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Troubleshooting CentOS
by Jonathan HobsonIt is assumed that you will already have a server up and running, you have a good working knowledge of CentOS, and you are comfortable with the concept of working with those services used by your server.
Troubleshooting Citrix XenApp®
by Dragos Madarasan Suraj PatilIdentify and resolve key Citrix XenApp® issues using trusted troubleshooting and monitoring techniques About This Book • Understand the key troubleshooting methodologies when working with XenApp 7.5 version and above • Uncover effective tips and techniques to solve real-world XenApp® infrastructure problems • This is a fast-paced guide to developing key troubleshooting and problem resolution skills you can put to use in a Citrix environment Who This Book Is For This book is for Citrix Administrators or Citrix Engineers who are currently managing Citrix XenApp® in a production environment and want to learn how to troubleshoot XenApp® issues in the shortest possible time. It is assumed that you have a basic understanding of XenApp's components and how to implement and manage a XenApp® infrastructure. What You Will Learn • Get to know about troubleshooting methodologies and perform a root cause analysis of the problem • Understand the individual components and interactions required for a successful XenApp environments • Identify and troubleshoot issues around the core Citrix components • Identify XenApp® components and their roles and learn how they interact with the communication channels • Gain tips and tricks to optimize Citrix deployments • Monitor and optimize the XenApp® environment In Detail Citrix XenApp® is an application virtualization product from Citrix. It allows users to connect to their corporate applications from various computer systems and even mobile devices. XenApp® has grown into a complex software with ever-expanding infrastructures in place. Together with tight integrations with other systems such as Terminal Services, Active Directory, and other third-party authentication services, troubleshooting XenApp® has become more complicated. This book teaches you how to approach troubleshooting complex issues with XenApp® deployments and understand the problem, find a fix or workaround, determine the root cause, and apply corrective steps wherever applicable. The book progresses to give you an idea about the many supportive components that play an important role in XenApp's application delivery model and should be considered while troubleshooting XenApp® issues. It also shows you standard troubleshooting processes so that you can resolve complex XenApp® issues in a mission critical environment. By the end of this book, you will see how and where to use supportive components that help minimize XenApp® issues. Also, we'll explain various tools that can be useful when monitoring and optimizing entire application and desktop delivery model. Style and approach This is an easy-to-follow, fast-paced, example-oriented guide with a brief explanation on various troubleshooting methodologies to walk you through a host of real-life problems.
Troubleshooting Citrix XenDesktop®
by Gurpinder SinghThe ultimate troubleshooting guide for clear, concise, and real-world solutions to a wide range of common Citrix XenDesktop problems About This Book • Explore the XenDesktop architecture and work with various troubleshooting tools that every Citrix admin should know about • Discover how to troubleshoot performance, VDA registration, and NetScaler integration issues • A fast-paced troubleshooting guide to help you identify and resolve any kind of problem you might face while working with Citrix XenDesktop Who This Book Is For Troubleshooting Citrix XenDesktop is targeted at Citrix Administrators or Citrix Engineers who are working on Xendesktop and want to learn tips and techniques required to deal with the issues they face in their day-to-day life. A working knowledge of core elements and concepts of Xendesktop would be an added advantage. What You Will Learn • Solve VDA registration problems and Citrix session launch difficulties • Identify and resolve XenDesktop service issues • Troubleshoot performance issues related to the XenDesktop architecture • Work around common printing issues • Understand the Citrix XenDesktop HDX policies and deal with the HDX MediaStream challenges • Resolve the common MCS and PVS configuration issues in your XenDesktop environment • Find solutions to some general issues that have been identified and recorded by Citrix in their database that every administrator must be aware of In Detail In today's world, many organizations have decided to move to secure and stable VDI platforms to benefit their organization to meet their security needs. To meet an organization's requirements, Citrix XenDesktop serves as the best desktop virtualization solution available, providing the optimum user experience. Troubleshooting Citrix XenDesktop is a single resource guide that will help you dig deep into all the technical issues you encounter to resolve them using an autonomous and well-defined approach. The book starts by walking you through the XenDesktop architecture and the troubleshooting toolkit for Citrix XenDesktop. The subsequent chapters will help you identify possible causes of various types of Citrix XenDesktop problems that may arise while installing, configuring, or troubleshooting day-to-day problems. You will also be dealing with the most common and important VDA registration problems that you might often face while working with the XenDesktop product suite. Additionally, you will resolve issues that arise while launching Citrix sessions, troubleshoot performance issues, and learn how to integrate Citrix NetScaler with your XenDesktop environment. Style and approach This book is an easy-to-follow troubleshooting guide with real-world examples of resolving XenDesktop issues. Each chapter is focused on a specific troubleshooting area, giving you the time to learn about and apply relevant tools and practices to troubleshoot the problems using a systematic approach.
