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Overcoming the limitations of TFTP when imaging by switching to UEFI and HTTP management
7 signs you survived the best era of IT
Keep score to see how many of these technologies you remember and discover whether you're old, er - experienced.
5 obscure but useful Linux commands for sysadmins
A lighthearted look at five commands that just might help you today.
Creating a backup of data stored in a Linux virtual machine
Learn how one sysadmin backs up data from one virtual machine to another in a different geographic zone.
How to use OpenSSL and the Internet PKI on Linux systems
A high-level overview of TLS/SSL and the OpenSSL tool, creating private keys and CSRs, and an introduction to the Internet PKI.
8 steps to developing an Ansible role in Linux
In this article, an existing Ansible playbook is used to deploy Vim and convert it to a role adding flexibility and reusability.
How to manage Linux passwords with the pass command
The pass command empowers you to take full control of your password management tasks on Linux.
5 tips to help you prepare for technical certification exams
Five ways you can better prepare yourself for hands-on, technical certification exams.
Exploring the differences between sudo and su commands in Linux
If you're confused about what su and sudo commands do for you, this brief guide will help you sort them out.
6 OpenSSL command options that every sysadmin should know
Look beyond generating certificate signing requests and see how OpenSSL commands can display practical information about certificates.
Quick tips for the OpenShift oc client
If you've played around with Kubernetes, you are aware of the rapid evolution of the most widely used container orchestration platform. Red Hat OpenShift is an enterprise-ready application platform built on Kubernetes and ready for production environments. Quick tips for the OpenShift oc client
A sysadmin's favorite Linux history command line hack
When typing is necessary, it's better to do it efficiently.
Getting into the weeds with Buildah: The buildah unshare command
Using buildah unshare to script the management of container images in rootless mode.
How to identify potentially vulnerable network daemons on your Linux systems
Identifying vulnerable network daemons for remediation and how attackers find vulnerable resources.
Introduction to Linux Bash programming: 5 `for` loop tips
Bash for loops aren't life-changing for everyone, but they certainly can enhance your productivity.
Getting started with PostgreSQL on Linux
How does PostgreSQL support science, research, industry, GIS, and web tech? Find out how to get started with this powerful database service.
Bash scripting: How to write data to text files
Writing data to text files in Linux is easy to do. Learn the art of redirection.
What commands are missing from your bashrc file?
Do you have these three skills to help you be a successful sysadmin? Check yourself against this list.
Bash scripting: How to read data from text files
Here's how to extract data from a text file such as reading in a list of servers to test connectivity to them.
NVMe vs M.2: What's the difference?
A quick look at two common terms kicked around in modern drive storage and what you need to know.