security, VMware recommends that you replace the default certificates on your vCenter Server system with certificates signed by a commercial Certificate Authority (CA). See vSphere 4.0 technical note Replacing vCenter Server Certificates at http://www.vmware.com/resources/techresources/.

When vCenter Server and the database are installed on the same machine, after rebooting the machine, the VMware VirtualCenter Management Webservices service might not start. To start the service manually, select Settings > Control Panel > Administrative Tools > Services > VMware VirtualCenter Management Webservices and start the service. The machine might require several minutes to start the service.

For Oracle databases, note the following:

For the Oracle Instant client, copy ojdbc14.jar to the vCenter Server tomcat directory (<vCenter install location>\Infrastructure\tomcat\lib)

The Oracle 10g client and Oracle 11g client come with ojdbc14.jar (<Install location>\oracle\product\10.2.0\<instance_name>\jdbc\lib or <Install location>\app\Administrator\product\11.1.0\<instance_name>\sqldeveloper\jdbc\lib). The vCenter Server installer copies the file from the Oracle client install location to the vCenter Server tomcat directory (<vCenter install location>\Infrastructure\tomcat\lib)

If the ojdbc14.jar file is not found in the Oracle 10g or Oracle 11g client location, the vCenter Server installer prompts you to copy the file manually. You can download the file from http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/htdocs/jdbc101040.html.