This tutorial explains how to whitelist IP addresses using fail2ban and includes instructions for fail2ban installation on Debian and other Linux distributions. Whitelisting an IP address on fail2ban: The fail2ban configuration file is jail.conf. You must not edit this file; instead, copy the jail.conf file into a new one, like <customisation>.local. The command below will […]
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Grep is a command-line utility that can search and filter text using a common regular expression syntax. It is so ubiquitous that the verb “to grep” has emerged as a synonym for “to search.” grep is a useful tool for finding all occurrences of a search term in a selection of files, filtering a log file or
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The major components or activities involved in setting or installing a complete email server for production usage involves MTA (Mail Transfer Agent), MDA (Mail Delivery Agent), Antivirus, Spam Detection, and Web Interface. The MTA is required to communicate or relay emails between the internet and the email server to send and receive emails to other
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Introduction When you first create a new Ubuntu 20.04 server, you should perform some important configuration steps as part of the initial setup. These steps will increase the security and usability of your server, and will give you a solid foundation for subsequent actions. Step 1 — Logging in as root To log into your
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if you have installed multiple versions of PHP (eg PHP 7.4 and PHP 5.6 both). PHP 7.4 is running as default PHP for Apache and CLI. For any requirement, you need to use PHP 5.6. Then you don’t need to remove PHP 7.4. You can simply switch your PHP version to default used for Apache
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Introduction As a web administrator, you may find it valuable to restrict some parts of a website from visitors, whether temporarily or on a permanent basis. While web applications may provide their own authentication and authorization methods, you can also rely on the web server itself to restrict access if these are inadequate or unavailable.
How To Set Up Password Authentication with Apache on Ubuntu 18.04 Read More
Introduction Apache is part of the popular LAMP (Linux, Apache, MySQL, PHP) stack of software. It’s responsible for the function of most of the internet. This guide will show you how to restart Apache service on Linux CentOS 7. Prerequisites Access to a user account with sudo privileges An installed and configured Apache installation Access to a command line /
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When I want to deploy my last changes to my VPS, I always connect to my server with ssh and pull the project, install last packages, run migrations, and so on. I’m a lazy person to repeat this process over and over. Auto deployment comes to rescue. So whenever I make changes and push it, I
How to deploy a Laravel application with GitLab CI/CD Read More
Introduction One way to guard against out-of-memory errors in applications is to add some swap space to your server. In this guide, we will cover how to add a swap file to an Ubuntu 20.04 server. Warning: Although swap is generally recommended for systems using traditional spinning hard drives, placing swap on SSDs can cause issues
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For any person, who does not have a sound knowledge of Linux Operating System and Linux File System, dealing with the files and their location, their use may be horrible, and a newbie may really mess up. This article is aimed to provide the information about Linux File System, some of the important files, their usability and location. Linux Directory Structure Diagram A standard Linux distribution
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