Nginx Troubleshooting

Author: Alex Kapranoff

Publisher: Packt Publishing Ltd

ISBN: 1785281798

Category: Computers

Page: 172

View: 6883

Investigate and solve problems with Nginx-powered websites using a deep understanding of the underlying principles About This Book Solve problems with your Nginx-powered websites before your audience notices anything Peek into the Nginx architecture and gain knowledge that will help you be valuable to you in the long run Gain knowledge of different types of problems in a step-by-step way Who This Book Is For The book is for technical specialists who already use Nginx to serve web pages for their users. Whether you are an experienced system administrator or a new professional, this book will help you do your job in the most efficient way. What You Will Learn Detect and investigate problems with your web servers Create correct and professional configuration files Get an in-depth understanding of the web server software Interpret Nginx log files easily and with actionable insights Make your websites respond as fast as possible Prevent problems by setting up proper monitoring and alerts In Detail Nginx is clearly winning the race to be the dominant software to power modern websites. It is fast and open source, maintained with passion by a brilliant team. This book will help you maintain your Nginx instances in a healthy and predictable state. It will lead you through all the types of problems you might encounter as a web administrator, with a special focus on performance and migration from older software. You will learn how to write good configuration files and will get good insights into Nginx logs. It will provide you solutions to problems such as missing or broken functionality and also show you how to tackle performance issues with the Nginx server. A special chapter is devoted to the art of prevention, that is, monitoring and alerting services you may use to detect problems before they manifest themselves on a big scale. The books ends with a reference to error and warning messages Nginx could emit to help you during incident investigations. Style and approach This comprehensive tutorial on Nginx troubleshooting takes an practical approach to guiding you through common issues in Nginx server.

Nginx HTTP Server

Harness the power of Nginx to make the most of your infrastructure and serve pages faster than ever before, 4th Edition

Author: Martin Bjerretoft Fjordvald,Clement Nedelcu

Publisher: Packt Publishing Ltd

ISBN: 1788621972

Category: Computers

Page: 348

View: 855

Make the most of your infrastructure and serve pages faster than ever with Nginx. Key Features Discover possible interactions between Nginx and Apache to get the best of both worlds Learn to exploit the features offered by Nginx for your web applications Get your hands on the most updated version of Nginx (1.13.2) to support all your web administration requirements Book Description Nginx is a lightweight HTTP server designed for high-traffic websites, with network scalability as the primary objective. With the advent of high-speed internet access, short loading times and fast transfer rates have become a necessity. This book is a detailed guide to setting up Nginx in ways that correspond to actual production situations: as a standalone server, as a reverse proxy, interacting with applications via FastCGI, and more. In addition, this complete direct reference will be indispensable at all stages of the configuration and maintenance processes. This book mainly targets the most recent version of Nginx (1.13.2) and focuses on all the new additions and improvements, such as support for HTTP/2, improved dynamic modules, security enhancements, and support for multiple SSL certificates. This book is the perfect companion for both Nginx beginners and experienced administrators. For beginners, it will take you through the complete process of setting up this lightweight HTTP server on your system and configuring its various modules so that it does exactly what you need quickly and securely. For more experienced administrators, this book provides different approaches that can help you make the most of your current infrastructure. Nginx can be employed in many situations, whether you are looking to construct an entirely new web-serving architecture or simply want to integrate an efficient tool to optimize your site loading speeds. What you will learn Download and install Nginx on your system Prepare a basic configuration and test your initial setup Discover the core functionality of the HTTP module Make the most of first- and third-party Nginx modules Set up Nginx to work with PHP, Python, and other applications Learn how to set up Nginx to work with Apache Fully replace Apache with Nginx Optimize your architecture with threads or load balancing Identify errors in configuration and learn basic troubleshooting techniques Consult the exhaustive directive and module index for reference Who this book is for This book is a perfect match to web administrators who are interested in solutions to optimize their infrastructure. Whether you are looking into replacing your existing web server software or integrating a new tool to cooperate with applications that are already up and running, this book is your ideal resource.