Troubleshooting Docker
by Rajdeep Dua Vaibhav Kohli John WootenStrategically design, troubleshoot, and automate Docker containers from development to deployment About This Book • Utilize current and emergent technologies for effective Docker orchestration and management • A step-by-step guide to diagnosing and fixing problems with Docker containers. Who This Book Is For This book is intended for seasoned solutions architects, developers, and programmers, system engineers, and administrators to help you troubleshoot common areas of Docker containerization. If you are looking to build production-ready Docker containers for automated deployment, you will be able to master and troubleshoot both the basic functions and the advanced features of Docker. Advanced familiarity with the Linux command line syntax, unit testing, the Docker Registry, Github, and leading container hosting platforms and Cloud Service Providers (CSP) are the prerequisites. What You Will Learn • Install Docker ecosystem tools and services, Microservices and N-tier applications • Create re-usable, portable containers with help of automation tools • Network and inter-link containers • Attach volumes securely to containers • Consume and troubleshoot Docker APIs • Troubleshooting issue of Docker deployment in Public cloud • Ease the process of container management with Kubernetes In Detail This book will traverse some common best practices to for complex application scenarios where troubleshooting can be successfully employed to provide the repeatable processes and advantages that containers can deliver. This book will be a practical guide showing how to fix real-life issues related to installation, memory, Dockerfile syntax, connection, authorization, networking and so on in Docker. This book will also teach how to solve errors that occur during advanced setup and administration and deployment in a step-by-step fashion. By sequentially working through the real-world production scenarios in each chapter throughout the book, you will gain insight into and mastery of common areas not only for effective troubleshooting, but ways and means to avoid troubleshooting in the first place. This book will also cover tips and tricks that make the workflow easier. Style and approach An easy-to-follow guide full of interactive examples of real-world development and deployment scenarios. Ample screenshots, workflows, complementary tools, and related terminal commands are provided to address a wide range of practical and situational applications.
Troubleshooting Finite-Element Modeling with Abaqus: With Application in Structural Engineering Analysis
by Raphael Jean BoulbesThis book gives Abaqus users who make use of finite-element models in academic or practitioner-based research the in-depth program knowledge that allows them to debug a structural analysis model. The book provides many methods and guidelines for different analysis types and modes, that will help readers to solve problems that can arise with Abaqus if a structural model fails to converge to a solution. The use of Abaqus affords a general checklist approach to debugging analysis models, which can also be applied to structural analysis.The author uses step-by-step methods and detailed explanations of special features in order to identify the solutions to a variety of problems with finite-element models. The book promotes: • a diagnostic mode of thinking concerning error messages; • better material definition and the writing of user material subroutines; • work with the Abaqus mesher and best practice in doing so; • the writing of user element subroutines and contact features with convergence issues; and• consideration of hardware and software issues and a Windows HPC cluster solution.The methods and information provided facilitate job diagnostics and help to obtain converged solutions for finite-element models regarding structural component assemblies in static or dynamic analysis. The troubleshooting advice ensures that these solutions are both high-quality and cost-effective according to practical experience. The book offers an in-depth guide for students learning about Abaqus, as each problem and solution are complemented by examples and straightforward explanations. It is also useful for academics and structural engineers wishing to debug Abaqus models on the basis of error and warning messages that arise during finite-element modelling processing.
