Tips

Tips

• Multi-core systems vs. multi-CPU systems

  Can you get better performance from a dual-core system or a dual-processor system? This article evaluates the two configurations and determines that multi-core chips tend to be more efficient than multi-CPU systems.  Continue Reading

• What to look for in a Web application security testing tool

  If you do a lot of Web application security scanning, any testing tool you use must have these features, says security expert Kevin Beaver. They will save you lots of time and effort and will increase the number of valid vulnerabilities found.  Continue Reading

• How to test Web site login security

  Input validation is critical for the security of Web sites. Here's a techniques you can use to make sure your site isn't vulnerable to SQL injection.  Continue Reading

• How to detect data corruption in files and folders

  Data corruption that occurs within a file or folder will usually go unnoticed if you're simply backing up the data and testing the backup by restoring it elsewhere. If the files or folders that have been corrupted are used infrequently, you may ...  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

• Distributed File System feature prioritizes target servers in Active Directory

  DFS target prioritization is a helpful feature that has slipped under the radar for some IT admins. Directory services expert Gary Olsen breaks down how to use (and not use) this tool to its full effectiveness.  Continue Reading

• How to retrieve lost files using Group Policy folder redirection

  Learn how to combat many file and folder disasters using the 'Redirect My Documents' option via Group Policy in the Windows domain.  Continue Reading

• How to destroy data on backup tapes

  This tip offers guidelines for destroying data on backup tapes, with information about degaussing, tape cartridge destruction, tape reuse and record keeping.  Continue Reading

• AGDLP reduces account management, permissions management headaches

  AGDLP is a practice that can greatly reduce your administrative headaches related to account management and permissions management.  Continue Reading

• Software testing deliverables: From test plans to status reports

  Core sets of deliverable are required for any software testing phase. In many cases they include a test plan, test case, defect documentation and status report. Learn what is required for each in this tip from David W. Johnson.  Continue Reading

• Daisy-chaining SCSI devices

  With SCSI, you can daisy-chain (physically wire) multiple devices together. However, if you're considering daisy-chaining multiple SCSI devices together, you should know the SCSI bus will only support a certain number of devices.  Continue Reading

• How to estimate the lifespan of LTO tapes

  This tip outlines what you need to consider when estimating the lifespan of LTO tape. It's not as black and white as LTO tape manufacturers would like you to believe.  Continue Reading

• Create and manage hardware profiles

  Hardware profiles, which are set by a systems administrator, describe which pieces of hardware are enabled or disabled when a system is booted under a given profile. They eliminate the process of Windows having to redetect hardware. This tip will ...  Continue Reading

• How to document system, software requirements

  There are various formats you can use to document system and software requirements. However, no single one is sufficient to represent all requirements. You need to follow an integrated approach.  Continue Reading

• Storage virtualization: Where and how

  This tip outlines the various locations to implement storage virtualization functionality, the different approaches to storage virtualization and offers suggestions on how to choose the right approach for your environment.  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

• The role of a software test manager

  Effective software test managers not only understand the discipline of testing, but they are also able to manage and implement a testing process in their organizations. That requires team leading skills, communication skills, and being able to ...  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

• Using Netmon to analyze network traffic in Windows Server 2003

  The Network Monitor tool can be considered both a network troubleshooting tool and a packet analysis tool. But the version of Netmon that comes with Windows Server 2003 allows only the capture of frames sent to and from your local server.  Continue Reading

• Fix USB audio problems like sputtering or glitching

  USB audio often suffers from sputtering or glitching— playback riddled with clicks and pops. The bitstream is being interrupted, and the cause is hardware-related.  Continue Reading

• Memory leaks: Determine an application's CPU consumption

  The same symptoms for a memory leak can be caused by a poorly written application that consumes an excessive amount of CPU time. Here's how to determine how much CPU time an individual application is using.  Continue Reading

• Performance Logs and Alerts: A guide to the Windows Server 2003 utility

  Performance Logs and Alerts is one of performance monitoring tools in Windows Server 2003. This tip discusses the tool's two types of logs: counter logs and trace logs.  Continue Reading

• Software requirements: Using models to understand users' needs

  Successful software projects involve users early and often to explore and reach closure on requirements. Using analysis models you can depict user needs with a combination of diagrams and structure text such as tables or templated text.  Continue Reading

• Cisco wireless access point configuration from scratch

  Learn what the Cisco 1242 wireless access point can do for you and how to configure one from scratch. This tip covers basic security settings, enabling the wireless radios, and how to make a successful connection. The 1242AG is a powerful ...  Continue Reading

• Fixing corrupt Microsoft Outlook calendar entries

  Microsoft Outlook 2003 and Outlook 2007 can occasionally suffer from corrupt calendar entries. When this happens, certain appointment reminders repeatedly pop up no matter how many times you dismiss them. Exchange MVP Brien Posey explains how to fix...  Continue Reading

• Automating server management and IT processes

  Server automation can free up data center resources to focus on higher-value activities. This tip provides some suggestions for getting started by automating low level IT processes.  Continue Reading

• I don't want a Web application security product; I want a solution

  The number of Web application security products available is enough to make your head spin. A better option is a total solution that handles all of your Web application security needs, says application security expert Anurag Agarwal.  Continue Reading

• Simple WMI tricks for AD administrators

  Windows Management Instrumentation (WMI) can be a great asset for Active Directory admins. Expert Gary Olsen offers useful WMI tips and tricks for locating and gathering information from objects in an enterprise.  Continue Reading

• IBM Tivoli Storage Manager vs. traditional backup

  Learn about the architectural concepts behind IBM's Tivoli Storage Manager backup software and the main differences with what are often referred to as "traditional" backup products. This piece is the first of a series of four on Tivoli Storage ...  Continue Reading

• Microsoft's daylight-saving time (DST) patch -- Does it matter to AD?

  Who would've thought that expanding the dates of daylight-saving time would cause so many problems for IT administrators? Expert Gary Olsen analyzes what the changes mean to Active Directory regarding domain operations.  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

• Diskpart utility scans for newly added disks

  Use the Windows Diskpart utility to scan for newly added disks, instead of Windows' Disk Administrator tool.  Continue Reading

• Block and file access unite with multiprotocol storage

  This tip looks at the pros and cons, as well as when and where to deploy multiprotocol storage, which is also referred to as "unified" storage.  Continue Reading

• Beware of bare linefeeds in Exchange Server email

  A bare linefeed is a single linefeed character that isn't preceded by an ASCII carriage return. In some instances, virus scanners or security appliances will insert bare linefeeds into an Exchange Server email and cause delivery failures.  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

• 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

• 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

• Configuring DNS server properties

  When followed correctly, DNS is fairly simple to use in Active Directory. However, it's even easier when you understand certain configurations. Expert Gary Olsen breaks down the DNS complexities that every admin should know about.  Continue Reading

• IP addressing and subnetting: Calculate a subnet mask using the subnet's formula

  IP addressing and subnetting are an important part of networks. Learn how the subnet's formula works and why it's important to know how to calculate the subnet mask "longhand."  Continue Reading

• Duplex mismatch

  What is duplex, and what is the difference between half and full duplex? What is a duplex mismatch? How can autonegotiation help or hurt your network? How can you resolve duplex conflicts? In this tip, David Davis helps networking engineers and ...  Continue Reading

• Is storage automation right for you?

  This tip covers what storage automation is, and what it is not, and what it means to you. Also, you will learn why you should, or should not implement a storage automation product.  Continue Reading

• Focus Windows port scanning with the netscan command

  How to use the netscan command to focus Windows port scanning.  Continue Reading