RPM is a package format used by Red Hat based derivatives like CentOS, RHEL or Fedora. It gets its name from the RPM Package Manager (RPM), a free and open-source package management system for installing, uninstalling, and managing software packages in Linux. In this tutorial, learn how to install .rpm packages on Ubuntu.
There may come a time when you need to change the admin password on your Windows Server. How to change your administrator password largely depends on whether you remember the old password or not. If you are routinely changing a known administrator password, you can use the user interface. However, if you're changing an unknown administrator password, you may need to use the command line interface.
The Linux kernel is much like the central brain of the operating system. Although it is open-source – meaning anyone can view and modify the code – the Linux kernel is built with multiple protocols to ensure stability and security. This guide will walk you through how to check the Linux kernel version of your operating system.
OpenSSL is an open-source cryptographic library and SSL toolkit. The applications contained in the library help create a secure communication environment for computer networks. This article explains how to determine the OpenSSL version by entering a single command.
A Certificate Signing Request (CSR) is the first step in setting up an SSL Certificate on your website. An SSL Certificate secures and encrypts traffic between a client and a website. This is helpful for preventing cybercrime, fraud, and a compromised website. This guide will walk you through the first step in using an SSL Certificate – generating a CSR. The next step includes submitting your request to a recognized Certificate Authority (CA).
The .htaccess file in WordPress is a configuration file for managing hyperlinks. It is most commonly used to rewrite URLs, making them clearer and more readable by both people and search engines. This file is included by default in a new WordPress installation. This guide will help you find, modify, and create a .htaccess file for WordPress.
Are you running into the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error? This error happens in a user’s browser when they try to access a website. It means that there’s a difference between the security information that was provided and the actual configuration of the website. This guide provides solutions.
Nmap stands for Network Mapper. It is an open source tool for network exploration and security auditing. With NMAP, server administrators can easily reveal hosts and services on a computer, scan for security issues and check for open ports. The NMAP command line tool can audit and discover local and remote open ports, as well as network information and hosts. Here are some of the most useful Nmap commands with examples.
There are many different tools for monitoring network traffic on a Linux server. Each option has its strengths and weaknesses. Most of the command-line utilities are designed to be lightweight, so they do not inflate bandwidth reports. Some are designed to present a basic overview, while others provide detailed data. This guide offers the best Linux network monitoring tools.
If you do not keep your Ubuntu operating system up-to-date, you run the risk of compromising overall system security. Managing the process manually, wastes valuable resources and can even lead to overlooking essential security updates. In this tutorial, we explain how to Enable automatic security updates in Ubuntu 18.04. Doing so ensures your system stays protected with the latest security packages at all times.