Perform these steps to enable WebSphere Global Security:
In the administrative console, click Security --> Global Security to configure the rest of the security settings and enable security. When you set up your security configuration, the Global Security configuration should be performed last. This is because this page performs a final validation of the security configuration.
Configure the global security settings.
Make sure that Enable global security is selected so security is enabled when the server restarts.
Click OK or Apply. Your configuration is validated. Informational messages appear at the top of the page. If the messages are in red text, a problem has occurred with the security validation. Review your configuration to ensure the user registry settings are accurate. In some cases the LTPA configuration may not be fully specified.
If there are no validation problems with your security, then store the configuration for use by the server the next time it is restarted. To save the configuration, click Save at the top of the page in the administrative console. This action writes the settings out to the configuration repository.
Logoff the administrative console. Click Logout.
Stop the server:
/QIBM/ProdData/WebASE51/ASE/bin/stopServer -instance instanceName serverName
where instanceName is the name of your instance and server name is the name of your server.
Note: After security has been enabled, you need an user ID and password to run the stopServer script.
In Qshell, start the server with the startServer command, for example startServer myServer.
If you have any problems restarting the server, review the output logs in the logs subdirectory of your instance. See Troubleshooting: Security in the Troubleshooting topic for more information.