Tips

Tips

Linux servers

• How to troubleshoot RHEL performance bottlenecks

  This tip provides a step-by-step approach to application-tuning, troubleshooting bottlenecks and enhancing performance on RHEL 5 systems.  Continue Reading

• Which database is best for multiple platforms: Windows, Linux and Unix

  Linux expert Ken Milberg offers advice on database selection for the heterogeneous data center, and recommends Oracle based on market share, support and technical abilities.  Continue Reading

• When to use Unix or Linux, part 2: Applications and support

  Compare Unix and Linux in terms of their availability, virtualization, scalability and server consolidation options and support.  Continue Reading

• Centralized access with iSCSI wraps it up: Open source SANs, part 4

  Our expert explains how to configure an internet Small Computer System Interface (iSCSI) on an open source storage area network.  Continue Reading

• Nagios: Preventing data center downtime

  Nagios' remote monitoring and management capabilities promise to protect data centers from costly downtime. This tip outlines some of Nagios' principal benefits and steps for failover configuration.  Continue Reading

• Using OpenSSL to create and manage certificates

  Establishing an independent certificate authority with OpenSSL enables you to create public key certificates and to verify that these public keys are authentic and that email messages are secure.  Continue Reading

• Setting up DRBD in an open source SAN: Open source SANs, part 2

  Open source storage area networks need to be configured for replicated storage. This tip explains how to do so with the Distributed Replicated Block Device, or DRBD.  Continue Reading

• System Security for Linux CompTIA Certification

  Learn about Linux security practices covered on the Linux CompTIA certification exam in this chapter download.  Continue Reading

• Creating an installation server for SUSE Linux Enterprise Server

  When installing multiple SUSE Linux Enterprise servers, using an installation server can facilitate the process. This tip details how to create an installation server for SUSE Linux Enterprise Server 10.  Continue Reading

• Build your own iSCSI SAN appliances, save money

  An open source storage area network (SAN) is a flexible, highly redundant failover option for the budget-conscious. But consider requirements like iSCSI, DRBD and monitoring software  Continue Reading

• Adding Heartbeat to your open source SAN: Open source SANs, part 3

  Set up monitoring tool Heartbeat in your storage area network (SAN) to ensure the availability of system resources. This tip on configuring SANs outlines how to do so.  Continue Reading

• Unix admin tutorial: How much memory is in this machine?

  It's not always straightforward to get the answer to the burning question: How much memory is in this Unix machine? David Douthitt points readers to the answers for Solaris, AIX, HPUX, Linux, OpenVMS, and FreeBSD environments.  Continue Reading

• Installing PostgreSQL: Infrastructural security concerns

  This tip explains how to install and monitor a secure PostgreSQL database server and some of your primary infrastructural considerations, such as a secure network design.  Continue Reading

• Installing the MySQL database server securely

  Learn how to install the MySQL database securely with these essential steps and guidance. Assess your security risk level, prevent attacks and monitor your system effectively with this tip.  Continue Reading

• Solaris system performance tuning

  Solaris 10 systems need tuning and optimization in order to give the best performance given a certain system configuration and workload. The methods mentioned here are applicable to earlier Solaris versions and some other UNIX-based operating ...  Continue Reading