Nginx HTTP Server

Author: Clement Nedelcu

Publisher: Packt Publishing Ltd

ISBN: 1785285912

Category: Computers

Page: 318

View: 8686

Harness the power of Nginx to make the most of your infrastructure and serve pages faster than ever About This Book Discover possible interactions between Nginx and Apache to get the best of both worlds Learn to exploit the features offered by NGinx for your web applications Get the newest techniques available, designed with the latest version in mind Who This Book Is For By covering both the early setup stages and advanced topics, this book suits web administrators who interested in solutions to optimize their infrastructure, whether you are looking into replacing your existing web server software or integrating a new tool to cooperate with applications that are already up and running. If you, your visitors, and your operating system have been disappointed by Apache, this book is exactly what you need. What You Will Learn Get to know the basics of the Nginx configuration: syntax, structure, and semantics Understand the advanced load balancing functionality of Nginx and the newest innovative IO mechanisms Create virtual host configurations effortlessly Discover all the first-party modules: how to enable, configure, and use them Establish advanced rewrite rules with the Nginx Rewrite module Set up Nginx to work with PHP, Python, and more via FastCGI Configure Nginx to work as frontend for your existing HTTP server Manipulate configuration files with ease and adapt them to various situations Discover the common pitfalls and find out how to avoid them In Detail Nginx is a lightweight HTTP server designed for high-traffic websites, with network scalability as the primary objective. With the advent of high speed Internet access, short loading times and fast transfer rates have become a necessity. This free, open source solution will either come as a full replacement of other software such as Apache, or stand in front of your existing infrastructure to improve its overall speed. This book is a detailed guide to setting up Nginx in different ways that correspond to actual production situations: as a standalone server, as a reverse proxy, interacting with applications via FastCGI, and more. In addition, this complete directive reference will be your best friend at all stages of the configuration and maintenance processes. This book is the perfect companion for both Nginx beginners and experienced administrators. For beginners, it will take you through the complete process of setting up this lightweight HTTP server on your system and configuring its various modules so it does exactly what you need quickly and securely. For more experienced administrators, this book provides different approaches that can help you make the most of your current infrastructure. Nginx can be employed in many situations, whether you are looking to construct an entirely new web-serving architecture or simply want to integrate an efficient tool to optimize your site loading speeds. Style and approach This tutorial-style book includes detailed instructions on each of the processes it describes, as well as step-by-step tutorials, commented configuration sections, and in-depth module descriptions, so you can make the most of the performance potential offered by Nginx.

Nginx Essentials

Author: Valery Kholodkov

Publisher: Packt Publishing Ltd

ISBN: 1785280678

Category: Computers

Page: 150

View: 7772

Nginx is an open source and cross-platform reverse proxy server designed for low memory usage and high performance and concurrency. This book provides both basic and in-depth knowledge to help you effectively solve challenges with Nginx, or comfortably go through a transition period when switching to Nginx. Starting with the basics, you will learn by example how to set up, configure, and operate an Nginx installation and use features of Nginx to elegantly solve challenges you experience every day when running your website. You will learn to use the rewrite engine to solve day-to-day tasks and be able to configure access restrictions in Nginx. You will also be able to manage inbound traffic using a number of Nginx features and use Nginx for load balancing and fault-tolerance features. Finally, you will learn how to solve common performance problems and apply a number of performance-tuning strategies. Through easy exploration of the most intricate topics, this book aims to bring you to the next level in your Nginx experience.

