41 articles
comparison
Ubuntu vs Debian: Which Should You Choose
Ubuntu vs Debian compared for sysadmins: release cycles, package freshness, LTS support, cloud deployment, and real performance data. Pick the right one.
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comparison
Arch Linux vs Ubuntu: Which Is Right for You
Arch Linux vs Ubuntu compared for sysadmins and DevOps engineers. Package managers, update cycles, stability, and real-world production use cases covered.
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best
Best Linux Distro for Servers in 2025
Ubuntu 24.04, RHEL 9, Debian 12, or Rocky Linux 9 - we tested all four on real server workloads. Here's which distro wins for each use case.
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guide
How to Set Up SSH on Linux
Set up SSH on Linux the right way: install, harden, key auth, port forwarding, and config tuning. Real commands for sysadmins and DevOps engineers.
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guide
Linux File Permissions Explained
Master Linux file permissions: octal modes, ACLs, setuid, sticky bits, and real-world examples for sysadmins and DevOps engineers.
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best
Best Linux Distro for Beginners in 2025
We tested 8 beginner Linux distros in 2025. Here are the real numbers on install time, RAM usage, and which one to actually recommend to new users.
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guide
Linux Cron Job Tutorial: Schedule Tasks
Schedule Linux tasks with cron: syntax, real examples, crontab pitfalls, and production-ready patterns for sysadmins and DevOps engineers.
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guide
Ubuntu Server Setup Guide: First Steps
Harden and configure Ubuntu 24.04 LTS from first login to production-ready in under 30 minutes. Real commands, no filler, for sysadmins.
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guide
How to Harden a Linux Server: 2025 Checklist
A practical Linux server hardening checklist for sysadmins: SSH lockdown, firewall rules, kernel tuning, auditd, and more. Real commands, tested configs.
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best
Best Linux Desktop Distro in 2025
We tested 8 Linux desktop distros in 2025 on real hardware. Here are our picks for sysadmins and DevOps engineers, with benchmarks and real commands.
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guide
How to Install and Configure Nginx on Linux
Install, harden, and tune Nginx on Linux in 2026. Real commands for Ubuntu, RHEL, and Debian. Covers TLS, worker tuning, and production config.
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guide
Docker on Ubuntu: Complete Setup Guide
Install and configure Docker on Ubuntu 24.04 LTS. Real commands, daemon hardening, Compose v2, and production-ready setup for sysadmins.
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comparison
Nginx vs Apache in 2025: Which Web Server
Nginx vs Apache benchmarked in 2025: concurrency, memory, config syntax, modules, and a direct recommendation for sysadmins running production workloads.
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guide
Bash Scripting Tutorial for Beginners
Learn Bash scripting with real commands, real examples, and sysadmin-focused patterns. Variables, loops, functions, error handling, and more in one guide.
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guide
How to Set Up Nginx as a Reverse Proxy
Set up Nginx as a reverse proxy with SSL termination, upstream health checks, and headers configuration. Real commands, tested on Nginx 1.26.
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guide
systemd Tutorial: Managing Services on Linux
Master systemd service management with real commands: unit files, targets, timers, journald, and dependency graphs. For sysadmins who need results fast.
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guide
grep Command Tutorial: Find Anything in Linux
Master grep with real examples: regex, recursive search, context flags, performance tips, and common sysadmin patterns. Tested on GNU grep 3.11.
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reference
Linux Crontab: Practical Examples
Practical Linux crontab examples for sysadmins: log rotation, backups, monitoring, and advanced scheduling with real commands and syntax.
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guide
Linux Firewall: UFW Guide for Beginners
Master UFW on Linux: real commands for rules, application profiles, logging, rate limiting, and IPv6. Tested on Ubuntu 24.04 and Debian 12.
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guide
Linux Process Management: ps, kill, top
Master Linux process management with ps, kill, and top. Real commands, signal tables, filtering tricks, and automation patterns for sysadmins in 2026.
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reference
Linux Permissions: chmod and chown Reference
Complete chmod and chown reference with octal modes, ACLs, recursive ownership, and real commands for Linux sysadmins and DevOps engineers.
