If the domain does not use Kerberos authentication, the Informatica Service Manager creates a cookie that it uses to authenticate your user name in Metadata Manager. The Service Manager creates the cookie when you log in to Metadata Manager.

If you access Metadata Manager again before the cookie expires, the Service Manager uses the authentication information in the cookie to log you in to Metadata Manager. You must have cookies enabled in your browser for the Service Manager to create the cookie.

If the browser session is inactive for 12 hours or you log out of Metadata Manager, the Service Manager deletes the cookie. You can change the timeout for the cookie. To change the timeout value, update the Session.timeOut property in the Metadata Manager imm.properties file.