DevOps Troubleshooting

Linux Server Best Practices

Author: Kyle Rankin

Publisher: Addison-Wesley

ISBN: 0133035506

Category: Computers

Page: 240

View: 6971

“If you’re a developer trying to figure out why your application is not responding at 3 am, you need this book! This is now my go-to book when diagnosing production issues. It has saved me hours in troubleshooting complicated operations problems.” –Trotter Cashion, cofounder, Mashion DevOps can help developers, QAs, and admins work together to solve Linux server problems far more rapidly, significantly improving IT performance, availability, and efficiency. To gain these benefits, however, team members need common troubleshooting skills and practices. In DevOps Troubleshooting: Linux Server Best Practices , award-winning Linux expert Kyle Rankin brings together all the standardized, repeatable techniques your team needs to stop finger-pointing, collaborate effectively, and quickly solve virtually any Linux server problem. Rankin walks you through using DevOps techniques to troubleshoot everything from boot failures and corrupt disks to lost email and downed websites. You’ll master indispensable skills for diagnosing high-load systems and network problems in production environments. Rankin shows how to Master DevOps’ approach to troubleshooting and proven Linux server problem-solving principles Diagnose slow servers and applications by identifying CPU, RAM, and Disk I/O bottlenecks Understand healthy boots, so you can identify failure points and fix them Solve full or corrupt disk issues that prevent disk writes Track down the sources of network problems Troubleshoot DNS, email, and other network services Isolate and diagnose Apache and Nginx Web server failures and slowdowns Solve problems with MySQL and Postgres database servers and queries Identify hardware failures–even notoriously elusive intermittent failures

Mastering NGINX

Author: Dimitri Aivaliotis

Publisher: Packt Publishing Ltd

ISBN: 1785283766

Category: Computers

Page: 320

View: 1837

An in-depth guide to configuring NGINX for your everyday server needs About This Book Get tips, tricks, and master insight to help you configure NGINX for any server situation Integrate NGINX into your applications architecture with is, using hands-on guidance and practical code samples that are free to use Troubleshoot configuration problems before and as they arise, for a seamless NGINX server experience Who This Book Is For This book is for system administrators and engineers who want to personalize NGINX, and design a robust configuration module to solve their hosting problems. Some knowledge of NGINX is a plus, but is not a prerequisite. What You Will Learn Compile the right third-party module to meet your needs Write an authentication server to use with the mail proxy module Create your own SSL certificates to encrypt connections Use try_files to solve your file-existence check problems Cache and compress responses to get speedier user interaction Integrate popular PHP frameworks with the FastCGI module Construct useful logging configurations In Detail NGINX is a high-performance HTTP server and mail proxy designed to use very few system resources. But despite its power it is often a challenge to properly configure NGINX to meet your expectations. Mastering Nginx is the solution – an insider's guide that will clarify the murky waters of NGINX's configuration. Tune NGINX for various situations, improve your NGINX experience with some of the more obscure configuration directives, and discover how to design and personalize a configuration to match your needs. To begin with, quickly brush up on installing and setting up the NGINX server on the OS and its integration with third-party modules. From here, move on to explain NGINX's mail proxy module and its authentication, and reverse proxy to solve scaling issues. Then see how to integrate NGINX with your applications to perform tasks. The latter part of the book focuses on working through techniques to solve common web issues and the know-hows using NGINX modules. Finally, we will also explore different configurations that will help you troubleshoot NGINX server and assist with performance tuning. Style and approach This is a mastering guide where you will follow an instructional, conversational approach working through problems and their solutions.

