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The system design interview is considered to be the most complex and most difficult technical job interview by many. This book provides a step-by-step framework on how to tackle a system design question. It provides many examples to illustrate the systematic approach with detailed steps that you can follow. What’s inside? - An insider’s take on what interviewers really look for and why. - A 4-step framework for solving any system design interview question. - 15 real system design interview questions with detailed solutions. - 188 diagrams to visually explain how different systems work. Table Of Contents Chapter 1: Scale From Zero To Millions Of Users Chapter 2: Back-of-the-envelope Estimation Chapter 3: A Framework For System Design Interviews Chapter 4: Design A Rate Limiter Chapter 5: Design Consistent Hashing Chapter 6: Design A Key-value Store Chapter 7: Design A Unique Id Generator In Distributed Systems Chapter 8: Design A Url Shortener Chapter 9: Design A Web Crawler Chapter 10: Design A Notification System Chapter 11: Design A News Feed System Chapter 12: Design A Chat System Chapter 13: Design A Search Autocomplete System Chapter 14: Design Youtube Chapter 15: Design Google Drive Chapter 16: The Learning Continues

Protect your cloud, virtual, and on-premises environments by implementing Veeam's powerful backup and replication technology Key Features Gain in-depth knowledge of CDP and hardened repositories that you can use in your virtual environmentExplore Veeam's monitoring and reporting utility - Veeam ONE - along with Linux proxy enhancementsWork with the new Veeam Disaster Recovery Orchestrator (Orchestrator) for testing failovers and backups Book Description Veeam is one of the leading modern data protection solutions, making it a necessary skill for anyone responsible for securing virtual environments. This revised second edition of Mastering Veeam Backup & Replication is updated to cover Veeam version 11. The book guides you through implementing modern data protection solutions for your cloud and virtual infrastructure with Veeam, all while helping you master advanced concepts such as Continuous Data Protection (CDP), extended object storage support, Veeam ONE enhancements, and Orchestrator. Starting with Veeam essentials, including installation, best practices, and optimizations for Veeam Backup & Replication, you'll get to grips with the 3-2-1-1-0 rule to safeguard data. You'll understand how to set up a backup server, proxies, repositories, and more and then advance to cover a powerful feature of Veeam 11 – CDP. As you progress, you'll learn about immutability (also known as hardened repositories) and discover the best practices for creating them. Finally, you'll explore the new proxy option available in Linux and become well-versed with advanced topics such as extended object storage support, Veeam ONE enhancements, and Orchestrator. By the end of this Veeam book, you'll be able to implement Veeam Backup & Replication for securing your environment and enabling disaster recovery. What you will learn Discover the advanced concepts of Veeam Backup & Replication 11Master application optimization based on Veeam best practicesGet to grips with configuring CDP and working with repositories and proxiesExplore ways to protect your backups with immutable hardened repositoriesUnderstand the enhancements to backups, instant recovery, and Linux proxiesExplore Veeam ONE enhancementsBecome well-versed in using Veeam Disaster Recovery Orchestrator Who this book is for This Veeam backup book is for IT professionals who have intermediate to advanced-level knowledge of virtualization as well as backups and backup applications. Anyone who needs a reference guide for learning the advanced features of Veeam Backup & Replication and how they are used, including best practices and optimizations, will also find this book useful.

In this "intriguing, insightful and extremely educational" novel, the world's most famous hacker teaches you easy cloaking and counter-measures for citizens and consumers in the age of Big Brother and Big Data (Frank W. Abagnale). Kevin Mitnick was the most elusive computer break-in artist in history. He accessed computers and networks at the world's biggest companies -- and no matter how fast the authorities were, Mitnick was faster, sprinting through phone switches, computer systems, and cellular networks. As the FBI's net finally began to tighten, Mitnick went on the run, engaging in an increasingly sophisticated game of hide-and-seek that escalated through false identities, a host of cities, and plenty of close shaves, to an ultimate showdown with the Feds, who would stop at nothing to bring him down. Ghost in the Wires is a thrilling true story of intrigue, suspense, and unbelievable escapes -- and a portrait of a visionary who forced the authorities to rethink the way they pursued him, and forced companies to rethink the way they protect their most sensitive information. "Mitnick manages to make breaking computer code sound as action-packed as robbing a bank." -- NPR

