Tips

Tips

Linux servers

• 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 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

• 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

• 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

• How to use Unix file system snapshots

  File system snapshots are a great Unix systems administration tool. Learn how to use them to copy database files with minimal downtime.  Continue Reading

• Clonezilla: Not such a monster with expert guidance

  If your system crashes, the image server Clonezilla on Ubuntu can circumvent time-consuming troubleshooting procedures during recovery.  Continue Reading

• Settings to optimize an XFS file system

  To improve system performance, explore this guide oin XFS file system program settings.  Continue Reading

• Are you prepared for the Unix 2038 problem?

  All 32-bit Unix/Linux-based systems store the system clock time internally as the number of seconds since the "Epoch." The latest time and date that can be represented as seconds-since-the-Epoch in that 32-bit signed integer is 3:14:07 UTC on ...  Continue Reading

• How to use XFS management tools

  While XFS is a valuable file management software, a strong understanding of its management tools is central to reaping its benefits. Learn how to use XFS commands from an expert.  Continue Reading

• How to boost RHEL 5 security, admins' control

  With this three-step approach, securely install Red Hat Enterprise Linux 5.1, bypass more complex security and avoid the ill-advised "install all" approach, advises an expert.  Continue Reading