Linux Articles - Page 91 of 139

Introduction Linux is powerful operating system it provides a variety of command-line tools to managing files or directories. One of most useful tool is find command, it allows users to search any files and directories based on a wide range of search criteria. In this article, you will get a comprehensive guide to using find command, including a variety of examples that demonstrate its capabilities. Basic Usage The basic syntax of find command is as follows − find [path] [expression] The path argument specifies starting directory for search, and expression argument specifies criteria for search. Here are ... Read More

Introduction Postfix is open-source mail transfer agent (MTA) it allows users to send and receive email on Linux system. It is efficient and easy-to-use solution, it can configured to work with various email providers, including Gmail. In this article, we will show you steps to configure Postfix using Gmail SMTP on Ubuntu. This process involve setting up Gmail account to allow any apps to access it, installing and configuring Postfix, testing setup to ensure it works. Before dive into details, let's take why you might want to use Gmail SMTP with Postfix. Why Use Gmail SMTP with Postfix? Using ... 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 to set up Sendmail on your Ubuntu system. Before we start installation process, let's talk to understand how Sendmail works. Sendmail works by accepting email messages from local or remote mail clients, then relaying them to destination mail servers. This messages can delivered to other machines on the local network ... Read More

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 article, we will show you the process of configuring sendmail with Gmail on Ubuntu. Requirements Before starting, there are few requirements that need to configure sendmail with Gmail on Ubuntu − A Gmail account A Ubuntu server Sendmail installed on your Ubuntu server OpenSSL installed on your Ubuntu server ... 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 − A running Ubuntu server A Gmail account A valid domain name that is configured to point to the server's IP address Step 1: Install Postfix In the first step install Postfix on your Ubuntu system. You can do this by running following command − sudo apt-get install postfix ... Read More

Linux is a popular operating system among computer enthusiasts. It is a free and open operating system. Shells are the screens that we utilize to control an operating system. Shells are CSH and BASH. Shells act as a channel for communication between programmers and the device. We issue orders and obtain results. The C-shell was named after the C programming syntax. One of its many benefits is the ability to regulate jobs. It may be accessed via script shell command runner and interactive shell login. It might not be easy to use at times. Bash is a shell software similar ... Read More

Firewalls are an integral component of every contemporary computer system, safeguarding the network and protecting the system from illegal access. We'll take a deep dive into the realm of Linux firewalls and learn how to configure one in this post. Before we involve into the technical details of establishing a firewall in Linux, let us clarify what a firewall is and why it is so important! A firewall is a network security device that monitors and restricts network traffic based on predefined security rules. A firewall's principal function is to block unauthorised access to a computer system or network while ... Read More

Introduction The echo command is a fundamental command in Linux that is used to send text or variables to the terminal. It is one of the most basic and essential Linux commands, and mastering it is imperative for beginners to navigate the command line more easily. In this post, we'll take a closer look at the use and advanced features of the echo command. Basic use of echo command The echo command is used to print text to the terminal. It can be used with both single and double quotes, with double quotes allowing the use of variables and special ... Read More

Introduction The watch command in Linux is a powerful tool that allows you to execute a program periodically, showing output in fullscreen. This command runs the specified command repeatedly, displaying its output and errors. By default, the specified command runs every two seconds and watch runs until interrupted. In this article, we will explore the various options and uses of the watch command. Syntax of watch command The basic syntax of the watch command is − $ watch [options] command The watch command has several options that can be used to customize its behavior. These include − -d, ... Read More

Introduction When working with files in the terminal on Linux, there may be times when you want to delete a file but also keep a copy of it just in case. This is where the concept of "soft delete" comes into play. A soft delete allows you to move a file to a designated recycle bin or trash, instead of permanently deleting it. That way, if you accidentally delete a file, you can easily get it back. In this article, we will explore how to delete files from the terminal on Linux using the "trash-put" command. We will also discuss ... Read More