This is a completely updated and expanded version. What is the cloud? Discover the secrets of the cloud through simple explanations that use lots of pictures and lots of examples. Why learn about the cloud? It’s the future. The cloud is the future of software, the future of computing, and the future of business. If you’re not up on the cloud, the future will move on without you. Don’t miss out. Not a techie? Don’t worry. I wrote this book for you! After reading Explain Cloud Like I'm 10, you will understand the cloud. You will understand how the cloud works. You will understand all the major technologies that make up the cloud. When you hear someone say some new cool thing is in the cloud, you’ll understand exactly what they mean. You will feel the cloud deep in your bones. That’s a promise. How do I deliver on that promise? I’ll tell you a little secret: the cloud is not that hard to understand. It’s just that nobody has taken the time to explain it properly. I take the time. I go slow. You’ll learn step-by-step, one idea at a time. You’ll learn by seeing and understanding. You’ll learn something new, whether you’re a beginner, someone who knows a little and wants to know more or thinking about a career change. In Explain Cloud Like I'm 10 , you’ll discover:    An intuitive picture-based definition of the cloud.    The deepest secrets behind how the cloud works and what cloud providers do.    How the cloud got its name. A more interesting story than you might think.    What it means when someone says a service is in the cloud.    Significant new advances in the cloud like the cloud model, cloud-native    development, DevOps, FinOps, and more.    Should you move to the cloud at all?    How to make your move to the cloud.    How to select between AWS, Azure, GCP, Kubernetes, private cloud, on-prem, colos, bare-metal, edge computing, hybrid-cloud, and multi-cloud.    The difference between IaaS, CaaS, PaaS, FaaS, and SaaS and when you'll want to use them.    How to learn more about the cloud after you finish the book.    How to get a job in the cloud.    All about cloud economics and how to significantly lower your cloud bill.    If stormy weather affects cloud computing.    How the internet really works. Most people don’t know. You will.    The good, the bad, and the ugly of cloud computing. It's not all wine and roses.    How cloud computing changed how software is made—forever.    Why AWS became so popular. Hint: it’s not the technology.    What happens when you press play on Netflix.    Why Kindle is the perfect example of a cloud service.    The radically different approaches Apple and Google take to the cloud.    How Google Maps and Facebook Messenger excel as cloud applications.    How Walmart built the most enormous hybrid cloud in the world.    Why Coca-Cola loves serverless computing.    Cloud providers are engaging in a winner-take-all war to addict you to their ecosystems.    Key ideas like VMs, serverless, containers, multi-tenancy, workloads, virtualization, caching, OpEx, CapEx, networking, public key cryptography, EC2, S3, CDNs, elastic computing, auto-scaling, datacenters, cloud storage, latency, bandwidth, CPUs, GPUs, TPUs, OSs, Infrastructure as Code, automation, pipelines, CI/CD, APIs, functions, and programming.    And so much more. Sound like gobbledygook? Don’t worry! It will all make sense. There's so much to learn! I’ve been a programmer and a writer for over 30 years. I’ve been in cloud computing since the beginning, and I’m here to help you on your journey to understand the cloud. Consider me your guide. I’ll be with you every step of the way. Sound fun? Buy Explain Cloud Like I'm 10, and let’s start learning about the cloud today!

