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Operating Systems
So, you're ready to delve into what your Linux VPS will run?
The Linux server platform is used worldwide by enthusiasts, technically-savvy entrepreneurs and small to large (very, large) companies. It has, without doubt, become one of the most powerful operating systems for VPS. Furthermore, it is a cost-effective replacement to Windows Server (or even Desktop) with fantastic desktop editing, email clients et al.
The most remarkable feature of Linux is that the Linux Operating System is entirely open-source. Due to this, it can feature and integrate with other open-source programs; like PHP-based applications, Apache Web server and so on. Without going into too much detail this is all well and good but what do its users say? Well, the Linux control panel console is largely preferred for editing configurations etc - so it's free and it's the preferred toolset.
There are many, many Linux distributions (commonly known as "distros") for users or for use on a server. So, if you are looking to deploy the Linux VPS for your workload, you can opt Linux “distros” or “distributions”, which this category will help you with.
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The article compares the implementation of SELinux in AlmaLinux and Rocky Linux, where it is enabled by default for robust security, with Ubuntu's use of AppArmor, which simplifies security management at an application level. Administrators who require stringent security measures may prefer AlmaLinux or Rocky Linux, while Ubuntu's AppArmor provides easier handling for specific application-focused security needs.
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Learn how to set up and manage disk quotas on Linux systems in this detailed guide. It covers installing necessary tools, configuring filesystems, initializing quotas, and setting specific space limits for users and groups. This guide ensures fair resource distribution and teaches monitoring and adjusting quotas to optimize storage management in multi-user environments. Find helpful links for further reading on advanced configurations and tools. -
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Learn how to set up SSH key authentication across different Linux distributions such as Ubuntu, Fedora, and CentOS. This guide covers generating, copying, and managing SSH keys with variations in handling SELinux contexts and firewalls across distributions. Gain practical security tips and explore distribution-specific commands to enhance system security. -
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This article explores the roles and security implications of default system users and groups like `nobody` and `www-data` in Linux systems. It discusses how these accounts, which operate with minimal permissions, help isolate services and mitigate damage from security breaches. The article also covers best practices such as regular audits and access controls to enhance system security. -
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This article explores CloudLinux's CageFS, a critical security tool for shared hosting that creates isolated environments for each user, greatly enhancing security, stability, and privacy. It covers CageFS mechanics, its integration with Linux bash scripting, and benefits like preventing unauthorized access and ensuring efficient server management. Ideal for IT professionals and hosting services aiming for higher security and operational efficiency. -
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This article offers a comprehensive guide on setting and managing strong password policies across Linux distributions like Ubuntu, CentOS, and Fedora, through Pluggable Authentication Modules (PAM). It details configuration steps for password rules, mandatory changes, and lockouts, emphasizing the importance of systematic password security and providing resources for further learning. -
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Explore essential techniques in the Linux Bash environment for managing users and groups in our guide, "Exploring User Group Management Differences in Linux Bash." Perfect for system administrators and Linux enthusiasts, this article covers key commands like `useradd`, `groupadd`, and `passwd`, and highlights the differences and nuances in usage for practical, secure management of user access and permissions. Read on to master these fundamental tools and enhance system security and management. -
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This article explores the nuances of using `sudo` on Ubuntu compared to RHEL-based distros like CentOS or Fedora. It highlights how user permissions are managed differently, with Ubuntu automatically adding users to the 'sudo' group and RHEL using the 'wheel' group. The piece also addresses configuration settings, including password prompts and the `NOPASSWD` option, stressing the impacts on system security and administration. -
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Explore the differences in default root access policies between RHEL-based distros and Ubuntu and their security implications. RHEL-based systems enable root access by default, fostering environments that demand broad admin control but requiring stringent security measures. Conversely, Ubuntu disables root access, using 'sudo' for administrative tasks, thus enhancing security and maintaining accountability. The blog underscores best practices tailored to operational needs and system security. -
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This article explores methods of user creation during Linux installation, focusing on GUI and CLI approaches. It discusses the GUI’s easy interface for beginners and CLI’s robust control for advanced users, detailing pros like automation and reduced resource use. Factors such as user experience, system resources, and scalability inform choosing the right setup method. -
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This article explores the challenges of integrating Flatpak across various Linux distributions. Despite its potential to make software distribution smoother by using universal packages, hurdles such as runtime inconsistencies, system integration, sandboxing overheads, and security risks persist. It discusses community efforts towards enhancing runtimes, theming APIs, and documentation to improve Flatpak's functionality and user experience, promoting a more unified Linux ecosystem. -
