--- title: "#linuxadministrator articles | Hashnode" description: "Explore 36 articles tagged #linuxadministrator on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/linuxadministrator" --- Tag # #linuxadministrator 36 posts · 0 followers [Sagar Thosar](https://hashnode.com/@sagarthosar) · [Jun 14](https://hashnode.com/posts/to-the-people-nobody-notices-until-something-breaks/6a2edcd4c457eb4da57b02ec) ### [To the People Nobody Notices Until Something Breaks](https://unscriptedthoughts.hashnode.dev/to-the-people-nobody-notices-until-something-breaks?utm_source=hashnode&utm_medium=feed) A heartfelt tribute to DBAs, support engineers, sysadmins, and network teams whose work often goes unnoticed until something breaks. 3 min read · [unscriptedthoughts.hashnode.dev](https://unscriptedthoughts.hashnode.dev/to-the-people-nobody-notices-until-something-breaks?utm_source=hashnode&utm_medium=feed) [Sayantan Manna](https://hashnode.com/@stevesayantan) · [Apr 12](https://hashnode.com/posts/a-practical-guide-to-rpm-packaging/69dbfc15aadf1107e228176f) ### [From Code to Clean Uninstall: A Practical Guide to RPM Packaging with a Java HTTP Server](https://devops-bites.hashnode.dev/a-practical-guide-to-rpm-packaging?utm_source=hashnode&utm_medium=feed) Learn RPM packaging from the ground up by building, installing, upgrading, and uninstalling a Java application. This beginner-friendly guide covers RPM SPEC files, directives, macros, systemd integration, package lifecycle management, upgrades, and best practices with practical examples. 20 min read · [devops-bites.hashnode.dev](https://devops-bites.hashnode.dev/a-practical-guide-to-rpm-packaging?utm_source=hashnode&utm_medium=feed) [Abdul Ghafoor](https://hashnode.com/@ghafoor4321) · [Feb 15](https://hashnode.com/posts/today-i-learned-some-seriously-practical-linux-admin-skills/699203661a71a369d6d27731) ### [Today I learned some seriously practical Linux admin skills](https://ghafoor4321.hashnode.dev/today-i-learned-some-seriously-practical-linux-admin-skills?utm_source=hashnode&utm_medium=feed) Today, I completed the Source Code Installation module and walked through the full process of building and installing from source with more confidence. 1 min read · [ghafoor4321.hashnode.dev](https://ghafoor4321.hashnode.dev/today-i-learned-some-seriously-practical-linux-admin-skills?utm_source=hashnode&utm_medium=feed) [Tathagat Gaikwad](https://hashnode.com/@tathagatgaikwadt22) · [Sep 8, 2025](https://hashnode.com/posts/how-to-troubleshoot-high-cpu-usage-in-linux-a-complete-guide/68be5ec38ae06832ad8585c1) ### [🐧 How to Troubleshoot High CPU Usage in Linux: A Complete Guide](https://cloudenthusiastic.hashnode.dev/how-to-troubleshoot-high-cpu-usage-in-linux-a-complete-guide?utm_source=hashnode&utm_medium=feed) High CPU usage is one of the most common issues faced by Linux administrators, DevOps engineers, and SREs. But here’s the catch: high CPU usage isn’t always bad. Sometimes, it simply means your CPU is doing its job efficiently. Other times, it’s a si... 3 min read · [cloudenthusiastic.hashnode.dev](https://cloudenthusiastic.hashnode.dev/how-to-troubleshoot-high-cpu-usage-in-linux-a-complete-guide?utm_source=hashnode&utm_medium=feed) [Pradnya Sutar](https://hashnode.com/@pradnyas) · [Jul 14, 2025](https://hashnode.com/posts/what-i-learned-from-performing-real-world-service-migrations-without-downtime/68752bbbebbf45389c1941a0) ### [What I Learned from Performing Real-World Service Migrations (Without Downtime)](https://migrationofdata.hashnode.dev/what-i-learned-from-performing-real-world-service-migrations-without-downtime?utm_source=hashnode&utm_medium=feed) As a