Linux sysadmin
113 articles
Page 3 of 6
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Best Terminal Emulator for Linux in 2025: I Tested 5 (One Changed My Workflow)
I tested the top Linux terminal emulators in 2025 — Kitty, Alacritty, WezTerm, Ghostty, and GNOME Terminal. Here is which one actually belongs in your workflow.
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How to Create a Systemd Service in Linux (Step-by-Step)
Learn how to create a custom systemd service in Linux with step-by-step examples. Write unit files, enable auto-start, and debug like a pro.
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How to Use cat Command in Linux: Read, Combine, and Create Files
Learn the Linux cat command with real examples: view files, concatenate, create with heredoc, and avoid the useless use of cat anti-pattern.
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How to Use firewalld in Linux: Manage Zones and Rules the Right Way
Learn how to use firewalld in Linux to manage zones, allow services, open ports, and write rich rules. The complete guide for RHEL, Rocky, and Fedora.
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How to Add a User in Linux: The Command Every Admin Needs
Add a user in Linux the right way. This guide covers useradd, adduser, passwd, usermod, userdel, and granting sudo access with real examples.
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Hetzner Review 2025: Is the Best-Value Linux VPS Worth the Hype?
Honest Hetzner review 2025: pricing, performance benchmarks, pros & cons, and who it's really for. A Linux sysadmin's take after years of real-world use.
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How to Use sysctl in Linux: Tune Kernel Parameters Like a Pro
Learn how to use sysctl in Linux to read, modify, and persist kernel parameters. Covers vm.swappiness, network tuning, security hardening, and /etc/sysctl.conf.
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How to Use diff Command in Linux: Compare Files and Configs
Learn how to use the Linux diff command to compare files and configs. Covers output reading, key flags, directory comparison, and the diff+patch workflow.
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How to Use grep Command in Linux: The Text Search Tool Every Admin Needs
Master the grep command in Linux with practical examples. Learn essential flags, regex patterns, recursive search, and real-world sysadmin use cases.
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How to Use Netcat (nc) Command in Linux: The Network Swiss Army Knife Every Admin Needs
Master the netcat (nc) command in Linux with real examples. Learn port scanning, file transfers, connection testing, and banner grabbing every sysadmin needs.
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How to Add Swap Space in Linux: The Complete Guide Every Admin Needs
Learn how to add swap space in Linux using a swap file or swap partition. Step-by-step commands, size recommendations, and swappiness tuning included.
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How to Use logrotate in Linux: Prevent Disk-Full Disasters with Automated Log Management
Learn how to use logrotate in Linux to automate log rotation, prevent disk space disasters, and keep your servers running smoothly. Step-by-step guide with examples.
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What Are Inodes in Linux: The Filesystem Concept Every Admin Needs to Understand
Learn what inodes are in Linux, why they matter, and how to fix the confusing no space left on device error when df shows plenty of free disk…
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How to Use SCP Command in Linux: The Secure File Transfer Tool Every Admin Needs
Learn how to use the SCP command in Linux to securely transfer files between systems. Includes syntax, real-world examples, troubleshooting tips, and security best practices.
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How to Use LVM in Linux: The Storage Management Tool Every Admin Needs
Learn how to use LVM in Linux to manage storage flexibly. Complete guide covering physical volumes, volume groups, logical volumes, and resizing operations.
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How to Use modprobe Command in Linux: The Kernel Module Tool Every Admin Needs
Learn how to use modprobe to load and manage Linux kernel modules. Complete guide with practical examples, common errors, and best practices for system administrators.
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How to Use nmap Command in Linux: The Network Scanner Every Admin Needs
Learn how to use nmap in Linux for network scanning, security audits, and port discovery. Complete guide with examples, best practices, and legal considerations.
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How to Use netstat Command in Linux: The Legacy Tool You Still Need to Know
Learn how to use netstat command in Linux to monitor network connections, check listening ports, and troubleshoot network issues. Includes modern alternatives.
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How to Troubleshoot Network Issues in Linux: A Systematic Approach
Learn how to troubleshoot network issues in Linux with a systematic workflow. From DNS failures to packet loss, master the tools every admin needs.
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How to Set Up Automatic Backups in Linux: The Complete Guide
Learn how to set up automatic backups in Linux using rsync, cron, and modern tools like Borg. Prevent data loss with this comprehensive automation guide.
Related topics
- Linux commands 62
- Command line 48
- Almalinux 21
- Linux networking 20
- Linux troubleshooting 20
- Linux security 17
- Shell scripting 16
- Bash 14
- Open source backup 13
- Ubuntu 12
- Homelab 11
- Systemd 10
