Identify, capture and resolve common issues faced by Red Hat Enterprise Linux administrators using best practices and advanced troubleshooting techniquesAbout This BookDevelop a strong understanding of the base tools available within Red Hat Enterprise Linux (RHEL) and how to utilize these tools to troubleshoot and resolve real-world issuesGain hidden tips and techniques to help you quickly detect the reason for poor network/storage performanceTroubleshoot your RHEL to isolate problems using this example-oriented guide full of real-world solutions Who This Book Is For If you have a basic knowledge of Linux from administration or consultant experience and wish to add to your Red Hat Enterprise Linux troubleshooting skills, then this book is ideal for you. The ability to navigate and use basic Linux commands is expected.What You Will LearnIdentify issues that need rapid resolution against long term root cause analysisDiscover commands for testing network connectivity such as telnet, netstat, ping, ip and curlSpot performance issues with commands such as top, ps, free, iostat, and vmstatUse tcpdump for traffic analysisRepair a degraded file system and rebuild a software raidIdentify and troubleshoot hardware issues using dmesgTroubleshoot custom applications with strace and knowledge of Linux resource limitations In Detail Red Hat Enterprise Linux is an operating system that allows you to modernize your infrastructure, boost efficiency through virtualization, and finally prepare your data center for an open, hybrid cloud IT architecture. It provides the stability to take on today's challenges and the flexibility to adapt to tomorrow's demands. In this book, you begin with simple troubleshooting best practices and get an overview of the Linux commands used for troubleshooting. The book will cover the troubleshooting methods for web applications and services such as Apache and MySQL. Then, you will learn to identify system performance bottlenecks and troubleshoot network issues; all while learning about vital troubleshooting steps such as understanding the problem statement, establishing a hypothesis, and understanding trial, error, and documentation. Next, the book will show you how to capture and analyze network traffic, use advanced system troubleshooting tools such as strace, tcpdump & dmesg, and discover common issues with system defaults. Finally, the book will take you through a detailed root cause analysis of an unexpected reboot where you will learn to recover a downed system.Style and approach This is an easy-to-follow guide packed with examples of real-world core Linux concepts. All the topics are presented in detail while you’re performing the actual troubleshooting steps.

Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. Get the job done and learn as you go. A how-To book with practical recipes accompanied with rich screenshots for easy comprehension.The How-to style is a very practical book which will take the reader through the process of garnering a basic understanding of TFS and Project Server with practical tutorials and recipes.This book is for users who want to integrate TFS 2012 and Project Server 2010. Readers are expected to know some basic Windows Server commands and account management, and have administrative access to the servers being configured.

Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks.The book is packed with quick recipes on creating and extending extension methods in your .NET applications. This book is for developers in C# and the .NET framework, with a basic understanding of language syntax and OOP concepts. Readers are expected to have some experience in finding their way around Visual Studio.

Get to grips with a new technology, understand what it is and what it can do for you, and then get to work with the most important features and tasks. If you're a keen administrator who wishes to learn more about Windows Management Instrumentation and the use of Cmdlets, then this book is the perfect Starter guide for experienced professionals. This book combines an easy-to-learn approach with practical examples using the powerful Powershell 3.0 in Windows. This book is great for system administrators who would like to learn how to remotely manage systems utilizing PowerShell 3.0. It is assumed that you already have experience with previous versions of PowerShell but the book will provide easy-to-learn, practical examples of how to use the new features included in PowerShell 3.0.

Get to grips with a new technology, understand what it is and what it can do for you, and then get to work with the most important features and tasks. This book is written in an easytoread style, with a strong emphasis on realworld, practical examples. Stepbystep explanations are provided for performing important tasks.If you are a Cloud engineer or administrator looking forward to working with vCloud, then this is the best guide to get you started with it.

Practical guide to create Concrete5 themes This book is great for theme developers new to concrete5 who are looking to use their experience in HTML and CSS to create high quality themes for concrete5. It’s assumed that you have worked with HTML before and can also read code as you’ll see some basic PHP and JavaScript code. There are a few words about using concrete5, but you’re expected to spend a bit of time on your own to get familiar with the concrete5 interface by yourself and by reading some of the articles listed in the book. Readers are expected to have the ability to set up their own concrete5 site, but basic information about the installation and links to follow up are provided though.