Linux System Administrator, I’ve recently been learning how to migrate client websites and email services from one server to another — with zero downtime. Unlike theory-based training, working with real client data taught me how small things (li... 3 min read · [migrationofdata.hashnode.dev](https://migrationofdata.hashnode.dev/what-i-learned-from-performing-real-world-service-migrations-without-downtime?utm_source=hashnode&utm_medium=feed) [zia kayani](https://hashnode.com/@zia-kayani) · [Mar 11, 2025](https://hashnode.com/posts/linux-level-1-and-bash-scripting/67d045c14a3e5a489b7355a4) ### [Linux level 1 and bash scripting](https://ziakayani.hashnode.dev/linux-level-1-and-bash-scripting?utm_source=hashnode&utm_medium=feed) In our previous article, we explored the basics of Linux, covering fundamental commands and file system navigation. Now, it’s time to take our Linux journey a step further. This article will focus on intermediate Linux commands means shift to the lev... 11 min read · [ziakayani.hashnode.dev](https://ziakayani.hashnode.dev/linux-level-1-and-bash-scripting?utm_source=hashnode&utm_medium=feed) [charlotte](https://hashnode.com/@charlotte437) · [Feb 22, 2025](https://hashnode.com/posts/resolving-the-matter-configuring-dns-with-system/67b960c36cc7474f28441dd9) ### [Resolving the Matter: Configuring DNS with system](https://ukfinpaydigest.hashnode.dev/resolving-the-matter-configuring-dns-with-system?utm_source=hashnode&utm_medium=feed) A Guide to Managing DNS on Linux with systemd-resolved 1 min read · [ukfinpaydigest.hashnode.dev](https://ukfinpaydigest.hashnode.dev/resolving-the-matter-configuring-dns-with-system?utm_source=hashnode&utm_medium=feed) [Shubham Salunke](https://hashnode.com/@shubhamsalunke) · [Feb 15, 2025](https://hashnode.com/posts/week-2-linux-hands-on/67b0a8660ab6920f7343a9cc) ### [WEEK 2 Linux Hands-On](https://first-week-of-90daysdevops-challenge.hashnode.dev/week-2-linux-hands-on?utm_source=hashnode&utm_medium=feed) Task 1 : User & Group Management To create a user use command —> sudo useradd To create a group use command —> sudo groupadd To add user in a group use command —> sudo usermod -aG Set a password an... 1 min read · [first-week-of-90daysdevops-challenge.hashnode.dev](https://first-week-of-90daysdevops-challenge.hashnode.dev/week-2-linux-hands-on?utm_source=hashnode&utm_medium=feed) [Hardik T](https://hashnode.com/@skillhardik) · [Jan 19, 2025](https://hashnode.com/posts/introduction-to-linux-start-your-learning-journey-today/678cd4e1dd7fce585fee77e6) ### [Introduction to Linux: Start Your Learning Journey Today](https://codehardik.hashnode.dev/introduction-to-linux-start-your-learning-journey-today?utm_source=hashnode&utm_medium=feed) Learn Linux from basics to advanced with a practical approach. Discover setup options on Google Cloud and configure your Linux virtual machine today 3 min read · [codehardik.hashnode.dev](https://codehardik.hashnode.dev/introduction-to-linux-start-your-learning-journey-today?utm_source=hashnode&utm_medium=feed) [Muhammad Irfan](https://hashnode.com/@irfanmustafvi) · [Nov 15, 2024](https://hashnode.com/posts/mastering-filesystem-management-in-rhel/673728c1cf445e370b76f304) ### [Mastering Filesystem Management in RHEL](https://irfanmustafvi.hashnode.dev/mastering-filesystem-management-in-rhel?utm_source=hashnode&utm_medium=feed) Explore advanced filesystem management in RHEL, mastering VFAT, EXT4, and XFS for optimized enterprise storage solutions and enhanced data integrity 2 min read · [irfanmustafvi.hashnode.dev](https://irfanmustafvi.hashnode.dev/mastering-filesystem-management-in-rhel?utm_source=hashnode&utm_medium=feed)