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guide
Linux User Management: adduser, chmod, sudo
Master Linux user management with adduser, chmod, and sudo. Real commands, permission models, and sudoers config for sysadmins and DevOps engineers.
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guide
Nginx Configuration Guide: Essential Settings
Master Nginx essential settings with real configs for performance, security, and TLS. Tested on Nginx 1.26 with actual benchmarks and production examples.
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guide
Linux SSH Config File: Full Guide and Options
Master the SSH client config file with real examples, per-host settings, ProxyJump chains, multiplexing, and key management for sysadmins and DevOps.
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reference
Linux Networking Commands Cheatsheet
Essential Linux networking commands for sysadmins: ip, ss, nmap, tcpdump, netstat, curl, dig and more. Real examples, real flags, no filler.
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guide
Linux Disk Management with LVM
Master LVM on Linux: PV, VG, LV setup, live resizing, snapshots, and thin provisioning with real commands tested on RHEL 9 and Ubuntu 24.04.
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guide
Linux Performance Tuning: Practical Techniques
Real sysadmin techniques for Linux performance tuning: kernel parameters, CPU scheduling, I/O, memory, and network tuning with tested commands and numbers.
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comparison
Linux Package Managers: apt vs yum vs pacman
Compare apt, yum, and pacman package managers on speed, dependency resolution, scripting, and real-world sysadmin use cases. Tested in 2026.
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guide
Linux Environment Variables: How to Use Them
Master Linux environment variables: set, export, scope, persistence, and real-world DevOps patterns. Practical commands for sysadmins and engineers.
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guide
Linux Network Configuration Guide
Configure Linux networking with ip, nmcli, and systemd-networkd. Real commands for static IPs, bonding, VLANs, and DNS on RHEL 9 and Ubuntu 24.04.
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guide
Linux sudo Guide: Privileges and Configuration
Configure sudo correctly on Linux: sudoers syntax, privilege delegation, logging, and security hardening with real commands and config examples.
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guide
Linux Swap: How to Manage and Configure It
How to create, resize, and tune Linux swap space in 2026. Covers swapfile vs partition, swappiness, zswap, and production recommendations.
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guide
Linux Memory Management: RAM, Swap, and Cache
Master Linux memory management: understand RAM allocation, swap tuning, page cache behavior, and real commands to diagnose and fix memory pressure in 2026.
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best
Best Backup Tools for Linux Servers in 2025
7 battle-tested Linux backup tools compared with real commands, benchmarks, and config examples. We tested rsync, Restic, BorgBackup, Bacula, and more.
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reference
Linux sed and awk: Practical Examples
Real sed and awk commands for log parsing, config editing, and data extraction. Tested examples with GNU awk 5.x and sed 4.8 on RHEL 9 and Ubuntu 24.04.
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guide
Linux systemd Service File: How to Write One
Write a production-ready systemd service file from scratch. Real unit file examples, directives explained, hardening options, and common pitfalls covered.
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guide
Linux File System Types: ext4, xfs, btrfs Compared
ext4, xfs, and btrfs benchmarked and compared for real workloads. Pick the right Linux filesystem for databases, containers, and high-throughput storage.
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guide
Linux Boot Process Explained Step by Step
Trace the Linux boot process from BIOS/UEFI to login prompt. Real commands, kernel parameters, systemd targets, and troubleshooting for sysadmins.
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comparison
sudo vs su on Linux: What Is the Difference
sudo vs su compared for sysadmins: privilege escalation mechanics, audit trails, PAM integration, and when to use each in production Linux environments.
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guide
Linux Kernel Modules: Loading and Managing
Load, unload, inspect and manage Linux kernel modules with modprobe, insmod, lsmod and modinfo. Real commands, parameters, and production tips for sysadmins.
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guide
Linux chroot Guide: Jails for Sysadmins
Set up Linux chroot jails for service isolation, rescue ops, and build environments. Real commands, configs, and pitfalls from production use.
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