10 great sysadmin articles you might have missed from April 2021

The best of April 2021 from Enable Sysadmin. Thank you to our contributors and to our readers.

Posted: May 4, 2021 by Tyler Carrigan (Editorial Team, Red Hat)

April 2021 Roundup — Image by msandersmusic from Pixabay

April 2021 was a great month for Enable Sysadmin. We published 30 articles and received 549,684 pageviews from over 370k unique visitors. Today, we are looking back at our top ten articles to give readers a chance to catch up on any of the great content they may have missed. In this list, you will see various topics covered and we are confident that some, if not all will be of interest to you.

If these articles leave you feeling inspired, or if you would like to be on next month's list, we would love to hear from you. Send in your ideas to the team at enable-sysadmin@redhat.com.

How to use Ansible to send an email using Gmail

Here's a brief introductory article that describes how to configure Gmail with Ansible.

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.

5 obscure but useful Linux commands for sysadmins

A lighthearted look at five commands that just might help you today.

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.

6 tcpdump network traffic filter options

The first six of eighteen common tcpdump options that you should use for network troubleshooting and analysis.

An introduction to firewalld rules and scenarios

The firewall is a critical security component of your Linux system. See how to filter traffic with zones and rules.

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.

Use Ansible to edit your sshd_config file

Exploring the new Podman secret command

Use the new podman secret command to secure sensitive data when working with containers.

6 options for tcpdump you need to know

Six more tcpdump command options to simplify and filter your packet captures.

Setting up UEFI HTTP boot with libvirt

Overcoming the limitations of TFTP when imaging by switching to UEFI and HTTP management

Topics: Linux Linux administration Automation

Tyler Carrigan

Tyler is the Sr. Community Manager at Enable Sysadmin, a submarine veteran, and an all-round tech enthusiast! He was first introduced to Red Hat in 2012 by way of a Red Hat Enterprise Linux-based combat system inside the USS Georgia Missile Control Center. More about me