Learning Go with Networking

Golang has emerged as a powerful language for networking, known for its efficiency and concurrency, making it ideal for building resilient and scalable network applications. This book is designed to equip networking professionals with the Golang skills needed to navigate this dynamic landscape, providing a practical guide from fundamental concepts to advanced network programming.

This book systematically guides you through Golang's core features, including concurrency, generics, and error handling, before diving into essential networking principles like IP, TCP, and UDP. You will learn to develop applications, design synchronous and asynchronous APIs (with a focus on Ponzu and Keycloak), and effectively handle data using formats like JSON and XML, along with stream processing with AMQP, Kafka, and MQTT. The book explores Golang network packages for protocols such as ARP, FTP, DNS, and raw sockets. It also emphasizes performance optimization, covering I/O, caching, and database techniques, and automation strategies, including device, network, and cloud deployment, along with Cisco DevNet. Security is thoroughly addressed, covering authentication, cryptography (SSL/TLS, asymmetric/symmetric), certificate handling, and OWASP Top 10 vulnerabilities, and the book concludes with an exploration of network penetration testing techniques.

By the end of this book, readers will gain a solid foundation in Golang and its application to networking, enabling them to build efficient, secure, and automated network solutions and understand the security landscape, from defensive best practices to offensive techniques.

WHAT YOU WILL LEARN

* Build scalable backend services using Go and its libraries.
* Understand TCP/UDP networking through real Go-based examples.
* Develop secure APIs with authentication and token handling.
* Automate infrastructure tasks using Golang and DevNet.
* Identify and fix OWASP Top 10 vulnerabilities in Go.
* Perform ethical hacking in a controlled lab environment.
* Optimize Go applications using profiling and performance tools.
* Handle data formats like JSON, XML, and Base64 effectively.

WHO THIS BOOK IS FOR

This book is for software developers, DevOps engineers, backend architects, and cybersecurity professionals who want to build scalable, secure, and efficient systems using Golang. It is ideal for anyone working in infrastructure, automation, or cloud-native development looking to sharpen their development skills in Golang with respect to network programming.

1. Introduction to Go Language
2. Networking Essentials
3. Application Essentials
4. Data Essentials
5. Network Packages Unleased
6. Introduction to Performance Essentials
7. Automation Essentials
8. Authentication, Authorization, and Cryptography
9. OWASP with Golang
10. Hacking the Network
APPENDIX: Technical Essentials

Yogananth T. V., was born in the temple city of South India, Madurai, and brought up in Chennai for schooling and college. He has secured M.S. in software engineering from BITS PILANI - 2004 & PC-SCM from IIT Roorkee - 2023. At the time of writing this book, he works in Gorilla Technology as solutions director and is pursuing a Ph.D at Shiv Nadar University with blockchain as core domain. Previously, he worked with the Reliance Jio Platform (supply chain), and HCL Technologies for Cisco Systems Inc.

He has overall 24+ years of IT experience in various domains, with core competence in Cisco networking, unified communication, and DataCenter. Developing products and services for I18N, GST, Azure/IoT, and test automation frameworks, he has shown extensive experience in Java, Python, and Golang. His career started as a fresher at HCL Technologies-Cisco Systems in 2000, when everyone was fascinated by the Y2K problem. During the early stages in his career, he was involved in the development of SIP protocol stack in C/C++. He was certified as CCIE-VOICE, CCNP-R&S, ONAP-Network Automation, CCDH (Hadoop), VCP- 4.0.

Apart from domain certifications, he has also earned JLPT N4, Japanese Language Proficiency. He is highly adaptive, a multitasking, systematic personality, and known for his problem-solving skills, mentoring abilities, and a pronounced teacher on various technologies like networking, virtualization, OpenStack, and Kubernetes. He also performed the role of guest faculty at BITS Pilani, conducting a course titled, Design and Operations of Datacenter.

Balachandar A. (born on 11 November 1991), holds a master’s degree MCA - Computer from RVS College of Engineering and Tech – Dindigul, Tamil Nadu, India. He is a Senior software engineer with hands-on experience in Golang, Python, REST API’s, CLI based applications, scripting, microservices, SAAS applications, AWS, CI/CD automation, Docker Containerization, Linux, application solution designing, large scale applications development, all levels of testing, including performance, functional, integration, system, regression and user acceptance testing and cloud. He is a supportive and enthusiastic team player dedicated to streamlining, processing, and efficiently resolving project issues. His contributions to this field have been rewarded by Telstra, where he has successfully led and delivered multiple projects in enterprise applications and infrastructure cloud-based solutions. He is also a passionate traveler.