Nginx

From Beginner to Pro

Author: Rahul Soni

Publisher: Apress

ISBN: 1484216563

Category: Computers

Page: 240

View: 6688

Teaches you to start up Nginx and quickly take your expertise to a level where you can comfortably work with various aspects of the web server and make informed design decisions for your web farm. Nginx powers more than 40% of the top 1000 websites and is among the handful of web servers that can handle more than 10K simultaneous connections. It has some features which are simply unparalleled. Nginx: From Beginner to Pro teaches the Nginx server in a practical way. Frequently, it is found that web administrators struggle to fix the skill set gaps that happen due to a platform change. Migration from IIS & Apache becomes tedious at best. The book is targeted toward real-world administrators who would want to get up to speed as soon as possible and make good, informed design decisions. First you will set up Nginx and understand the architectural nuances. Then you will learn how to scale out, secure, monitor and troubleshoot the web server. Once you are fully comfortable with Nginx, you will start learning about migrating applications (or its part) from IIS or Apache web servers. Finally, you will learn to troubleshoot and maintain your Nginx professionally. Written by an author who has gone through the rough phase while moving from IIS/Apache to Nginx, this book is practical and filled with step-by-step instructions to make your time with Nginx as straightforward as possible. What You Will Learn Install and set up Nginx on CentOS, Ubuntu & Mac. Understand Nginx modules and compiling Nginx with appropriate modules. Learn about basic configuration and architecture along with hosting nuances. Load balance Nginx and use it as a highly available web platform. Monitor traffic and automate common administrative tasks. Use scripts to perform routine checks for health issues. Implement security and authentication in Nginx. Learn how and what to migrate from IIS & Apache web servers. Who This Book Is For Provides a crisp background of Nginx and then gears towards technical and practical topics. You need to know HTTP protocol, and have basic knowledge of Linux and networking concepts. The target audience is web administrators who would like to learn the finer nuances of Nginx, or map their existing skillset from IIS or Apache.

Mike Meyers CompTIA Network Guide to Managing and Troubleshooting Networks Fifth Edition (Exam N10-007)

Author: Mike Meyers

Publisher: McGraw Hill Professional

ISBN: 1260128512

Category: Computers

Page: 800

View: 1651

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Essential Skills for a Successful IT Career Written by Mike Meyers, the leading expert on CompTIA certification and training, this up-to-date, full-color text will prepare you for the CompTIA Network+ exam N10-007 and help you become an expert networking technician. Fully revised for the latest CompTIA Network+ exam, including coverage of performance-based questions, the book contains helpful on-the-job tips, end-of-chapter practice questions, and hundreds of photographs and illustrations. Mike Meyers’ CompTIA Network+ Guide to Managing and Troubleshooting Networks, Fifth Edition covers: •Network architectures•Cabling and topology•Ethernet basics•Network installation•TCP/IP applications and network protocols•Routing•Network naming•Advanced networking devices•IPv6•Remote connectivity•Wireless networking•Virtualization and cloud computing•Mobile networking•Network operations•Managing risk•Network security•Network monitoring and troubleshooting Online content includes: •100+ practice exam questions in a customizable test engine•20+ lab simulations to help you prepare for the performance-based questions•One hour of video training from Mike Meyers•Mike’s favorite shareware and freeware networking tools and utilities Each chapter features: •Learning objectives •Photographs and illustrations •Real-world examples •Try This! and Cross Check exercises •Key terms highlighted •Tech Tips, Notes, and Warnings •Exam Tips •End-of-chapter quizzes and lab projects

Kubernetes

Eine kompakte Einführung

Author: Kelsey Hightower,Brendan Burns,Joe Beda

Publisher: dpunkt.verlag

ISBN: 396088429X

Category: Computers

Page: 204

View: 6079

Es heißt, dass Google über zwei Milliarden Anwendungscontainer pro Woche deployt. Wie ist das möglich? Diese Frage hat Google mit einem Projekt namens Kubernetes beantwortet, einem Cluster-Orchestrierer, der das Bauen, Deployen und Warten skalierbarer, verteilter Systeme in der Cloud radikal vereinfacht. Dieser praktische Leitfaden zeigt Ihnen, wie Kubernetes und die Container-Technologie Ihnen helfen können, in Bezug auf Schnelligkeit, Agilität, Zuverlässigkeit und Effizienz in ganz neue Bereiche vorzudringen. Die Autoren Kelsey Hightower, Brendan Burns und Joe Beda haben bei Google und in anderen Firmen mit Kubernetes gearbeitet und erklären Ihnen, wie sich dieses System in den Lebenszyklus einer verteilten Anwendung einfügt. Sie werden lernen, wie Sie Tools und APIs einsetzen, um skalierbare, verteilte Systeme zu automatisieren – egal ob es sich um Online-Services, Systeme zum maschinellen Lernen oder ein Cluster aus Raspberry Pis handelt. Lernen Sie die Herausforderungen verteilter Systeme kennen, die Sie mit Kubernetes angehen können.Tauchen Sie ein in die containerisierte Anwendungsentwicklung und nutzen Sie dabei zum Beispiel Docker-Container.Erstellen Sie Container im Docker-Image-Format mit Kubernetes und lassen Sie sie über die Docker-Runtime ausführen.Begutachten Sie die zentralen Konzepte und API-Objekte von Kubernetes, die notwendig sind, um Anwendungen produktiv laufen zu lassen.Rollen Sie neue Softwareversionen zuverlässig ohne Downtime oder Fehler aus.Lernen Sie aus Beispielen zum Entwickeln und Deployen realer Anwendungen in Kubernetes.

