The purpose of OS authentication in connection pool is to use the UserIds of the user to start the appropriate web logic server. OS authentication is the operating system service that is allowed to authenticate the login information of the user. The database security is one of the issues for the web logic servers, so OS authentication is a necessary feature in operating systems. The connection pool and the database can be accessed if the client connection is established. Oracle uses the process of OS authentication while the accessing of the database. The JDBC driver of web logic allows only the user to take control over the databases.