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Changing UIDs and GIDs
It's important to know what happens to file ownership in AIX once you make a UID or GID change. If you don't understand the results of altering a UID or GID, you could cause serious issues to your server and environment. 		04 Mar 2008  
 
Non-stop authentication with Linux clusters
As an organization adds applications and services, centralizing authentication and password services can increase security and decrease administrative and developer headaches. However, consolidating any service onto a single server creates reliability concerns. High-availability is especially critical for enterprise authentication services, because in many cases the entire enterprise will come to a stop when authentication stops working. This paper describes how we create a reliable, highly available authentication server using open source software. 		29 Nov 2001  
 
High-availability middleware on Linux, Part 1: Heartbeat and Apache Web server
In this first of five articles, learn what it means for software to be highly available and how to install and set up heartbeat software from the High-Availability Linux project on a two-node system. You'll also learn how to configure the Apache Web server to run as a highly available service. 		12 Oct 2004  
 
High-availability middleware on Linux, Part 5: IBM DB2 Universal Database
Data is at the heart of any business, and access to it should be available with minimum downtime. In this article, take a look at the setup and implementation of a Linux High Availability solution for IBM DB2 Universal Database -- the database management system that delivers a flexible and cost-effective database platform for building robust, on demand business applications. Using this step-by-step guide, you can set up and run a highly available DB2 UDB database. 		14 Jul 2005  
 
High-availability middleware on Linux, Part 4: IBM WebSphere Application Server
In this fourth of five installments on implementing middleware in high-availability configurations, learn a step-by-step method of crafting a highly available configuration for the IBM WebSphere Application Server, and get the flexibility, resilience, and efficiency your on demand environment needs. 		10 Mar 2005  
 
High-availability middleware on Linux, Part 3: IBM LoadLeveler
Workload management is critically important for an on-demand business. IBM LoadLeveler is a job-management system that allows users to run more jobs in less time by matching the jobs' processing needs with the available resources. Maintaining maximum system uptime of the job management system is increasingly important. Learn how you can achieve high availability for a LoadLeveler cluster using the built-in high-availability capabilities of LoadLeveler and further enhancing it using open source high-availability software. 		28 Feb 2005  
 
High-availability middleware on Linux, Part 2: IBM WebSphere MQ
In the second of five installments on implementing middleware in high-availability configurations, learn how to install and configure IBM WebSphere MQ messaging middleware on a heartbeat cluster, providing failover capability in the event of a system malfunction. 		09 Dec 2004  
 
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