Unlike traditional servers that require dozens of lines just to get started, a Caddyfile reverse proxy can be configured in as few as three lines while automatically handling HTTPS certificates. Whether you’re looking for a Caddyfile reverse proxy Docker Compose setup or need to configure Caddy WebSocket proxy configuration, this guide covers every scenario. A […]

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Quick Answer: nproc limits control the maximum number of processes/threads a user can create (default: 1024–4096), while nofile limits restrict the maximum number of open file descriptors per process (default: 1024). Both are critical Linux resource limits that prevent system overload and ensure stability. Configure them via /etc/security/limits.conf or systemd service files. Every Linux system […]

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Recently, after installing Debian 13 (Trixie) using a DVD or ISO, when I tried to update the system by running the sudo apt update command, I got this error: This is not something that only happened with Debian 13, but also with other versions. So, what is this error, and why does it appear? In […]

The post How to Fix “cdrom:// Debian GNU/Linux 13.1.0 Trixie DVD” Error in APT appeared first on LinuxShout.

The transition from Debian 12 “Bookworm” to Debian 13 “Trixie” represents a significant milestone in the Debian ecosystem, bringing enhanced performance, updated packages, and improved security features that make the upgrade worthwhile for both personal and enterprise systems. Whether you’re a seasoned system administrator managing critical infrastructure or a Linux enthusiast running Debian on your […]

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Installing Google Chrome on Debian 13 is similar to setting it up on Ubuntu or other distributions. However, with the right approach, you can have it running smoothly in minutes. As a Linux system administrator who has deployed Chrome across multiple Debian workstations and servers, I present a detailed tutorial on every possible way to […]

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The steps provided here for installing Chromium on Debian 13, 12, and 11 will also work for Debian 10 Buster and other previous versions, including Ubuntu, Linux Mint, MX Linux, Kali Linux, and more.  Chromium is an open-source browser from Google, on which “Google Chrome” is based. With this web app, developers and users always […]

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Since I started learning about computers, I have heard many experienced users say Linux is impenetrable, Linux offers the best security, and so on. It is partly true that Linux offers various security measures that mitigate attacks and stop hackers from breaching your system network. However, you should also understand that simply deploying Linux on […]

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When managing network security on Linux systems, understanding the distinction between a firewall and firewalld is quite vital for effective system administration. While these terms might sound similar, they represent fundamentally different concepts in the Linux security ecosystem. A firewall is a broad term referring to any network security system—whether software or hardware—that monitors and […]

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In this article, we will learn the simple steps and commands to install a graphical user interface (GUI) for managing FirewallD on either AlmaLinux or Rocky Linux 9/8. However, the steps are the same for CentOS, Red Hat, Oracle Linux, and other RPM-based distros. FirewallD is a command-line tool to provide a system firewall feature […]

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