Troubleshooting for Network Operators: The Road to a New Paradigm with Encrypted Traffic
by Van Van Tong Sami Souihi Hai-Anh Tran Abdelhamid MelloukNowadays, the Internet is becoming more and more complex due to an everincreasing number of network devices, various multimedia services and a prevalence of encrypted traffic. Therefore, in this context, this book presents a novel efficient multi modular troubleshooting architecture to overcome limitations related to encrypted traffic and high time complexity. This architecture contains five main modules: data collection, anomaly detection, temporary remediation, root cause analysis and definitive remediation. In data collection, there are two sub modules: parameter measurement and traffic classification. This architecture is implemented and validated in a software-defined networking (SDN) environment.
Troubleshooting for Network Operators: The Road to a New Paradigm with Encrypted Traffic
by Van Van Tong Sami Souihi Hai-Anh Tran Abdelhamid MelloukNowadays, the Internet is becoming more and more complex due to an everincreasing number of network devices, various multimedia services and a prevalence of encrypted traffic. Therefore, in this context, this book presents a novel efficient multi modular troubleshooting architecture to overcome limitations related to encrypted traffic and high time complexity. This architecture contains five main modules: data collection, anomaly detection, temporary remediation, root cause analysis and definitive remediation. In data collection, there are two sub modules: parameter measurement and traffic classification. This architecture is implemented and validated in a software-defined networking (SDN) environment.
Troubleshooting iOS: Solving iPhone and iPad Problems
by Paul McFedriesUnderstand and solve many different kinds of iPhone and iPad problems. This book covers both general troubleshooting techniques applicable in a wide variety of situations as well as specific fixes for topics such as networking, apps, photos, the battery, and syncing.Glitches, hiccups, and crashes just aren't supposed to happen with iOS, but alas, all too often they do. It is these non-obvious fixes, workarounds, and preventative measures that form the core of iOS Troubleshooting. With clear, straightforward prose, this book will take the reader through hundreds of iOS problems, explain the reasons for them, and provide easy to understand solutions to get the device (and you) back in business. What you'll learn:Fix cellular and networking connectionsIncorporate accessories effectivelySolve battery and charging issuesClear up syncing and iCloud glitches Who this book is for:Any person who uses an iOS device.
Troubleshooting Java Performance: Detecting Anti-Patterns with Open Source Tools
by Erik OstermuellerTroubleshoot the most widespread and pernicious Java performance problems using a set of open-source and freely-available tools that will make you dramatically more productive in finding the root causes of slow performance. This is a brief book that focuses on a small number of performance anti-patterns, and you’ll find that most problems you encounter fit into one of these anti-patterns. The book provides a specific method in a series of steps referred to as the “P.A.t.h. Checklist” that encompasses persistence, alien systems, threads, and heap management. These steps guide you through a troubleshooting process that is repeatable, that you can apply to any performance problem in a Java application. This technique is especially helpful in 'dark' environments with little monitoring.Performance problems are not always localized to Java, but often fall into the realms of database access and server load. This book gives attention to both of these issues through examples showing how to identify repetitive SQL, and identify architecture-wide performance problems ahead of production rollout. Learn how to apply load like an expert, and determine how much load to apply to determine whether your system scales. Included are walk-throughs of a dozen server-side performance puzzles that are ready to run on your own machine. Following these examples helps you learn to:Assess the performance health of four main problems areas in a Java system: The P.A.t.h. Checklist presents each area with its own set of plug-it-in-now toolsPinpoint the code at fault for CPU and other bottlenecks without a Java profilerFind memory leaks in just minutes using heapSpank, the author's open-source leak detector utility that is freely available from heapSpank.orgThe repeatable method provided in this book is an antidote to lackluster average response times that are multi-second throughout the industry. This book provides a long absent, easy-to-follow, performance training regimen that will benefit anyone programming in Java. What You'll LearnAvoid the 6 most common ways to mess up a load testDetermine the exact number of threads to dial into the load generator to test your system's scalabilityDetect the three most common SQL performance anti-patternsMeasure network response times of calls to back-end systems ('alien systems')Identify whether garbage collection performance is healthy or unhealthy and whether delays are caused by problems in the old or new generation, so you know which generation needs to be adjustedWho This Book Is ForIntermediate and expert Java developers and architects. Java experts will be able to update their skill set with the latest and most productive, open-source Java performance tools. Intermediate Java developers are exposed to the most common performance defects that repeatedly show up in Java applications, ones that account for the bulk of slow-performing systems. Experts and intermediates alike will benefit from the chapters on load generation.