Knoppix Hacks

Author: Kyle Rankin

Publisher: O'Reilly Verlag DE

ISBN: 9783897214040

Category:

Page: 369

View: 4356


Microservices

Konzeption und Design

Author: Sam Newman

Publisher: MITP-Verlags GmbH & Co. KG

ISBN: 3958450830

Category: Computers

Page: 312

View: 8333

Feingranulare Systeme mit Microservices aufbauen Design, Entwicklung, Deployment, Testen und Monitoring Sicherheitsaspekte, Authentifizierung und Autorisierung Verteilte Systeme haben sich in den letzten Jahren stark verändert: Große monolithische Architekturen werden zunehmend in viele kleine, eigenständige Microservices aufgespalten. Aber die Entwicklung solcher Systeme bringt Herausforderungen ganz eigener Art mit sich. Dieses Buch richtet sich an Softwareentwickler, die sich über die zielführenden Aspekte von Microservice-Systemen wie Design, Entwicklung, Testen, Deployment und Monitoring informieren möchten. Sam Newman veranschaulicht und konkretisiert seine ganzheitliche Betrachtung der grundlegenden Konzepte von Microservice-Architekturen anhand zahlreicher praktischer Beispiele und Ratschläge. Er geht auf die Themen ein, mit denen sich Systemarchitekten und Administratoren bei der Einrichtung, Verwaltung und Entwicklung dieser Architekturen in jedem Fall auseinandersetzen müssen. Aus dem Inhalt: Vorteile von Microservices Gestaltung von Services Ausrichtung der Systemarchitektur an der Organisationsstruktur Möglichkeiten zur Integration von Services Schrittweise Aufspaltung einer monolithischen Codebasis Deployment einzelner Microservices mittels Continuous Integration Testen und Monitoring verteilter Systeme Sicherheitsaspekte Authentifizierung und Autorisierung zwischen Benutzer und Service bzw. zwischen Services untereinander Skalierung von Microservice-Architekturen »Microservice-Architekturen besitzen viele interessante Eigenschaften, allerdings sind bei der Umstellung so einige Fallstricke zu beachten. Dieses Buch wird Ihnen helfen herauszufinden, ob Microservices für Ihre Zwecke geeignet sind und zeigt Ihnen, wie Sie die Fallstricke umgehen können.« Martin Fowler, Chief Scientist, ThoughtWorks