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Learn to manage orphaned packages in Linux distributions like Debian, Fedora, and Arch Linux. Our guide explains what orphaned packages are and provides specific commands and tools, such as deborphan, dnf repoquery, and zypper, for removing these unnecessary packages. Optimizing your system's performance and security, our article is a must-read for both system administrators and casual users looking to maintain a clean and efficient Linux system. -
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This article compares Ubuntu's adoption of Snap packages, which simplify updates and enhance security but increase resource use and potential integration issues, against other Linux distributions like Debian, Arch Linux, and Fedora that favor minimal, customizable installations. It discusses the trade-offs between convenience and control, helping users choose based on their preferences in managing their systems. -
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Discover how to secure your Linux system with GPG keys through this detailed guide on package installation. Learn about the role of GPG keys in public key cryptography, the importance of verifying package authenticity, and how to prevent malware. The article includes steps for using GPG keys across different Linux distributions like Debian, Fedora, and openSUSE, and emphasizes practices for maintaining system security and stability. -
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This guide provides detailed instructions on how to downgrade packages across various Linux distributions such as Ubuntu, Debian, Fedora, CentOS, openSUSE, and Arch Linux. It covers checking version availability, force-installing specific versions, and preventing automatic updates using package managers like APT, DNF, Zypper, and Pacman. Essential for maintaining system stability when newer software causes issues. -
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This article provides a detailed comparison of `zypper update`, `apt upgrade`, and `dnf update`, which are update commands for openSUSE, Debian/Ubuntu, and Fedora/RHEL respectively. It explores their functionalities, dependency management, and system impacts, highlighting features like Zypper's patch-centric approach, Apt's user-friendly syntax, and DNF's efficient dependency resolution. Useful for IT professionals and system administrators seeking insights for better software management across different Linux distributions. -
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Explore the differences between OpenSUSE Tumbleweed and Leap to find the perfect Linux distro for you. Tumbleweed offers the latest updates in a rolling release model, ideal for those who want the cutting-edge, while Leap provides stability and reliability with its point release pattern, great for critical environments. Whether you're a developer or need consistency, learn which version suits your needs best. -
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Explore the complexities of software compatibility between RHEL-based and Debian Linux distributions. Understand differences in RPM and DEB package systems, binary compatibility, and system configurations. Learn practical strategies like containerization and universal packages for cross-compatibility, vital for developers and system administrators managing diverse Linux environments. -
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This insightful article addresses the security risks of using third-party software sources in Linux. It highlights vulnerabilities such as compromised package integrity and update discrepancies. The article also offers best practices like verifying software signatures and using sandbox environments to enhance security while using external repositories. Essential reading for Linux users looking to maintain a secure system. -
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This article explores repository management commands in Ubuntu, Fedora, and Arch Linux. It covers commands for updating the package list, installing, upgrading, and removing software, as well as searching for packages and adding new repositories. Each section provides specific commands used in the respective Linux distribution to help users effectively manage their software packages. Further reading links offer additional resources for a deeper understanding of package management in these systems. -
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This article examines dependency management in Linux, focusing on the package managers DNF, APT, and Zypper for Fedora, Debian-based systems, and openSUSE, respectively. It explores how each manager addresses dependencies, their performance, and unique features, such as DNF's automatic solutions, APT's simplicity, and Zypper's SAT algorithm efficiency. This comparison aims to help users select the most suitable package manager based on their specific needs. -
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Explore the differences between Snap packages on Ubuntu and Flatpak on OpenSUSE in this article. Delve into their installation, security features, and application availability. Learn how Ubuntu’s Snap integration offers seamless updates and a wide ecosystem, while Flatpak on OpenSUSE emphasizes flexibility and performance, ideally supporting a cross-distribution landscape. Discover which system might best suit your Linux needs. -
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This article offers a comparative analysis of Ubuntu Software and KDE's Discover, key application stores in Linux distributions. It details their user interfaces, usability, performance, and range of applications. Ubuntu Software, suited to GNOME users, emphasizes ease with Snap and APT integration, while Discover caters to KDE users with broad format support and extensive customization. Both stores also facilitate Bash command integration, aiding script-based usage, which, along with insights on interface and performance, assists users in choosing the right store for their needs. -
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This guide delves into optimizing repository management for CloudLinux, discussing YUM and RPM fundamentals essential for package handling. It covers adding new repositories, managing priorities for security, and using tools like `repoman` and `yum-utils` for effective management, aiming to boost system security, stability, and performance.