Troubleshooting LC Systems: A Comprehensive Approach to Troubleshooting LC Equipment and Separations
by John W. Dolan Lloyd R. SnyderOver the last 15 years, high-performance liquid chromatogra phy (LC) has made the transition from an instrument used only by experts in research labs to a tool used for routine applications by relatively unskilled workers. With this transition have come in instrumentation and column technology. In major advances the past, the operator had to be a jack-of-all-trades, with a screw driver, soldering iron, and various wrenches as constant compan ions in the LC lab. Today, many instruments contain micropro cessors as powerful as those of mainframe computers of earlier days. With this technology has come a variety of self-diagnostic tools that allow the LC system to locate many of its own prob lems. Traditionally, well-honed LC troubleshooting skills have been a result of years of work at the bench. Today the LC system itself often can do a better job of troubleshooting than the operator can. Yet many of the problems of the past are still the major problems of today: air bubbles, check valves, detector lamps, and, of course, problems with the separation. An added pressure on the operator of today's LC system is that of productivity-the lab often cannot afford unnecessary downtime. This means that the operator has to be a troubleshooting expert, or has to have that expertise at his or her fingertips. The present book was written to provide this expertise in an easy-to-use format for users at all levels of experience.
Troubleshooting & Maintaining PCs All-in-One For Dummies
by Dan GookinShow your PC who’s boss Nothing’s more annoying than a tech malfunction, especially when it’s your PC—with the exception of perhaps wading through reams of random, unreliable theories online looking for a solution, or paying an expensive tech geek to show up to perform a five-minute fix. The latest edition of Troubleshooting & Maintaining Your PC All-in-One For Dummies puts all this frustration behind you and gets you straight to work solving the problem yourself! In his straightforward, friendly style, Dan Gookin—bestselling tech author and all-round Mr. Fixit—packs everything you need to know into 5-books-in-1, giving you the knowledge and process to hit on the right solution, fast. From identifying common problems to methodically narrowing down to the correct fix, you’ll save hours of frustrating research—and experience the sweet, righteous satisfaction of having achieved it all yourself. Pick up quick fixes Understand and reconnect networks Restore memory Boost your PC’s performance Every problem has a solution and PCs are no different: get this book and you’ll never catch yourself shouting at your monitor or frustrated with the motherboard again—well, maybe not quite so often.
Troubleshooting & Maintaining PCs All-in-One For Dummies
by Dan GookinShow your PC who’s boss Nothing’s more annoying than a tech malfunction, especially when it’s your PC—with the exception of perhaps wading through reams of random, unreliable theories online looking for a solution, or paying an expensive tech geek to show up to perform a five-minute fix. The latest edition of Troubleshooting & Maintaining Your PC All-in-One For Dummies puts all this frustration behind you and gets you straight to work solving the problem yourself! In his straightforward, friendly style, Dan Gookin—bestselling tech author and all-round Mr. Fixit—packs everything you need to know into 5-books-in-1, giving you the knowledge and process to hit on the right solution, fast. From identifying common problems to methodically narrowing down to the correct fix, you’ll save hours of frustrating research—and experience the sweet, righteous satisfaction of having achieved it all yourself. Pick up quick fixes Understand and reconnect networks Restore memory Boost your PC’s performance Every problem has a solution and PCs are no different: get this book and you’ll never catch yourself shouting at your monitor or frustrated with the motherboard again—well, maybe not quite so often.
