Sendmail is a popular mail transfer agent used to send emails from one computer to another. It may installed by default on Ubuntu, which makes it a convenient option to sending emails from server. If you use Gmail, you can configure sendmail to send emails through Gmail account. In this ... Read More

Introduction Linux is an open-source operating system that has gained immense popularity for its stability and security. It is widely used in various fields such as web servers, embedded systems, and supercomputers. One of the key aspects of Linux is its efficient usage of sockets for interprocess communication. Sockets provide ... Read More

Are you interested in Android development and want to learn how to create amazing mobile apps? Then, you’ve come to the right place. In this article, we’ll be exploring some of the best Android development courses available in 2023. Android is the most popular mobile operating system, with over 2 ... Read More

Google Cloud Platform (GCP) is a cloud computing platform that offers a wide range of services to help businesses run their operations in the cloud. With its flexible and scalable infrastructure, GCP has become one of the most popular cloud platforms in recent years. If you're looking to learn how ... Read More

In the constantly evolving world of technology, it's imperative to stay updated with the latest developments in computer science. With numerous online courses available, it's challenging to determine which courses are worth taking. In this article, we'll discuss the best computer science courses to take in 2023. Artificial Intelligence (AI) ... Read More

Introduction Postfix is used mail transfer agent that is used to send and receive emails. It is easy to install and configure on Ubuntu server. In this tutorial, we will show you how to configure Postfix with Gmail on Ubuntu. Prerequisites Before you proceed, you will need the following − ... Read More

When it comes to sending email using Linux system, there are a few options to choose from. However, Sendmail is popular choices, and for good reason. Sendmail is efficient and reliable mail transfer agent (MTA) that handle large volume of emails. In this article, we will show you step-by-step how ... Read More

What is CHECKSUM? In computing, a checksum is a small-sized data created from a larger data set using an algorithm, with the intention that any changes made to the larger data set will result in a different checksum. Checksums are commonly used to verify the integrity of data that has ... Read More

Overview We sometimes need to determine how large or small a particular text document is. For example, if we're trying to figure out how long a certain email message is, we might use the number of lines in that message to help us estimate its size. Linux has several different ... Read More

What is Diffie-Hellman Key Exchange (exponential key exchange)? The Diffie-Hellman key exchange (also known as exponential key exchange) is a method for securely exchanging cryptographic keys over an insecure channel. It is a fundamental building block of many secure communication protocols, including SSL/TLS and SSH. The Diffie-Hellman key exchange works ... Read More