Firefox 139 adds custom New Tab wallpapers, improved HTTP/3 performance, and AI-powered link previews, but nothing flashy - for the first time in a while.
You're reading Firefox 139 Brings Custom New Tab Wallpapers, Better Upload Speeds, a blog post from OMG! Ubuntu. Do not reproduce elsewhere without permission.
Flexbar, a crowdfunded Touch Bar clone, has begun shipping to backers. Better yet: the team has added Linux support too, which is great to see.
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When you build a server according to your plan and requirements, you want it to run quickly and efficiently, right?
The post How to Stop and Disable Unwanted Services from Linux System first appeared on Tecmint: Linux Howtos, Tutorials & Guides.FTP stands for File Transfer Protocol and is one of the most widely used and standard protocols over the Internet,
The post Top 15 VsFTP Server Interview Questions with Detailed Answers first appeared on Tecmint: Linux Howtos, Tutorials & Guides.Linux 6.15 kernel released with new NVIDIA Rust driver, major exFAT performance gains, controversial fwctl subsystem, and more hardware support.
You're reading Linux 6.15 Kernel Released, This is What’s New, a blog post from OMG! Ubuntu. Do not reproduce elsewhere without permission.
No need to hunt through GNOME Settings to adjust Night Light temperature intensity as this nifty extension adds an intensity slider control in the Quick Settings menu.
You're reading This Extension Adds Night Light Intensity Slider to Quick Settings, a blog post from OMG! Ubuntu. Do not reproduce elsewhere without permission.
Pocket, the popular "read it later" service Mozilla bought in 2017, is shutting down on July 8. Users have until October to export data. Why? Well…
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Canonical's kernel team has confirmed that Ubuntu 25.10 will run on the Linux 6.17 kernel - expected, following the distro maker's kernel cadence change.
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In an era where cyber threats are evolving rapidly, securing Linux systems goes far beyond basic user permissions. Traditional security mechanisms like Discretionary Access Control (DAC) offer limited safeguards against privilege escalation, compromised applications, and insider threats. To address these limitations, Security-Enhanced Linux (SELinux) offers a powerful, fine-grained framework for Mandatory Access Control (MAC) — and it's not just for Red Hat-based distributions anymore.
In this article, we'll explore how to integrate SELinux into Debian, one of the most widely used and respected GNU/Linux distributions. We'll break down its architecture, setup procedures, policy management, and troubleshooting techniques. Whether you're running a mission-critical server or seeking to harden your desktop environment, this guide will show you how SELinux can elevate your system security to enterprise-grade standards.
Understanding the Foundations of SELinux What Is SELinux?SELinux is a kernel security module initially developed by the United States National Security Agency (NSA) in collaboration with the open-source community. It introduces the concept of mandatory access controls by enforcing policy-based rules that strictly define how processes and users can interact with files, directories, sockets, and devices.
Unlike DAC, where file owners control access, MAC policies are imposed by the system administrator and enforced by the kernel, regardless of user ownership or permissions.
Core Components of SELinuxSubjects: Active entities (usually processes).
Objects: Passive entities (like files, directories, devices).
Contexts: Security labels assigned to subjects and objects.
Types/Domains: Used to define access rules and behavior.
Policies: Written rulesets that determine access control logic.
Enforcing: SELinux policies are applied and violations are blocked.
Permissive: Policies are not enforced, but violations are logged.
Disabled: SELinux is turned off entirely.
Debian has traditionally favored AppArmor for its simplicity and ease of integration. However, SELinux support is fully present in Debian’s repositories. As of Debian 12 (Bookworm) and later, integrating SELinux is more streamlined and better documented than ever.
Go to Full ArticleGNOME is looking to jettison X11 session support - as soon as this year, which may impact Ubuntu's plans for its next long-term support release.
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Imagine you’re happily working on your Linux system, maybe compiling a package, running updates, or just browsing and suddenly, your
The post How to Trigger and Fix a Linux Kernel Panic first appeared on Tecmint: Linux Howtos, Tutorials & Guides.High Tide, an unofficial TIDAL client for Linux, now offers background playback, audio normalisation, synced lyrics and various visual improvements.
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Fender Studio is a new free cross-platform DAW for Linux, backed by the iconic instrument maker. Learn what it can do and where to download.
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In today's fast-paced IT environments, performance, reliability, and scalability are critical factors that determine the effectiveness of a network. Advanced Linux networking techniques such as VLAN trunking, interface bonding, and Quality of Service (QoS) are key tools in the hands of system administrators and network engineers who aim to build robust and efficient systems. Whether you're managing a data center, configuring high-availability clusters, or optimizing bandwidth for critical services, these technologies provide the foundation for high-performance networking on Linux.
This article explores each of these advanced networking capabilities, explaining their benefits, configurations, and practical use cases. By the end, you will have a comprehensive understanding of how to implement VLANs, bonding, and QoS effectively on your Linux systems.
Understanding VLAN Trunking in Linux What is VLAN Trunking?Virtual LANs (VLANs) allow the segmentation of a physical network into multiple logical networks. VLAN trunking is the process of transporting multiple VLANs over a single network link—typically between switches or between a switch and a server. This allows a single network interface card (NIC) to handle traffic for multiple VLANs, optimizing resource usage and simplifying cabling.
Trunking is crucial in virtualized environments where multiple virtual machines (VMs) or containers need to reside in separate VLANs for security or organizational reasons.
Why Use VLAN Trunking?Isolation: Separates traffic for security and compliance.
Efficiency: Reduces the number of physical interfaces needed.
Scalability: Makes it easy to add or modify VLANs without physical changes.
Linux supports VLANs natively via the kernel module 8021q. The modern toolset uses the ip command from the iproute2 package for configuration. Older systems may use the vconfig utility, though it's now deprecated.
Ensure the module is loaded:
sudo modprobe 8021q
Creating VLAN InterfacesUse the ip command:
sudo ip link add link eth0 name eth0.10 type vlan id 10 sudo ip addr add 192.168.10.1/24 dev eth0.10 sudo ip link set dev eth0.10 up
Persistent ConfigurationOn Ubuntu (netplan):
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