Admin tricks, Linux command-line tips, Python, agile, DevOps, and more top reads

Iptables tricks, Linux command-line tips, Python, agile, DevOps, and more top reads

We round up our biggest hits from the past week.

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Tricks for sysadmins, Linux command-line tips, and a Python programming article were our top 3 posts last week. Do you have tricks, tips, or programming wisdom to share with readers? Send us your story ideas!

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Top 10 (October 1-7)

Here are our most popular articles from the past week:

Command line prompt

Iptables provides powerful capabilities to control traffic coming in and out of your system.

Immutability can help us better understand our code. Here's how to achieve it without sacrificing performance.
open source button on keyboard

Learn some of the Linux 'ls' command's most useful variations.
a big flag flying in a sea of other flags, teamwork

Forget everything you've ever learned about agile development.

Use the SSH and SFTP protocols to access other devices, efficiently and securely transfer files, and more.
metrics and data shown on a computer screen

How's your DevOps initiative really going? Find out with open source tools.
4 open source invoicing tools for small businesses

Manage your billing and get paid with easy-to-use, web-based invoicing software.

Kuryr-Kubernetes provides networking for Kubernetes pods by using OpenStack Neutron and Octavia.
14 common network ports you should know

Here are some of the most often-encountered network ports and their associated services.

Alicia Gibb talks about the value of open hardware and how you can get involved, too.

About the author

Rikki Endsley - Rikki Endsley is the Developer Program managing editor at Red Hat, and a former community architect and editor for In the past, she worked as the community evangelist on the Open Source and Standards (OSAS) team at Red Hat; a freelance tech journalist; community manager for the USENIX Association; associate publisher of Linux Pro Magazine, ADMIN, and Ubuntu User; and as the managing editor of Sys Admin magazine and...