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Sysadmin tools: Using rsync to manage backup, restore, and file synchronization

Rsync is a command-line tool for copying files and directories between local and remote systems that should be in every Linux sysadmin's toolbox.

Vim: Basic and intermediate commands

Here are some of my most frequently used commands in the Vim text editor.

When backups fail: A cautionary sysadmin tale

When anything fails, fingers start to point. Here's one story of failed backups and inherited responsibility.

Setting up multi-factor authentication on Linux systems

Pluggable Authentication Modules allow Linux to work with Google Authenticator and other OTP tools to add two-factor security to your system.

Moving from docker-compose to Podman pods

It feels like forever since I wrote my Red Hat Enterprise Linux 8 Beta intro to Podman. In fact, it's been quite a while, and a lot has happened since then. Follow the migration of a virtual machine from Docker to Podman

My top 10 terminal shortcuts for Linux

Linux is so flexible that you often can achieve the same results in several different ways. One of the joys we all share is our daily interaction with Linux terminals and the command line. Terminals and command lines play a significant role in almost every Linux admin’s life. There are many advantages to using terminal shortcuts. Here are 10 great ones, plus a bonus tip.

Choosing between Ansible's copy and template modules

When it comes to transferring files to a remote system with Ansible, the copy and template modules are great tools for the job. Ansible's copy and template modules are a great way to get started with automation.

The podman play kube command now supports deployments

One of the most exciting features we've added to Podman is support for interacting with Kubernetes objects. With the podman generate kube command, Podman can export your existing containers into Kubernetes Pod YAML for import into an OpenShift or Kubernetes cluster. Work back and forth between Podman and Kubernetes

PAM by example: Use authconfig to modify PAM

Learn more about PAM configuration files in Linux by exploring changes made by the authconfig utility.

Learning NFS through server and client configuration

I have used NFS in a limited capacity for years. I was familiar with the concept and had been accessing NFS shares, however, I had never actually configured one. Chances are, I am not alone in this. I thought I would learn how to set it all up and even bring you all along with me.

Add a repo and install a package the Ansible way

How to add package repositories and install packages on many hosts by using Ansible.

An introduction to crun, a fast and low-memory footprint container runtime

Check out crun, an OCI-compliant alternative to runc for Linux container runtime.

The sysadmins journey: A series of unexpected events

Dealing with frustration this System Administrator Appreciation Day? Check out these solutions to common challenges, from storage to configuration management to many others.

Automate virtual machine deployment with Ansible: Design

The first of three articles to help you automate VM creation on Red Hat Virtualization by using Ansible. This article focuses on goals, design, and assumptions.

Improved systemd integration with Podman 2.0

Podman 2.0 takes systemd integration further and auto-updates help to make managing containers even more straightforward.

Sysadmin careers: Seven ways to market your sysadmin skills

Good technical recruiters have known for decades that unless you market your skills, even within your current company, your career will stagnate. Your sysadmin skills can only get you so far without some clever skills marketing. Here's how to do it.

Anatomy of a Linux Pluggable Authentication Modules (PAM) configuration file

Ever wonder how Pluggable Application Modules are configured in Linux? Learn the basics here.

OpenShift tip: Resolve a terminating state issue

Learning to troubleshoot is an important part of making hybrid cloud operations successful.

Red Hat Insights: compliance

Take a look at how Red Hat Insights keeps your system running within user-defined parameters.

Which programming languages are useful for sysadmins?

Do you have a favorite or "go to" language for your sysadmin work?

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