Administer Ubuntu Server in the Enterprise Realize a dynamic, stable, and secure Ubuntu Server environment with expert guidance, tips, and techniques from a Linux professional. Ubuntu Server Administration covers every facet of system management--from users and file systems to performance tuning and troubleshooting. Learn how to automate installation using Kickstart, set up print and Web servers, configure and secure networks and TCP/IP ports, and implement Linux virtualization. You'll also get details on sharing resources via NFS and Samba, protecting your system, and customizing the Linux kernel. Install Ubuntu Server Edition in a production environment Use administrative commands, secure with the PolicyKit, and customize permissions with ACLs Configure filesystems in partitions, logical volumes, and RAID arrays. Configure secure remote administration using the Secure Shell and Landscape Manage updates and configure local repository mirrors Control users with quotas, PAMs, and authentication databases Build Web servers using Apache, MySQL, and PHP Handle security with AppArmor, Kerberos, iptables-based firewalls, and TCP Wrappers Virtualize your system using VMware, Virtualbox, and KVM Covers Ubuntu 8.04 (LTS)

Without established design patterns to guide them, developers have had to build distributed systems from scratch, and most of these systems are very unique indeed. Today, the increasing use of containers has paved the way for core distributed system patterns and reusable containerized components. This practical guide presents a collection of repeatable, generic patterns to help make the development of reliable distributed systems far more approachable and efficient. Author Brendan Burns—Director of Engineering at Microsoft Azure—demonstrates how you can adapt existing software design patterns for designing and building reliable distributed applications. Systems engineers and application developers will learn how these long-established patterns provide a common language and framework for dramatically increasing the quality of your system. Understand how patterns and reusable components enable the rapid development of reliable distributed systemsUse the side-car, adapter, and ambassador patterns to split your application into a group of containers on a single machineExplore loosely coupled multi-node distributed patterns for replication, scaling, and communication between the componentsLearn distributed system patterns for large-scale batch data processing covering work-queues, event-based processing, and coordinated workflows

Smarter, faster prep for the SSCP exam The (ISC)² SSCP Official Practice Tests, 2nd Edition is the only (ISC)²-endorsed set of practice questions for the Systems Security Certified Practitioner (SSCP). This book's first seven chapters cover each of the seven domains on the SSCP exam with sixty or more questions per domain, so you can focus your study efforts exactly where you need more review. When you feel well prepared, use the two complete practice exams from Sybex's online interactive learning environment as time trials to assess your readiness to take the exam.: Coverage of all exam objectives, including: Security Operations and Administration Access Controls Risk Identification, Monitoring and Analysis Incident Response and Recovery Cryptography Network and Communications Security Systems and Application Security SSCP certification demonstrates you have the advanced technical skills and knowledge to implement, monitor and administer IT infrastructure using security best practices, policies and procedures. It's ideal for students pursuing cybersecurity degrees as well as those in the field looking to take their careers to the next level.

Bug Bounty Bootcamp teaches you how to hack web applications. You will learn how to perform reconnaissance on a target, how to identify vulnerabilities, and how to exploit them. You’ll also learn how to navigate bug bounty programs set up by companies to reward security professionals for finding bugs in their web applications. Bug bounty programs are company-sponsored programs that invite researchers to search for vulnerabilities on their applications and reward them for their findings. This book is designed to help beginners with little to no security experience learn web hacking, find bugs, and stay competitive in this booming and lucrative industry.    You’ll start by learning how to choose a program, write quality bug reports, and maintain professional relationships in the industry. Then you’ll learn how to set up a web hacking lab and use a proxy to capture traffic. In Part 3 of the book, you’ll explore the mechanisms of common web vulnerabilities, like XSS, SQL injection, and template injection, and receive detailed advice on how to find them and bypass common protections. You’ll also learn how to chain multiple bugs to maximize the impact of your vulnerabilities.   Finally, the book touches on advanced techniques rarely covered in introductory hacking books but that are crucial to understand to hack web applications. You’ll learn how to hack mobile apps, review an application’s source code for security issues, find vulnerabilities in APIs, and automate your hacking process. By the end of the book, you’ll have learned the tools and techniques necessary to be a competent web hacker and find bugs on a bug bounty program.

