Admin Magazine

Established in 2010, ADMIN Network & Security magazine serves as a vital resource for sysadmins seeking technical solutions to everyday challenges. Our in-depth articles cover a range of topics, including security, Cloud computing, DevOps, high-performance computing (HPC), and storage, all aimed at enhancing the skills of administrators with practical advice and insights.

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What to Know Before Moving into HPC » ADMIN Magazine

2 weeks ago | admin-magazine.com | Jeff Layton

The SC24 supercomputing conference really impressed upon me the level of excitement that people have around HPC when they are first introduced to it. The key moment for me was on the bus ride back to the hotel sitting next to a young person who was so impressed with what HPC had been doing to improve the world and where it was headed. They were very excited to get back to their employer and start jumping into HPC.
Core Linux Commands for HPC » ADMIN Magazine

1 month ago | admin-magazine.com | Jeff Layton

Lately, I’ve been thinking more about what’s happening in the world of HPC. The items that have risen to the top are the following:During SC24 I had a few very enthusiastic people ask me how to get started in HPC or how I got started in HPC. Other people, such as Glen Lockwood had similar experiences.
KISS – Adding a New User » ADMIN Magazine

Nov 13, 2024 | admin-magazine.com | Jeff Layton

KISS. Occam’s razor. Betty Crocker’s Cookbook. A little black dress. A handshake. Four gigabytes of RAM. These examples exemplify the power of basics and simplicity. The idea of simplicity popped into my brain a couple of weeks ago when I was talking with several people about how manuals don’t include instructions for simple, obvious tasks because they either assume you can figure it out on your own or that the execution of the tasks is common knowledge.
TUI Tools for Containers » ADMIN Magazine

Oct 15, 2024 | admin-magazine.com | Jeff Layton

In the last article about creating a container for a development environment with HPC Container Maker (HPCCM), I didn’t talk about how to install editors or integrated development environments (IDEs). From my experience, I had a couple of thoughts about editors in the container, but I didn’t include them in the article, so in this article, I want to talk about some of the tools that can be used.
Podman for Non-Root Docker » ADMIN Magazine

Aug 23, 2024 | admin-magazine.com | Jeff Layton

Podman is the best non-root Docker tool I’ve found. Let me show you why. After writing about the HPC Containers Survey, I started thinking more about the survey results and how I use containers. From the survey, I noticed that people:use Docker on their local machines quite a bit relative to other technologies, even though the systems they use run Singularity;use the Docker recipe more than Singularity; anduse DockerHub as a central repository.
Update on Containers in HPC » ADMIN Magazine

Jul 8, 2024 | admin-magazine.com | Jeff Layton

In this article, I review the results of the HPC Container Community Survey, which comes from the Containers Working Group (CWG), whose charter describes the members and mission as: “container enthusiasts that want to discuss the needs of the HPC community and how they can be integrated into existing or new Open Container Initiative (OCI) projects, or perhaps CNCF [Cloud Native Computing Foundation] projects.” The CWG is apparently part of the Open Containers Initiative (OCI) established...
Desktop Blades (of Glory) » ADMIN Magazine

May 7, 2024 | admin-magazine.com | Jeff Layton

A small club of people, of which I'm the president and a member, are interested in personal clusters you can have in your office, and even on your desktop. I've made several home clusters from various components, ranging from the small Cluster HAT, to a small Raspberry Pi cluster, to an eight-node x86 stack. In my previous home I had three 20A circuits installed for clusters, I really like great performance but with low power usage, so I can get four nodes on a normal 15 or 20A circuit.
Really Useful Linux Commands for HPC Admins » ADMIN Magazine

Apr 9, 2024 | admin-magazine.com | Jeff Layton

While managing Linux desktops, laptops, and HPC systems, I learn new commands and tools. As a result, my admin patterns change. In this article I present some commands I have started using more often and have incorporated into my regular routine. teeSome scripts, whether for administrative functions or as part of a computational pipeline, write to output files.
Monitoring Servers and Services " ADMIN Magazine

Apr 2, 2024 | admin-magazine.com | Ankur Kumar

Lead Image © Tatiana Venkova, 123RF.com What's your status (page)? By Businesses with modern IT infrastructures can keep track of internal and external servers and services with black box monitoring by Monitoror, Vigil, and Statping-ng. Keeping the lights on round the clock in a modern IT infrastructure is pretty complicated.
Write Your Own Admin Tools » ADMIN Magazine

Mar 5, 2024 | admin-magazine.com | Jeff Layton

If you’re just starting out as an admin, you tend to stick with existing Linux tools. After a while, you will find the need to modify or combine the tools to create something more useful. Admins write their own tools for specific tasks with languages such as Bash and Python. Beyond producing useful output, writing your own scripts gives you control over your tools, allowing you to extend them easily.