Debian 13.6 (Trixie) In Action: Learn from Scratch, Master Servers, Networking, Security, Storage, and Troubleshoot the Most Common Real-World Problems

Debian 13.6 (Trixie) In Action: From Zero to Confident Linux Administration Stop guessing your way through Linux administration and build the practical skills needed to manage, troubleshoot, secure, and maintain modern Debian infrastructure. Whether you're completely new to Linux, a developer moving into infrastructure, a DevOps engineer, an aspiring system administrator, or a homelab enthusiast, Debian 13.6 (Trixie) In Action takes you from foundational concepts to confident, real-world administration. This practical guide focuses on understanding how Debian actually works-not simply memorizing commands. You'll learn how the kernel, systemd, filesystems, networking, package management, and security components work together so you can diagnose problems logically instead of relying on trial and error. Inside, you'll learn how to: - Navigate Linux confidently and manage users, groups, permissions, and the filesystem.- Master APT and dpkg, resolve dependency conflicts, and repair broken package installations.- Manage systemd services, boot processes, units, dependencies, and logs with journalctl.- Configure networking, routing, DNS, NetworkManager, and secure OpenSSH access.- Build reliable storage using LVM, RAID, ext4, XFS, ACLs, quotas, and SMART monitoring.- Harden Debian systems using nftables, AppArmor, access controls, and auditing.- Deploy and manage servers, containers, and virtual machines with Docker, Podman, LXC, KVM, QEMU, libvirt, and Proxmox.- Troubleshoot real-world Linux failures using practical diagnostic methods, checklists, decision trees, and recovery playbooks. From your first commands to advanced administration and troubleshooting, this book is designed to help you develop the knowledge, confidence, and problem-solving mindset of a capable Debian administrator. Learn Debian 13.6. Understand Linux at its core. Troubleshoot with confidence. Take control of your infrastructure.