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Operating System Articles
Page 53 of 171
Creating Virtual Hosts, Generate SSL Certificates _ Keys and Enable CGI Gateway in Gentoo Linux
Setting up a web server to host multiple websites is a common task for system administrators and developers. In this guide, we will cover how to create virtual hosts, generate SSL certificates and keys, and enable CGI gateway in Gentoo Linux. Virtual hosts allow you to host multiple websites on a single server, each with their own unique domain name and content. This is useful when you want to host multiple websites with different purposes or for different clients on a single server. Enabling SSL on your website is important for security and to establish trust with your ...
Read MoreCryptmount – A Utility to Create Encrypted Filesystems in Linux
Cryptmount is a Linux utility that allows you to create encrypted filesystems. With cryptmount, you can create an encrypted container that can be mounted as a virtual drive, and any data stored in that container will be automatically encrypted and decrypted as needed. This provides a secure way to protect sensitive data, even if your computer is compromised. What is Cryptmount? Cryptmount works by creating a virtual block device that can be mounted as a regular filesystem. The data stored on this virtual device is encrypted using strong ciphers, and a key is required to decrypt the data. ...
Read MoreDeploy and Manage Rancher Management Cluster with Workload Cluster in BMC
In the world of containerization and microservices, it has become increasingly important to manage and orchestrate container workloads across a large infrastructure. Rancher is an open-source container management platform that makes it easy to deploy and manage container workloads across multiple clusters and clouds. This article will guide you through the process of deploying and managing a Rancher management cluster with a workload cluster in BMC (Bare Metal Cloud). Prerequisites Before we begin, there are a few prerequisites you need to meet − A BMC account with access to the BMC cloud infrastructure. Familiarity with Kubernetes ...
Read MoreHow to use tmux on Linux?
Tmux is a terminal multiplexing utility for Unix systems that provides an interface between several programs running simultaneously on one computer. It allows users to detach from terminal sessions without killing them and reattach later, making it invaluable for remote work and long-running tasks. Tmux operates through sessions, windows, and panes — sessions contain multiple windows, and windows can be split into multiple panes. All commands use a prefix key (default: Ctrl-b) followed by another key. Installation Install tmux on Debian-based Linux systems using the apt package manager − sudo apt-get update sudo apt-get install ...
Read MoreLoad Environment Variables in a Cron Job
When crontab runs a command, it doesn't read any environment variables from files like ~/.bashrc, ~/.bash_profile, etc. Because cron runs tasks from a non-interactive, non-login shell, it operates with a minimal environment. Some applications require specific environment variables to function correctly, making it necessary to load them explicitly in cron jobs. This article explores different methods for loading environment variables in crontab to ensure your scheduled tasks have access to the required configuration. Setting the BASH_ENV Variable We can set environment variables for shell scripts by using the BASH_ENV variable. When BASH_ENV is set, bash executes the ...
Read MoreDiscourse - A Modern Forum for Community Discussion
Are you looking for a modern and feature-rich forum platform to host your community discussions? Look no further than Discourse! Discourse is a free, open-source forum software that is designed to be fast, user-friendly, and highly customizable. This article covers everything you need to know to get started with Discourse, including its features, installation, and configuration. What is Discourse? Discourse is a modern, open-source, and feature-rich forum software that allows users to have discussions and share knowledge in a community-driven environment. It is designed to provide a more engaging and interactive experience than traditional forums, with a clean ...
Read MoreDiskonaut – A Terminal Disk Space Navigator for LinuxDisplaying phoenixnap_sysadmin.txt
If you're a Linux user, you're probably used to using the command line interface to navigate your files and directories. One of the challenges of working in a terminal environment is managing disk space. As you install more programs and save more files, your hard drive can quickly become cluttered and disorganized, making it difficult to find the files you need. Fortunately, there are tools available that can help you manage your disk space more efficiently. In this article, we'll be introducing Diskonaut, a terminal-based disk space navigator for Linux. Diskonaut is a lightweight and user-friendly tool that allows ...
Read MoreDNS Best Practices for Security and Performance
DNS (Domain Name System) is the internet's address book, translating human-readable domain names into IP addresses. While essential for web browsing, DNS is also a prime target for cyber attacks including cache poisoning, DDoS attacks, and DNS hijacking. Implementing proper security and performance practices is crucial for maintaining a robust DNS infrastructure. This article covers essential DNS best practices to enhance both security and performance, helping you build a resilient DNS infrastructure that protects against threats while delivering optimal user experience. Use DNSSEC DNSSEC (Domain Name System Security Extensions) provides cryptographic authentication for DNS responses, preventing attackers ...
Read MoreDifference between Host and Guest Operating Systems
Virtualization is the process of creating virtual versions of operating systems, servers, and network resources. It allows applications that lack compatibility with a system to run on the same computer by breaking the system into multiple virtual environments. In virtualization, the physical system is divided into multiple parts called virtual machines. The original system is known as the Host system with its Host OS, while the virtual machines are called Guest systems running their respective Guest OS. Virtualization Architecture Physical Hardware (CPU, Memory, ...
Read MoreDifference between Mobile and Desktop Operating System
An Operating System (OS) is a bridge between software and underlying hardware components. It is the first program loaded by the BIOS when a computer is turned on and manages all system resources including memory, files, input/output operations, and external drivers. Operating systems enable multitasking, provide user interfaces through CLI or GUI, and allow data storage and sharing. There are different types of operating systems designed for various computing platforms. This article explores the key differences between Mobile Operating Systems and Desktop Operating Systems. What is a Mobile Operating System? A Mobile Operating System is lightweight system ...
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