Tips

Tips

• Repairing SUSE Linux Enterprise Server using a Rescue CD

  SUSE Linux Enterprise Server offers a Rescue CD for repairing the system if your hardware causes a crash at reboot. This tip shows you how to use it.  Continue Reading

• Ensuring server time synchronization with NTP on SLES

  Synchronize your SUSE Linux Enterprise Server times using NTP time server. Two servers are recommended for enterprise situations, as redundancy will save the day in case of a disaster.  Continue Reading

• Use DFHLS2WS to expose CICS applications as a Web service

  DFHLS2WS is one of the Web services assistants that allows traditional CICS applications to provide or consume Web services without significant changes and without getting into the details of SOAP or XML coding.  Continue Reading

• 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

• 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

• Uninterruptible power supply load bus synchronization: Yes or no?

  Should you consider paying the additional cost of a Load Bus Synchronization system for your uninterruptible power supply? Data center experts Syska Hennessy weigh in.  Continue Reading

• Selecting a general contractor: Data center construction runbook, Chapter 3

  When you're building a new data center, it pays to bring the general contractor onboard early, rather than bidding out the process and ending up with unqualified subcontractors on your project.  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

• Data center cooling optimization in the virtualized-server world

  How many hamburgers can you cook on a blade server? If your servers are literally cooking there are a variety of systems to consider to keep your equipment cool.  Continue Reading

• Do dual-power supply servers increase redundancy?

  Implementing servers with dual power supplies is a common practice in mission-critical environments. But improper implementation can result in a false sense of power redundancy. This tip explains what can go wrong in your data center.  Continue Reading

• Oracle on RHEL 5: Installation and configuration

  Install and configure Oracle 10 on RHEL 5. This tip shows how to set up a database with Oracle's Database Configuration Assistant (DBCA) and Oracle Enterprise Manager.  Continue Reading

• SUSE Linux Enterprise troubleshooting: Fixing boot problems by repairing a broken initrd

  Having a problem booting SUSE Linux Enterprise on your server? It may be that you have a problem with your initial RAM disk. Expert Sander van Vugt troubleshoots the problem with this step-by-step guide to fixing a broken initrd.  Continue Reading

• Using SETools to manage SELinux policies

  SETools can help SELinux administrators with the daunting task of writing, managing and reporting on policies with the help of tools such as apol, sediff, seaudit and sechecker. Our expert shows you how to setup SETools on your system and introduces...  Continue Reading

• Data center facility control systems

  Data centers are mission-critical environments with serious consequences for failure, but many employ the same commercial-style control systems as office buildings. Contributor Steve Blaine discusses why data centers can benefit from industrial PLC/...  Continue Reading

• CICSPlex System Manager basics

  In this brief overview of CPSM, CICS expert Robert Crawford describes the risks and rewards of using it for system management, automation and workload management.  Continue Reading

• Setting up SSH2 on Red Hat Enterprise Linux

  Find out how to set up SSH2 (Secure Shell) on Red Hat Enterprise Linux (RHEL), using encryption keys instead of passwords in this tutorial. You can use this with either RHEL 4 or RHEL 5.  Continue Reading

• Dual booting vs. virtualization: Using Windows and Linux on the same server

  Interoperability between Linux and Windows can be achieved in two ways: one, by installing each operating system separately via dual booting -- which allows both operating systems to run on the same hardware -- and two, by running one system inside ...  Continue Reading

• HP UNIX performance monitoring fundamentals

  UNIX system performance monitoring involves more than just keeping an eye on the amount of free space or the number of users who are logged in. With the right system performance monitoring know-how, you can look into various files to find out ...  Continue Reading

• OpenOffice 2.0 tutorial: Using SQL View, Query Design and more with Report Writer

  Learn how to use the Query Design and SQL View tools, handle report-specific fields, print fast reports and more in this tutorial on OpenOffice's Report Writer.  Continue Reading

• Linux clusters vs. grids

  Can Linux clusters outperform grid computing? Expert Ken Milberg compares them -- covering Beowulf, HPC, Linux Virtual Server and the Globus Toolkit for grids -- and chooses a winner.  Continue Reading

• CICS program list tables: PLTPI and PLTSD programs

  CICS expert Robert Crawford describes the two types of program list tables (PLT)  Continue Reading

• CICS trace: Getting started, formatting and externalizing

  CICS expert Robert Crawford describes the handy CICS trace tool and gives code for externalizing its output.  Continue Reading

• Running Windows as a VM on Linux with VMware Server

  If you don't want to spend money on an expensive Citrix setup for running Windows and Linux, then try running Windows as a virtual machine (VM) on Linux with VMware Server.  Continue Reading

• Migrating Microsoft Internet Information Server to Apache on Red Hat Linux

  If you're moving to Apache server from Microsoft Internet Information Server, be aware that this migration involves more than just copying files. In this tip, users will learn how to move a site from IIS to Apache on Red Hat, although this is ...  Continue Reading

• Calculating costs of data center cabling infrastructure

  In part two of our series on data center cabling decisions, data center infrastructure expert Carrie Higbie offers a cost calculator for determining TCO on a cabling project.  Continue Reading