Troubleshooting Microsoft Teams: Enlisting the Right Approach and Tools in Teams for Mapping and Troubleshooting Issues
by Balu N Ilag Arun M SabaleLearn and understand Microsoft Teams functionality, potential issues, and the tools available to troubleshoot Teams. This book provides a complete overview of Teams Phone system (PSTN) connectivity, call routing and quality troubleshooting, and best practices to support a Teams environment.The book begins with an introduction to Microsoft Teams and it provides a troubleshooting terminology. You will understand how to identify and develop a systematic approach for troubleshooting Teams. You will learn Teams Phone (voice) management and how to handle issues related to: Direct Routing connectivity, call routing, emergency calling, and much more. The book covers issues related to Teams client-side and external access along with Teams call quality troubleshooting. You will gain knowledge of real-world issues and use Teams troubleshooting tools such as the: Connectivity Analyzer, call diagnostic tool, SBC Syslog, Call Quality Dashboard, and quality analytics tool. You will go through the: Call Quality Dashboard with custom queries, PowerBI connector tool for the Teams Call Quality Dashboard, Teams Phone system Direct Routing Health Dashboard for call quality troubleshooting, and learn how to design PowerBI-based Teams reports.After reading this book, you will be able to quickly diagnose Teams connectivity and quality problems, and discover the root cause of any Teams issue. This book also is a practical guide you can use to prepare for the certification exam on troubleshooting Microsoft Teams (Exam MS-740).What You Will LearnUnderstand Microsoft Teams service components and their functionalityUnderstand unique approaches and techniques to identify an issue, capture the diagnostic log, and analyze the logDetect poor audio/video calls and troubleshoot underlying problemsTroubleshoot and administer Teams Phone system connectivity and call routing issuesUse the Call Quality Dashboard, and Analytics, for call quality troubleshootingUnderstand and design a custom call report based on PowerBI report templatesPrepare for the certification exam on troubleshooting Microsoft Teams (Exam MS-740)Who This Book Is ForMicrosoft Teams administrators, support engineers, helpdesk engineers, telecom admins, and network engineers
Troubleshooting NetScaler
by Raghu Varma TirumalarajuGain essential knowledge and keep your NetScaler environment in top formAbout This BookLearn how the main features - Load Balancing, Content Switching, GSLB, SSL offloading, AAA, AppFirewall, and Gateway work under the hood using vividly explained flows and tracesExplore the NetScaler layout and the various logs, tools and methods available to help you when it's time to debugAn easy-to-follow guide, which will walk you through troubleshooting common issues in your NetScaler environmentWho This Book Is ForThis book is aimed at NetScaler administrators who have a basic understanding of the product but are looking for deeper exposure and guidance in identifying and fixing issues to keep their application environment performing optimally.What You Will LearnTroubleshoot traffic management features such as load balancing, SSL, GSLB and content switchingIdentify issues with caching and compressionDeal with authentication issues when using LDAP, RADIUS, certificates, Kerberos and SAMLDiagnose NetScaler high availability and networking issuesExplore how application firewall protections work and how to avoid false positivesLearn about NetScaler Gateway integration issues with XenApp, XenDesktop, and XenMobileDeal with NetScaler system-level issuesDiscover the NetScaler troubleshooting toolsIn DetailNetScaler is a high performance Application Delivery Controller (ADC). Making the most of it requires knowledge that straddles the application and networking worlds.As an ADC owner you will also likely be the first person to be solicited when your business applications fail. You will need to be quick in identifying if the problem is with the application, the server, the network, or NetScaler itself.This book provides you with the vital troubleshooting knowledge needed to act fast when issues happen. It gives you a thorough understanding of the NetScaler layout, how it integrates with the network, and what issues to expect when working with the traffic management, authentication, NetScaler Gateway and application firewall features. We will also look at what information to seek out in the logs, how to use tracing, and explore utilities that exist on NetScaler to help you find the root cause of your issues.Style and approachThis helpful guide to troubleshooting NetScaler is delivered in a comprehensive and easy-to-follow manner. The topics in the book adopt a step-by-step approach.
