Ubuntu 20.04 LTS Server Edition
Lessons Learned

Updated 1 August 2021

In this web site, I will document all the lessons I learned over the past few months while constructing servers using Ubuntu 20.04 LTS server edition. The server edition, as distributed in the ISO file, installs a version of the Linux operating system without Gnome.

This is a work in progress, as I go through my notes from the server building and tuning process.

• Why Ubuntu?
• Core Server Installation
• SSDs and TRIM: Why Ubuntu already extends the life off SSD devices.
• Replacement for UFW for an edge server.
• Rescue Tips: When Things Go Wrong
• Checking a server for open ports via netstat(80) and nmap(1)
• Creating an OpenVPN server
• Bringing up IPv6 connectivity on AT&T fiber Internet
• Running a memory test on a computer, using memtest86. This is to verify that the DRAM is functional
• Why I stopped fighting systemd I resisted learning about systemd ever since Red Hat released it in its Enterprise Linux. I found ways to better understand the service, and to live with it in my network. Mostly. (I still use NTP in my LAN services server.)
• My little server farm.

And other content as pages become available.

Comments, suggestions, and error reports are welcome.
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© 2021 Stephen Satchell, Reno NV