This book is a step-by-step tutorial full of diagrams, core concept explanations, best practice tips, and links to working book examples. This book will show you how create web-ready data visualizations using Google’s infrastructure. Some HTML knowledge is the only requirement, although some JavaScript knowledge is also helpful.

This book is for software developers who are new to Lucene and who want to explore the more advanced topics to build a search engine. Knowledge of Java is necessary to follow the code samples. You will learn core concepts, best practices, and also advanced features, in order to build an effective search application.

This book is written in a simple, easy-to-understand format with lots of screenshots and step-by-step explanations.This book is geared toward developers that have a familiarity with Delphi or Free Pascal and would like to start using the open source Lazarus Integrated Development Environment. You should have knowledge of creating a console and GUI applications as well as creating basic components. Example source code and projects are provided to help learn the differences between Delphi and Lazarus projects.

Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. Get the job done and learn as you go. This book is filled with practical, hands-on recipes to help you write SASS quickly and more efficiently.This book is great for those new to using CSS pre-processors such as SASS, and who are looking to get a good grounding in how to use SASS. It’s assumed you will have some experience in using HTML and CSS already; it is likely you will be responsible for maintaining at least one website (the larger the better), and are keen to learn how you can use SASS to help make it easier to manage your CSS styles. Although SASS is powered by Ruby, it is not essential to already be familiar with Ruby for the purposes of completing the recipes in this book.

Get to grips with a new technology, understand what it is and what it can do for you, and then get to work with the most important features and tasks.A quick and simple Starter to working with the OpenLayers JavaScript library architecture, helping you become productive with it in a very short time. Instant OpenLayers Starter is a book for web designers or GIS specialists with a basic knowledge of JavaScript, for learning how to create simple, embedded, and basic maps, or to build complex data analysis and data management RIAs.

"JIRA 5.x Development Cookbook" is part of Packt's Cookbook series. A Packt Cookbook contains step-by-step recipes for solutions to the most important problems you face when working with a topic. Inside this Cookbook you will find: A straightforward and easy-to-follow format, A selection of the most important tasks and problems, Carefully organized instructions for solving the problem efficiently, Clear explanations of what you did, Details for applying the solution to other situations. If you are a JIRA developer or project manager who wants to fully exploit the exciting capabilities of JIRA, then this is the perfect book for you.

Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. This hands-on guide provides a quick and easy way to back up and restore your database using PostgreSQL. Written for database administrators who want to create backups of their critical enterprise data and efficiently restore it using PostgreSQL.

This practical guide is intended for those who want to learn how to build extremely scalable applications. This book is easy to read and is aimed at Java enterprise developers with a solid knowledge of Java. However, no previous coding experience with Infinispan is required.

Learning Heroku Postgres is targeted at developers and database admins. Even if you're new to Heroku Postgres, you'll be able to master both the basic as well as advanced features of Heroku Postgres. Since Heroku Postgres is incredibly user-friendly, no previous experience in computer coding or programming is required.

If you are an Enterprise C# developer who wishes to extend your knowledge of NServiceBus and Enterprise Service Bus in C#, this is the book for you. This book is designed to enhance the education of ESBs and their messaging, whether you are a beginner or a seasoned expert in Enterprise C#, Apex, and Visualforce pages.

If you are a system administrator who wants to become an expert in controlling and automating your Windows environment, then this book is for you. Prior knowledge of PowerShell's core elements and applications is required for this book.

This book is ideal for Python programmers who are tasked with or wish to make a special-purpose GIS application. Analysts, political scientists, geographers, and GIS specialists seeking a creative platform to experiment with cutting-edge spatial analysis, but who are still only beginners in Python, will also find this book beneficial. Familiarity with Tkinter application development in Python is preferable but not mandatory.

This book is targeted at hobbyists, students, and game development professionals familiar with the Unity basics, looking to extend their skills and knowledge in the field of real-time game animation. You will need to be familiar with level design and basic *ing in C# and have a good knowledge of game development.

If you are a data analyst, developer, or simply someone who wants to use Hive to explore and analyze data in Hadoop, this is the book for you. Whether you are new to big data or an expert, with this book, you will be able to master both the basic and the advanced features of Hive. Since Hive is an SQL-like language, some previous experience with the SQL language and databases is useful to have a better understanding of this book.

If you are an administrator of a VMware vSphere infrastructure who wants to simplify storage delivery by integrating storage into vSphere, Virtual SAN is for you. No extensive storage background is needed as VMware Virtual SAN integrates into the existing vSphere solutions with which you are already familiar.