Stop waiting for the network team! If basic TCP/IP was hard, network administrators couldn’t do it. Servers give sysadmins a incredible visibility into the network—once they know how to unlock it. Most sysadmins don’t need to understand window scaling, or the differences between IPv4 and IPv6 echo requests, or other intricacies of the TCP/IP protocols. You need only enough to deploy your own applications and get easy support from the network team. This book teaches you: How modern networks really work The essentials of TCP/IP The next-generation protocol, IPv6 The right tools to diagnose network problems, and how to use them Troubleshooting everything from the physical wire to DNS How to see the traffic you send and receive Connectivity testing How to communicate with your network team to quickly resolve problems A systems administrator doesn’t need to know the innards of TCP/IP, but knowing enough to diagnose your own network issues transforms a good sysadmin into a great one.

We're at an inflection point in data, where our data management solutions no longer match the complexity of organizations, the proliferation of data sources, and the scope of our aspirations to get value from data with AI and analytics. In this practical book, author Zhamak Dehghani introduces data mesh, a decentralized sociotechnical paradigm drawn from modern distributed architecture that provides a new approach to sourcing, sharing, accessing, and managing analytical data at scale. Dehghani guides practitioners, architects, technical leaders, and decision makers on their journey from traditional big data architecture to a distributed and multidimensional approach to analytical data management. Data mesh treats data as a product, considers domains as a primary concern, applies platform thinking to create self-serve data infrastructure, and introduces a federated computational model of data governance. Get a complete introduction to data mesh principles and its constituentsDesign a data mesh architectureGuide a data mesh strategy and executionNavigate organizational design to a decentralized data ownership modelMove beyond traditional data warehouses and lakes to a distributed data mesh

From Charles M. Kozierok, the creator of the highly regarded www.pcguide.com , comes The TCP/IP Guide . This completely up-to-date, encyclopedic reference on the TCP/IP protocol suite will appeal to newcomers and the seasoned professional alike. Kozierok details the core protocols that make TCP/IP internetworks function and the most important classic TCP/IP applications, integrating IPv6 coverage throughout. Over 350 illustrations and hundreds of tables help to explain the finer points of this complex topic. The book’s personal, user-friendly writing style lets readers of all levels understand the dozens of protocols and technologies that run the Internet, with full coverage of PPP, ARP, IP, IPv6, IP NAT, IPSec, Mobile IP, ICMP, RIP, BGP, TCP, UDP, DNS, DHCP, SNMP, FTP, SMTP, NNTP, HTTP, Telnet, and much more. The TCP/IP Guide is a must-have addition to the libraries of internetworking students, educators, networking professionals, and those working toward certification.

The complete start-to-finish guide for planning and delivering successful cybersecurity tabletop exercises. Cybersecurity Tabletop Exercises , written by veteran security consultants Robert Lelewski and John Hollenberger, is an essential resource for cybersecurity professionals and anyone tasked with enhancing their organization’s incident response capabilities. This comprehensive guide to tabletop exercise planning and delivery offers practical insights, step-by-step instructions, and real-world examples to improve your team’s ability to prevent and respond to cyberattacks. The book is divided into two main parts. In Part I: The Tabletop Exercise Process, you’ll learn: Why you should perform tabletop exercises and what their organizational benefits are Effective planning and logistics tips, including how to gain executive sponsor supportHow to develop realistic scenarios, injects, and storyboardsFacilitation techniques to ensure active participant engagementEvaluation methods and follow-up activities The example scenarios in Part II include: Technical tabletops covering phishing campaigns, ransomware attacks, and zero-day vulnerabilitiesExecutive-level exercises that focus on high-impact incidentsCross-functional cases such as physical security breaches, social media compromises, and insider threats With examples tailored for various roles, you’ll discover how to transform tabletop exercises from a mere compliance requirement into a powerful strategic preparedness tool. Whether you’re new to tabletop exercises or an experienced practitioner, this book provides proven insights to strengthen your organization’s cyber incident response capabilities and overall security posture.