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  • Managing events with Nagios Event Broker

    Use modules with Nagios Event Broker, a server event output and integration tool, for receiving events and executing code on them. In this tip, you'll learn how NEB functions, what modules are available and how to find other modules. 

  • Red Hat Enterprise Linux 5: All about Xen

    It's no secret that Red Hat Enterprise Linux 5 has Xen built in. But what some users might not understand is just how much of an impact paravirtualization will have on Linux in the data center. 

  • Virtualization on Linux

    Finding affordable virtualization products for Linux. 

  • Qpsmtpd: Configuration and plug-ins

    Qpsmtpd is a Perl-based smtpd daemon used for spam prevention. In the second part of this series, we will find out about different plugs-ins and how to configure qpsmtpd. 

  • OpenOffice Base: Converting data and files from Access

    Consider switching to OpenOffice's Base, an open source alternative to proprietary Microsoft Access. In this tip, an expert tells how to convert Access files to Base and discusses some helpful hints for working with Base. 

  • Security and usability in SELinux

    Cost versus usability for security professionals and organizations. 

  • Nagios: Balancing passive and active checks

    The author of "Network monitoring with Nagios" suggests a workaround for balancing active and passive checks and explains the impact of service failures. 

  • MySQL: Choosing the most important features

    When choosing a database, an expert recommends making sure it can support the volume of data you expect and retrieve it quickly in a readable format. 

  • Table triggers vs. row triggers

    A MySQL expert describes the difference between table triggers and row triggers and what MySQL will support. 

  • Postgres slides in between Oracle, MySQL

    As VoIP provider Vonage's customer base grew, so too did its databases. They didn't warrant more Oracle instances, but ran just fine on PostgresSQL-based EnterpriseDB.