Systems Performance

Enterprise and the Cloud

Author: Brendan Gregg

Publisher: Prentice Hall

ISBN: 0133390101

Category: Computers

Page: 792

View: 2735

The Complete Guide to Optimizing Systems Performance Written by the winner of the 2013 LISA Award for Outstanding Achievement in System Administration Large-scale enterprise, cloud, and virtualized computing systems have introduced serious performance challenges. Now, internationally renowned performance expert Brendan Gregg has brought together proven methodologies, tools, and metrics for analyzing and tuning even the most complex environments. Systems Performance: Enterprise and the Cloud focuses on Linux® and Unix® performance, while illuminating performance issues that are relevant to all operating systems. You’ll gain deep insight into how systems work and perform, and learn methodologies for analyzing and improving system and application performance. Gregg presents examples from bare-metal systems and virtualized cloud tenants running Linux-based Ubuntu®, Fedora®, CentOS, and the illumos-based Joyent® SmartOS™ and OmniTI OmniOS®. He systematically covers modern systems performance, including the “traditional” analysis of CPUs, memory, disks, and networks, and new areas including cloud computing and dynamic tracing. This book also helps you identify and fix the “unknown unknowns” of complex performance: bottlenecks that emerge from elements and interactions you were not aware of. The text concludes with a detailed case study, showing how a real cloud customer issue was analyzed from start to finish. Coverage includes • Modern performance analysis and tuning: terminology, concepts, models, methods, and techniques • Dynamic tracing techniques and tools, including examples of DTrace, SystemTap, and perf • Kernel internals: uncovering what the OS is doing • Using system observability tools, interfaces, and frameworks • Understanding and monitoring application performance • Optimizing CPUs: processors, cores, hardware threads, caches, interconnects, and kernel scheduling • Memory optimization: virtual memory, paging, swapping, memory architectures, busses, address spaces, and allocators • File system I/O, including caching • Storage devices/controllers, disk I/O workloads, RAID, and kernel I/O • Network-related performance issues: protocols, sockets, interfaces, and physical connections • Performance implications of OS and hardware-based virtualization, and new issues encountered with cloud computing • Benchmarking: getting accurate results and avoiding common mistakes This guide is indispensable for anyone who operates enterprise or cloud environments: system, network, database, and web admins; developers; and other professionals. For students and others new to optimization, it also provides exercises reflecting Gregg’s extensive instructional experience.

Hacking mit Security Onion

Sicherheit im Netzwerk überwachen: Daten erfassen und sammeln, analysieren und Angriffe rechtzeitig erkennen

Author: Chris Sanders,Jason Smith

Publisher: Franzis Verlag

ISBN: 3645204962

Category: Computers

Page: 560

View: 1807

Sie können noch so viel in Hardware, Software und Abwehrmechanismen investieren, absolute Sicherheit für Ihre IT-Infrastruktur wird es nicht geben. Wenn Hacker sich wirklich anstrengen, werden sie auch in Ihr System gelangen. Sollte das geschehen, müssen Sie sowohl technisch als auch organisatorisch so aufgestellt sein, dass Sie die Gegenwart eines Hackers erkennen und darauf reagieren können. Sie müssen in der Lage sein, einen Zwischenfall zu deklarieren und die Angreifer aus Ihrem Netzwerk zu vertreiben, bevor sie erheblichen Schaden anrichten. Das ist Network Security Monitoring (NSM). Lernen Sie von dem leitenden Sicherheitsanalytiker Sanders die Feinheiten des Network Security Monitoring kennen. Konzepte verstehen und Network Security Monitoring mit Open-Source-Tools durchführen: Lernen Sie die drei NSM-Phasen kennen, um diese in der Praxis anzuwenden. Die praktische Umsetzung der NSM erfolgt mit vielen Open-Source-Werkzeugen wie z. B. Bro, Daemonlogger, Dumpcap, Justniffer, Honeyd, Httpry, Netsniff-NG, Sguil, SiLK, Snorby Snort, Squert, Suricata, TShark und Wireshark. Anhand von ausführlichen Beispielen lernen Sie, die Tools effizient in Ihrem Netzwerk einzusetzen.

Troubleshooting Docker

Author: Vaibhav Kohli,Rajdeep Dua,John Wooten

Publisher: Packt Publishing Ltd

ISBN: 178528536X

Category: Computers

Page: 290

View: 8251

Strategically 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.

