Understand the basics of the Consul server and client architecture, and learn how to apply Consul for dynamic and secure service discovery, communication, and network connectivity automation Key Features • Discover how Consul servers and clients operate to facilitate primary Consul use cases • Learn how Consul dynamically and securely discovers and shares service data throughout the network • Utilize Consul to extend and secure network communications across multiple operating environments ...

“As an author, editor, and publisher, I never paid much attention to the competition—except in a few cases. This is one of those cases. The UNIX System Administration Handbook is one of the few books we ever measured ourselves against.”—Tim O’Reilly, founder of O’Reilly Media“This edition is for those whose systems live in the cloud or in virtualized data centers; those whose administrative work largely takes the form of automation and con...

The seminal text on SSH, newly revised and updated!Secure Shell (SSH) lets sysadmins securely manage remote systems. It’s powerful, complicated, and confusing.Lose the confusion.SSH Mastery: OpenSSH, PuTTY, Tunnels and Keys rescues you from sifting through decades of obsolete online tutorials and quickly makes you an SSH journeyman. You’ll learn toeliminate passwordsmanage access by users, groups, addresses,...

This updated edition of Michael W. Lucas' definitive volume on FreeBSD-based systems adds coverage of modern disks, the ZFS filesystem IPv6, redesigned jail and packaging systems, and virtualization, among dozens of new features added in the last 10 years.FreeBSD is the muscle behind companies like Netflix and EMC. Any place where someone does heavy lifting on the Internet, you'll find FreeBSD. This newly revised edition of Absolute FreeBSD brings FreeBSD'...

Learn how to program in Python while making and breaking ciphers—algorithms used to create and send secret messages!After a crash course in Python programming basics, you’ll learn to make, test, and hack programs that encrypt text with classical ciphers like the transposition cipher and Vigenère cipher. You’ll begin with simple programs for the reverse and Caesar ciphers and then work your way up to public key cryptography, the type of encryption used to secure today’s online trans...

Terraform has become a key player in the DevOps world for defining, launching, and managing infrastructure as code (IaC) across a variety of cloud and virtualization platforms, including AWS, Google Cloud, Azure, and more. This hands-on third edition, expanded and thoroughly updated for version 1.0 and beyond, shows you the fastest way to get up and running with Terraform.Gruntwork cofounder Yevgeniy (Jim) Brikman takes you through code examples that demonstrate Terraform's simple,...

“This is Effective C++ volume three – it’s really that good.”– Herb Sutter, independent consultant and secretary of the ISO/ANSI C++ standards committee“There are very few books which all C++ programmers must have. Add Effective STL to that list.”– Thomas Becker, Senior Software Engineer, Zephyr Associates, Inc., and columnist, C/C++ Users JournalC++’s Standard Template L...

DevOps for the Desperate is a hands-on, no-nonsense guide for those who land in a DevOps environment and need to get up and running quickly.This book introduces fundamental concepts software developers need to know to flourish in a modern DevOps environment including infrastructure as code, configuration management, security, containerization and orchestration, monitoring and alerting, and troubleshooting. Readers will follow along with hands-on examples t...

215 SAS Programming Guidelines Interview Questions78 HR Interview QuestionsReal life scenario-based questionsStrategies to respond to interview questions2 Aptitude TestsSAS Programming Guidelines Interview Questions You'll Most Likely Be Asked is a perfect companion to stand ahead above the rest in today’s competitive job market....

Whether you’re deploying applications on premise or in the cloud, this cookbook provides developers, operators, and IT professionals with more than 130 proven recipes for working with Docker.With these practical solutions, experienced developers with no previous knowledge of Docker will be able to package and deploy distributed applications within a couple of chapters. IT professionals will be able to solve everyday problems, as well as create, run, share, and deploy Docker images....

Microservices architectures offer faster change speeds, better scalability, and cleaner, evolvable system designs. But implementing your first microservices architecture is difficult. How do you make myriad choices, educate your team on all the technical details, and navigate the organization to a successful execution to maximize your chance of success? With this book, authors Ronnie Mitra and Irakli Nadareishvili provide step-by-step guidance for building an effective microservices archit...

Transport Layer Security, or TLS, makes ecommerce and online banking possible. It protects your passwords and your privacy. Let’s Encrypt transformed TLS from an expensive tool to a free one. TLS understanding and debugging is an essential sysadmin skill you must have.TLS Mastery takes you through:How TLS worksWhat TLS provides, and what it doesn’tWrapping unencrypted connections inside TLSAssessing TLS configurationsTh...