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"Zerosack Networks blogs are about sharing technical knowledge with the world to get awareness and basic facts about modern technology, programming, cloud computing, machine learning, artificial intelligence, technology history, business, laws and policies, and more."

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Understanding SPF and DKIM for SMTP Email Authentication and How to Configure Them in a DNS Server By: Rajat Kumar | 06 November, 2023

Learn how to enhance email security and combat spam with this comprehensive guide on configuring SPF and DKIM authentication in your DNS server. Understand the...

Understanding Nameservers in the DNS System: A Practical Guide with Examples By: Rajat Kumar | 26 September, 2023

Nameservers (also known as DNS servers) are a critical component of the Domain Name System (DNS). They play a fundamental role in translating human-friendly domain...

Wi-Fi Explained: How Does It Work and What You Need to Know By: Rajat Kumar | 17 June, 2023

Wi-Fi, short for "Wireless Fidelity," is a technology that allows devices to connect and communicate wirelessly over a computer network using radio waves.

Exploring the World Wide Web: What is the Internet and How Does It Work? By: Rajat Kumar | 11 June, 2023

In today's interconnected world, the internet has become an essential part of our daily lives. We rely on it for communication, information, entertainment, and numerous...

What is Domain Name Server (DNS) and How Does It Work? By: Rajat Kumar | 22 March, 2017

Hello techies today we are going to discuss about Domain Name Server or DNS for web servers and how the all these activity works in...

Protecting the Organization Data from Cyber Attacks (Session - 4) By: Rajat Kumar | 30 January, 2017

In this session we covers some of the technology and processes used by cyber security professionals when protecting an organization’s network, equipment and data. First,...

SMTP vs. IMAP vs. POP3: Understanding Mail and Data Transmission Differences By: Rajat Kumar | 27 December, 2016

SMTP, IMAP & POP3 are the 3 transmission protocols that are the part TCP (Transmission Control Protocol). TCP is connection oriented protocol that is by...