Linux Archives - Page 3 of 33 - ITFROMZERO

Linux AppArmor Guide: Creating Security Profiles to Sandbox Applications

By IT From Zero October 3, 2026

A hands-on guide to configuring AppArmor on Ubuntu/Debian: writing custom profiles, auditing logs in complain mode, and isolating processes against privilege escalation.

Ubuntu

Installing and Configuring CrowdSec on Ubuntu: A Production-Ready Alternative to Fail2ban

By IT From Zero October 3, 2026

A hands-on guide to installing and configuring CrowdSec on Ubuntu Server. Discover why CrowdSec outperforms Fail2ban through community CTI and resource efficiency.

Linux

How to Use Snapper on Btrfs: Automatic Snapshots and Linux Rollback on Failed Updates

By IT From Zero October 2, 2026

Protect Linux servers from broken kernel and package updates using Btrfs and Snapper. A comprehensive guide to automated snapshots and 30-second system rollbacks.

Network

Configuring a DNS Firewall with Response Policy Zones (RPZ) on BIND9: Block Malware and Phishing Effectively

By IT From Zero October 2, 2026

A detailed guide on deploying a DNS Firewall with Response Policy Zones (RPZ) in BIND9. Block malware and phishing directly at your internal DNS resolver with minimal overhead.

Security

A Guide to Network Packet Capture and Analysis with Tshark on Linux: Investigating Anomalous Traffic and Detecting Attacks from the CLI

By IT From Zero October 1, 2026

A practical guide to capturing and analyzing network packets from the Linux command line using Tshark to investigate port scans, detect DNS anomalies, and stop SSH brute-force attacks.

Network

Netdisco: Effortless Network Topology Automation and Switch Port Management

By IT From Zero September 25, 2026

Stop worrying about manual cable tracing. This detailed guide shows you how to install Netdisco to automate topology mapping and switch port management via SNMP.

Network

Deploying FastNetMon: A Lightweight DDoS Detection Solution via NetFlow/sFlow

By IT From Zero September 23, 2026

Learn how to install FastNetMon for automated DDoS detection. An optimized NetFlow/sFlow analysis solution to protect your network without consuming CPU resources.

Virtualization

Installing Genymotion on Linux: A ‘High-Speed’ Android Emulator for Developers

By IT From Zero September 17, 2026

Detailed review and installation guide for Genymotion on Linux. A low-RAM, fast-booting, and extremely smooth Android emulation solution for developers.

Fedora

Fedora + IBus-Bamboo: Typing Vietnamese as Smoothly as Windows on Wayland

By IT From Zero September 16, 2026

Typing Vietnamese on Fedora often causes missing characters and underline issues. This guide shows how to install IBus-Bamboo and configure Wayland to fix these bugs in Chrome and VS Code.

Linux

Atuin: A Lifesaver for Terminal History with SQLite and Fuzzy Search

By IT From Zero September 15, 2026

Replace your clunky history manager with Atuin. Leverage the power of SQLite for ultra-fast command searching, E2EE synchronization, and smart command filtering.