If you've ever looked at your server and wondered why it's using swap even though plenty of RAM is available, you're not alone. This is a common scenario on Linux systems, and it can impact performance if not addressed. Continue reading...
#commands
16 posts
20 Jul
6 Jul
Linux is a powerful and versatile operating system that can be used for a wide range of purposes. For many system administrators, the command line interface is the primary way to interact with the system. Continue reading...
22 Jun
This article is inspired by our LinuxCommunity.io forum discussion thread (thanks to users @tmick and @shybry747 for the feedback). Let's walk through what Podman is and how to use it as a Docker alternative on Linux. Continue reading...
The watch command runs any Linux command repeatedly at a set interval and displays the output full-screen, making it one of the quickest ways to monitor live system activity without writing a script. This guide covers all the key options with practical examples for real sysadmin use cases. Continue reading...
11 Jun
I’ll admit, I hesitated a bit before writing this post. The whole point of this linuxblog.io and linuxcommunity.io forum is to bring together like-minded Linux users and professionals so we can troubleshoot, share ideas, and learn from one another. Continue reading...
7 Jun
Every so often, something surfaces in the LinuxCommunity.io forums that deserves a wider audience. Generally it is a question, a solved problem, or a quick tip. Continue reading...
6 Jun
A practical guide to Linux user and group management using useradd, usermod, userdel, groupadd, gpasswd, and chage. Covers real-world examples, common mistakes, service accounts, and safe account removal. Continue reading...
1 Jun
Two network interfaces are better than one. With Linux network bonding (also known as NIC bonding or link aggregation), you can combine multiple NICs into a single logical interface, gaining either increased throughput, failover redundancy, or both. Continue reading...
24 May
A practical guide to nmap on Linux covering host discovery, port and service scanning, OS detection, NSE scripts, output formats, and real-world command combinations sysadmins actually use. Continue reading...
21 May
A practical guide to Linux log files: where they live, how to read and search them with tail, grep, and journalctl, how to manage log rotation, and a real-world troubleshooting workflow. Continue reading...
7 May
Learn how to write, manage, and troubleshoot systemd service unit files on Linux. From basic service definitions to hardening options, restart policies, timers, and real-world debugging techniques. Continue reading...
3 May
A practical guide to Linux environment variables: how to set, export, persist, and debug them correctly across shell sessions, user accounts, system-wide configs, and systemd services. Continue reading...
24 Apr
If the Linux desktop and applications on your thin and light laptop or low-end PC feel sluggish under a busy session, the usual suspects are slow storage R/W, not enough RAM, or occasionally a CPU bottleneck. But on machines with integrated graphics, there is a fourth bottleneck most people never check: VRAM. Continue reading...
22 Apr
A practical guide to Linux signals: how to use kill, pkill, and trap correctly to manage processes, reload configs, and write scripts that clean up gracefully instead of dying mid-operation. Continue reading...
21 Apr
A practical guide to Linux disk partitioning with fdisk, parted, and lsblk. Covers creating partition tables, formatting filesystems, mounting, and setting up persistent mounts via /etc/fstab. Continue reading...
20 Apr
Bash aliases turn long, repetitive commands into short custom shortcuts that load every time you open a terminal. Here's how to set them up, where to store them, and a practical set of aliases built for real sysadmin work. Continue reading...