Troubleshooting OpenVPN
by Eric F CristGet the solutions you need to troubleshoot any issue you may face to keep your OpenVPN up and running About This Book • This is the first book on the market that resolves your issues related to troubleshooting OpenVPN • Ensure your organization's private network is protected 24x7 by resolving OpenVPN issues instantly • Save time and costs by troubleshooting to reduce the impact on your business Who This Book Is For The book is for system administrators who are experienced and well versed with OpenVPN. You should possess intermediate to master level proficiency with OpenVPN. All OpenVPN users can leverage this book. What You Will Learn • Diagnose and remediate authentication and authorization problems in OpenVPN • Overcome simple network and startup script errors • Learn OpenVPN log file format and verbosity options • Resolve operating system-specific errors • Discover various troubleshooting techniques to resolve problems in OpenVPN • Improve performance and identify bottlenecks in the network or with hardware • Determine external versus internal network issues In Detail OpenVPN, the most widely used open source VPN package, allows you to create a secure network across systems, keeping your private data secure. Connectivity and other issues are a pain to deal with, especially if they are impacting your business. This book will help you resolve the issues faced by OpenVPN users and teach the techniques on how to troubleshoot it like a true expert. This book is a one stop solution for troubleshooting any issue related to OpenVPN. We will start by introducing you to troubleshooting techniques such as Packet Sniffing, Log Parsing, and OpenSSL. You will see how to overcome operating system specific errors. Later on, you will get to know about network and routing errors by exploring the concepts of IPv4 and IPv6 networking issues. You will discover how to overcome these issues to improve the performance of your OpenVPN deployment. By the end of the book, you will know the best practices, tips, and tricks to ensure the smooth running of your OpenVPN. Style and approach This is a practical and straight-to-the point book that troubleshoots all the issues related to OpenVPN and provides best practices, tips, and tricks.
Troubleshooting Oracle Performance
by Christian AntogniniTroubleshooting Oracle Performance, 2nd Edition is your systematic guide to diagnosing and resolving performance problems in database-backed applications involving Oracle's database engine. Christian Antognini brings a decade and a half experience to his topic. His first edition is one of the most well-respected books in its field. This second edition has been rigorously updated to cover the latest developments in Oracle Database 11g Release 2 through Oracle Database 12c. What do you do when your database application isn’t running fast enough? You troubleshoot, of course. Finding the slow part of an application is often the easy part of the battle. It’s finding a solution that’s difficult. Troubleshooting Oracle Performance, 2nd Edition helps by providing a systematic approach to addressing the underlying causes of poor database application performance. The author freely shares his experience while explaining the underlying foundations of how SQL statements are executed by the Oracle database engine. You'll be able to draw a solid foundation of theory and shared experience as you face head-on the performance challenges in your daily work. Written for developers by an application developer who has learned by doing Gives a systematic approach to solving database application performance problems Helps you plan for performance as you would for any other application requirement
Troubleshooting Oracle Performance
by Christian AntogniniWhen your database application isn’t running fast enough, troubleshooting is usually your first move. Finding the slow part of an application is often easy, but discovering a solution can prove much more difficult. Troubleshooting Oracle Performance helps by providing a systematic approach to addressing the underlying causes of poor database application performance. Written for developers by an application developer who has learned by doing, this book shows you how to plan for performance as you would for any other application requirement.
Troubleshooting PostgreSQL
by Hans-Jurgen SchonigIf you are a database administrator looking for solutions to common PostgreSQL problems, this is the book for you. The book is suitable for people with intermediate and professional expertise.
Troubleshooting Puppet
by Thomas UphillTroubleshoot your Puppet infrastructure to leverage your system's performance effectively About This Book • Covers major tools in Puppet deployment • Fix catalog compilation problems and deal with issues found in larger deployments, such as scaling and improving performance. • A fast-paced guide with real-world examples Who This Book Is For If you are a beginner to intermediate Puppet Engineer looking for guidance to help fix problems with your Puppet deployments, this book is for you. What You Will Learn • Debug your Puppet infrastructure • Use APIs to ensure services are working properly • Fix catalog compilation issues • Solve problems using Hiera tool • Detect problems in your environment using PuppetDB tool • Learn ways to format code to aid in identifying errors • Troubleshoot errors in modules and templates In Detail Puppet is a configuration management system written for system administrators to manage a large number of systems efficiently and help maintain order. Deploying Puppet becomes more complex as you increase the number of nodes in your environment. The Puppet tool is an intelligent solution that increases the automation footprint for the proactive management of server infrastructures. Puppet's simple programming language is usable on most operating systems and is portable on different deployment environments. We begin by looking at the puppet.conf server configuration file, and talk about possible problems that can occur. What does puppet really do in the background and what options does it provide for troubleshooting? This is what we will explore. Moving on, we will be troubleshooting errors made in modules and templates, finding the best solutions. We will be writing code that will helping us in identify errors. Then we will explain how several ENCs do their job and how puppet communicates with them. We will learn how PuppetDB collects data generated by Puppet. It also enables advanced Puppet features like exported resources, and can be the foundation for other applications that use Puppet's data. By the end of the book we will have learned the best debugging tips for Puppet and PuppetServer. Style and approach This is a quick-paced guide packed with real-world examples and solutions to obstacles in your Puppet infrastructure.