Das DevOps-Handbuch

Teams, Tools und Infrastrukturen erfolgreich umgestalten

Author: Gene Kim,Jez Humble,Patrick Debois,John Willis

Publisher: O'Reilly

ISBN: 3960101244

Category: Computers

Page: 432

View: 7544

Mehr denn je ist das effektive Management der IT entscheidend für die Wettbewerbsfähigkeit von Organisationen. Viele Manager in softwarebasierten Unternehmen ringen damit, eine Balance zwischen Agilität, Zuverlässigkeit und Sicherheit ihrer Systeme herzustellen. Auf der anderen Seite schaffen es High-Performer wie Google, Amazon, Facebook oder Netflix, routinemäßig und zuverlässig hundertoder gar tausendmal pro Tag Code auszuliefern. Diese Unternehmen verbindet eins: Sie arbeiten nach DevOps-Prinzipien. Die Autoren dieses Handbuchs folgen den Spuren des Romans Projekt Phoenix und zeigen, wie die DevOps-Philosophie praktisch implementiert wird und Unternehmen dadurch umgestaltet werden können. Sie beschreiben konkrete Tools und Techniken, die Ihnen helfen, Software schneller und sicherer zu produzieren. Zudem stellen sie Ihnen Maßnahmen vor, die die Zusammenarbeit aller Abteilungen optimieren, die Arbeitskultur verbessern und die Profitabilität Ihres Unternehmens steigern können. Themen des Buchs sind: Die Drei Wege: Die obersten Prinzipien, von denen alle DevOps-Maßnahmen abgeleitet werden.Einen Ausgangspunkt finden: Eine Strategie für die DevOps-Transformation entwickeln, Wertketten und Veränderungsmuster kennenlernen, Teams schützen und fördern.Flow beschleunigen: Den schnellen Fluss der Arbeit von Dev hin zu Ops ermöglichen durch eine optimale Deployment-Pipeline, automatisierte Tests, Continuous Integration und Continuous Delivery.Feedback verstärken: Feedback-Schleifen verkürzen und vertiefen, Telemetriedaten erzeugen und Informationen unternehmensweit sichtbar machen.Kontinuierliches Lernen ermöglichen: Eine Just Culture aufbauen und ausreichend Zeit reservieren, um das firmenweite Lernen zu fördern.

Puppet Cookbook - Third Edition

Author: Thomas Uphill,John Arundel

Publisher: Packt Publishing Ltd

ISBN: 1784393738

Category: Computers

Page: 336

View: 862

This book is for anyone who builds and administers servers, especially in a web operations context. It requires some experience of Linux systems administration, including familiarity with the command line, file system, and text editing. No programming experience is required.

Postfix

Author: Kyle D. Dent

Publisher: O'Reilly Verlag DE

ISBN: 9783897213722

Category:

Page: 276

View: 3699

Postfix is a Mail Transfer Agent (MTA): software that mail servers use to route email. Postfix is highly respected by experts for its secure design and tremendous reliability. And new users like it because it's so simple to configure. In fact, Postfix has been adopted as the default MTA on Mac OS X. It is also compatible with sendmail, so that existing scripts and programs continue to work seamlessly after it is installed. Postfix was written by well-known security expert Wietse Venema, who reviewed this book intensively during its entire development. Author Kyle Dent covers a wide range of Postfix tasks, from virtual hosting to controls for unsolicited commercial email. While basic configuration of Postfix is easy, every site has unique needs that call for a certain amount of study. This book, with careful background explanations and generous examples, eases readers from the basic configuration to the full power of Postfix. It discusses the Postfix interfaces to various tools that round out a fully scalable and highly secure email system. These tools include POP, IMAP, LDAP, MySQL, Simple Authentication and Security Layer (SASL), and Transport Layer Security (TLS, an upgrade of SSL). A reference section for Postfix configuration parameters and an installation guide are included. Topics include: Basic installation and configuration DNS configuration for email Working with POP/IMAP servers Hosting multiple domains (virtual hosting) Mailing lists Handling unsolicited email (spam blocking) Security through SASL and TLS From compiling and installing Postfix to troubleshooting, "Postfix: The Definitive Guide offers system administrators and anyone whodeals with Postfix an all-in-one, comprehensive tutorial and reference to this MTA.