The Linux TOP Command

The Linux TOP command provides valuable monitoring and troubleshooting information. However, there is a lot of information in a very condensed format and it can be tricky to sort through what is important and what isn't. Click to learn more about TOP.

QuickPost: What version of Ubuntu am I running?

Want to verify which version of Ubuntu you're running from the command line? There are a few ways, but the best way is the lsb_release command. Click the link to see how.

DNS: How it Works

DNS is a critical service that everyone uses every time they surf the web. Many people don't understand how it works; especially when migrating a website or service to a new host. Click to read a quick overview of how DNS works.

NGINX, ALPN and HTTP/2 on CentOS7

By now we've all heard about the fancy new lightning fast HTTP/2 protocol, right? Fortunately, the latest versions of NGINX support HTTP/2. Unfortunately, most distributions are still stuck on OpenSSL < 1.0.2

About Me

I’m Luke Arntz. I’ve been working at service providers since 2001. I’m hands on with the wide range of technologies that make providing managed services possible such as Linux and Windows Server, virtualization, networking, SQL and almost everything in between. Reading and writing are passionate hobbies for me also. Twenty years ago I would have expected to write much more than I have over the years, and starting this website is the beginning of my quest to find my writing voice and fix that.