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The Oracle Database Listener is the database server software component that manages the network traffic between the Oracle Database and the client. The Oracle Database Listener listens on a specific network port (default 1521) and forwards network connections to the Database. The Listener is comprised of two binaries: (1) tnslsnr which is the Listener itself and (2) the Listener Control Utility (lsnrctl) which is used to administer the Listener on the server or remotely.
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Where do we start? One of the problems in comprehending a massive product such as the Oracle database is the difficulty of getting a good sense of how the product works without getting lost in the details of implementing specific solutions. This book aims to solve this problem by giving you a thorough grounding in the concepts and technologies that form the foundation of the Oracle Database Server. Oracle also provides an Application Server and business applications, including the E-Business Suite and the Oracle Collaboration Suite, *which are outside the scope of the main body of this book.
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For several major releases of the database, the Oracle documentation has provided a security checklist for customers to follow to help secure Oracle database environments. Since Oracle9i, Oracle has been working with customers to better understand their desired default configurations and harden the Oracle environment. Oracle Database 10g Release 1 Enterprise Manager (EM) Configuration pack introduced the policy manager which has the ability to scan databases and look for security related configuration status. The EM policy manager continues to be enhanced and provides a powerful tool for DBAs and security officers to scan installations for incorrect configuration settings such as unlocked default accounts. The Oracle Technology Network provides additional information on the EM policy manager tool and it’s configuration scanning capabilities.
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This manual guides you through the process of planning and executing database upgrades on the Oracle Database. In addition, this manual provides information about compatibility, about upgrading applications to the new Oracle Database 10g release, and about important changes in the new release, such as initialization parameter changes and data dictionary changes.
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Page 75 Chapter 7 Oracle Database Programming Srecko Howard Glen Van Der Vyver 7.1 Oracle Database Programming Overview This chapter defines the naming standards for Oracle database programming and provides a guide to the correct usage of Data Definition Language, Data Manipulation Language and PL/SQL statements. It also discusses a number of other database programming concepts. Information Systems Developers Handbook Page 76 The idea, thought of as revolutionary not many years ago, that data could be independent of applications, heralded
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Standards are established rules, principles, or measures that are widely used, available, or supplied, and recognized and accepted as having permanent value. These Oracle standards identify steps necessary to implement an Oracle application database at the Centers for Medicare and Medicaid Services (CMS). The standards are intended to compliment the methodology and procedures described in the Roles and Responsibilities document and Oracle reference manuals.

These standards must be followed with care and consideration given to database object naming conventions, appropriate database object usage, and required object parameter settings. Any requests for deviation from these standards must be submitted in writing to, reviewed by, and approved by the Central Oracle DBA staff at CMS
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Some of the most experienced database administrators in the world leave their systems open to casual hacking. Hackers aren’t only lonely 13 year olds with bad skin – they could be a co-worker just trying to get his/her job done without getting tangled up in the bureaucratic red tape of change management or data security. It could also be a more malicious co-worker who likes to know things about other co-workers, customers or patients.
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This checklist is to be used to audit an Oracle database installation. This checklist is just that “a checklist” and does not contain any specific SQL or shell commands because it is intended to be just a list rather than a “how to” document otherwise. It is also important that the Oracle database is not checked in isolation and the surrounding elements such as the operating system used, the network configuration, web access, application servers and clients are considered. Whilst every effort has been made to ensure that this checklist is as complete and comprehensive as possible new issues and vulnerabilities are found every day therefore don’t rely on it to be all encompassing. Regularly check for updates of this list.
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Oracle is a Red Hat Premier Partner adding their efforts to the development and optimization of Red Hat Enterprise Linux as the optimal platform for deploying Oracle solutions in the enterprise. As a part of the Unbreakable Linux initiative, Oracle has ported and certified its major applications, including Oracle Database, Oracle Application Server, Oracle Collaboration Suite, the Oracle E-Business Suite, and Oracle Developer Suite, to Red Hat Enterprise Linux. Demonstrating its commitment to Linux, Oracle also offers direct operating system and Oracle application support to customers running Red Hat Enterprise Linux AS and ES.
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The Oracle Database is the only information management solution that is proven to scale to meet all business requirements on all hardware platforms, from single processor and mid-range multiprocessor systems to large scale SMP, MPP, mainframe, and clustered environments. This proven scalability unlocks the full potential of any hardware and operating system investment and ensures any organization will be able to meet all business requirements in the future.
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