The dmesg command-line utility is used to view and control the kernel ring buffer in Linux and other Unix-like operating systems. It is useful for examining kernel boot messages and debugging hardware related issues. In this guide, we will show you the basics of the dmesg command. In the Linux operating system the Linux kernel
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How to Setup Automatic Kernel Updates on Linux
Applying security updates to the Linux kernel is a straightforward process that can be done using tools such as apt , yum, or kexec. However, when managing hundreds or thousands of servers running different Linux distribution to patch, this method can be challenging and time-consuming. Manually updating the kernel requires rebooting the system. This results
How to Copy, Cut and Paste in Vim / Vi
It is common action to do copy, cut and paste text when working with the text files. Vim is a text editor which is comes preinstalled on macOS and almost all Linux distributions. It’s good to have basics of Vim if your favorite editor is not available. In this article we will show you how
How to Install Chromium Web Browser on Ubuntu 20.04
Chromium is a fast, stable, and secure browser built for the modern web. It is the base of many browsers, including the most popular web browser in the world Google Chrome . The key difference between Chromium and Chrome is that Chromium is open-source. It Chromium doesn’t include proprietary web codecs and doesn’t send crash
Using the SSH Config File
If you are doing administrator work or need to connect regularly the multiple remote systems via SSH, it is difficult to remember all the remote IP addresses, usernames and ports. For this problem there is a simple solution is to using OpenSSH set up a per-user configuration file and store different SSH options for each
How to Install Atom Text Editor on Ubuntu 20.04
Atom is a free and open source cross-platform code editor developed by GitHub. It It includes support package manager, Node.js plugins, embedded Git control, smart auto-completion, syntax highlighting and multiple panes. Atom is a desktop application built using web technologies. Atom is based on Electron a framework that enables cross-platform desktop applications using Chromium and
Usermod Command in Linux
usermod is a command-line utility that allows you to modify a user’s login information. This article covers how to use the usermod command to add a user to a group, change a user shell, login name, home directory, and more. usermod Command # The syntax of the usermod command takes the following form: usermod [options]
How to Install and Configure Fail2ban on Ubuntu 20.04
Fail2ban is an open-source tool which is used to protect your Linux system from Brute Force and DDoS other automated attacks. It blocks the client which are repeatedly fail to authenticate correctly with the services configured for it. Actually, it monitoring the logs of services for malicious activity and identify the automated attacks. This article
How to Install Apache Cassandra on Debian 10
Apache Cassandra is an open-source NoSQL database system with high availability and without compromising performance. It is used by many large companies like Github, NetFlix, Reddit and Instagram. In this described how to install Apache Cassandra on Debian 10 Buster. Prerequisites# You should logged in as root or user with sudo privileges. Step 1 –
How to Install Slack on Ubuntu 20.04 System
Slack is a widely used and popular platform for messaging and collaboration service. It’s much easier to use Slack straight and organize channels. You can make channels for you coworkers, projects, topics or any other purpose to keep conversations proper and organized. It also allows you audio and video calls as well as sharing of