Troubleshooting SharePoint: The Complete Guide to Tools, Best Practices, PowerShell One-Liners, and Scripts
by Stacy SimpkinsUtilize a treasure trove of free SharePoint troubleshooting tools and receive insightful guidance about the types of SharePoint issues that can be discovered through their use. Chapters in this book contrast solid and least privileged builds in order to help you understand the types of issues that are raised when farms are not built the least privileged way.Because SharePoint errors often present themselves one way, when an issue is actually something entirely different, the process of finding the root cause can feel like going down a rabbit hole. Hands-on exercises get you comfortable with logs so you can efficiently and effectively “explore the rabbit hole.”Troubleshooting SharePoint also demonstrates how to identify components and settings that enter an environment where access has been restricted. The author shares his proven methods for researching an issue based on what appears in the logs, with the understanding that often it is not as simple as asking a question, but how you ask it that leads to the right answer. What You’ll Learn Utilize networking tools such as NetMon, WireShark, and Fiddler for troubleshootingMaster SharePoint PAL, Webalizer, Indihaing, Developer Dashboard, the Feature Admin tool, and moreBecome proficient using Timer Jobs and Search DiagnosticsUnderstand how various files are accessed by IIS sites and within the server file systemDiscover how IIS mappings and file permissions affect issuesTroubleshoot with ULS Viewer, PowerShell, and tools such as ProcMon, PerfMon, and Event ViewerMeet your new best friend, the ULS ViewerUse Event Viewer as a troubleshooting sourceBecome conversant in the “language” of SharePoint from the log’s perspective Who This Book Is For SharePoint administrators and developers who want to learn how to quickly diagnose and resolve issues in any SharePoint server in SharePoint farms where admin access is possible
Troubleshooting Ubuntu Server
by Skanda BhargavMake life at the office easier for server administrators by helping them build resilient Ubuntu server systems About This Book • Tackle the issues you come across in keeping your Ubuntu server up and running • Build server machines and troubleshoot cloud computing related issues using Open Stack • Discover tips and best practices to be followed for minimum maintenance of Ubuntu Server 3 Who This Book Is For This book is for a vast audience of Linux system administrators who primarily work on Debian-based systems and spend long hours trying fix issues with the enterprise server. Ubuntu is already one of the most popular OSes and this book targets the most common issues that most administrators have to deal with. With the right tools and definite solutions, you will be able to keep your Ubuntu servers in the pink of health. What You Will Learn • Deploy packages and their dependencies with repositories • Set up your own DNS and network for Ubuntu Server • Authenticate and validate users and their access to various systems and services • Maintain, monitor, and optimize your server resources and avoid tremendous load • Get to know about processes, assigning and changing priorities, and running processes in background • Optimize your shell with tools and provide users with an improved shell experience • Set up separate environments for various services and run them safely in isolation • Understand, build, and deploy OpenStack on your Ubuntu Server In Detail Ubuntu is becoming one of the favorite Linux flavors for many enterprises and is being adopted to a large extent. It supports a wide variety of common network systems and the use of standard Internet services including file serving, e-mail, Web, DNS, and database management. A large scale use and implementation of Ubuntu on servers has given rise to a vast army of Linux administrators who battle it out day in and day out to make sure the systems are in the right frame of operation and pre-empt any untoward incidents that may result in catastrophes for the businesses using it. Despite all these efforts, glitches and bugs occur that affect Ubuntu server's network, memory, application, and hardware and also generate cloud computing related issues using OpenStack. This book will help you end to end. Right from setting up your new Ubuntu Server to learning the best practices to host OpenStack without any hassles. You will be able to control the priority of jobs, restrict or allow access users to certain services, deploy packages, tackle issues related to server effectively, and reduce downtime. Also, you will learn to set up OpenStack, and manage and monitor its services while tuning the machine with best practices. You will also get to know about Virtualization to make services serve users better. Chapter by chapter, you will learn to add new features and functionalities and make your Ubuntu server a full-fledged, production-ready system. Style and approach This book contains topic-by-topic discussion in an easy-to-understand language with loads of examples to help you take care of Ubuntu Server. Plenty of screenshots will guide you through a step-by-step approach.
Troubleshooting vSphere Storage
by Mike PrestonThis is a step-by-step example-oriented tutorial aimed at showing the reader how to troubleshoot a variety of vSphere storage problems, and providing the reader with solutions that can be completed with minimal effort and time in order to limit damage to work.If you are a vSphere administrator, this is the book for you. This book will provide you with 'need to know' information about the various storage transports that ESXi utilizes, the tools and techniques we can use to identify problems, and the fundamental knowledge and steps to take to troubleshoot storage-related issues. Prior knowledge of the VMWare environment is assumed.
Troubleshooting Windows 2000 TCP/IP
by SyngressTCP/IP is a set of proposals developed to allow cooperating computers to share resources across a network. Some of the largest networks today are built on the TPC/IP protocol suite. Understanding how TCP/IP is "supposed" to work is not enough for today's network managers. In this book, readers will learn to prevent, detect, troubleshoot and correct TCP/IP network problems. By using products such as distributed sniffers, field metering tools and protocol analyses, network managers can learn a lot about what is going on in (or wrong in) an internetwork and be able to troubleshoot a live TPC/IP network. This book focuses specifically on identifying problem areas, including identifying and correcting protocol errors, DNS route problems, application faults and slow response times.Syngress have sold over 700,000 Microsoft and Cisco certification guides in the last two years. Most of the administrators buying these will be interested in this book.* TPC/IP is a very popular topic; readers will welcome a guide to troubleshooting and repairing problems* Tackles monitoring the network using protocol analyses* Teaches effective methods of baselining and trend analysis
Troubleshooting Windows Server with PowerShell
by Derek Schauland Donald JacobsThis book shows you how to use PowerShell to quickly pinpoint, diagnose, and solve problems with your Windows Server environment, reducing the need for external tools, and ensuring you stay up-to-date with PowerShell as it quickly becomes one of the most useful tools in an administrator’s toolkit.Authors Derek Schauland and Donald Jacobs take you through a range of examples, showing you how to gather information from different computer sources. Whether you are logged into the server locally or just wanting to check the status of a server from your local computer, the right PowerShell cmdlets can give you a lot of information quickly, and allow you to troubleshoot your servers from the command line with little interaction with the server's desktop.In this book, you'll learn how PowerShell can help you: Understand PowerShell versus the GUIGather information from Windows event logsGather information from your server, including memory, hardware configurations, and disk space availableFind out what applications are installed on a serverFind out which Windows updates have been installed on your computerCheck the processes running on your computer and gather information about them, or start and stop them from the command lineQuickly check if services are running, and stop or start them as neededWho This Book Is ForWindows Administrators, IT Professionals and support personnel needing ways to quickly find and troubleshoot issues in their environment using the included tools. Those entering IT or wishing to develop their PowerShell skills will also benefit from this book.
Troubleshooting Xcode
by Magno UrbanoTroubleshooting Xcode is a handbook for software developers of all levels creating applications for iOS and OS X using both Objective-C and Swift. If you’ve struggled in the past to make Xcode work as expected, to solve problems that defy logic, and to understand Xcode’s misleading or cryptic error messages and unexpected crashes, Troubleshooting Xcode is for you. Troubleshooting Xcode is great for the developer wanting to extend his or her knowledge about obscure problems and limitations involving the use of Xcode, Objective-C, and Swift as well as how to use automation to increase productivity and make some repetitive tasks easier.