In Chronological Order
R. Leigh Hennig
Note: This meeting, sponsored by the Wolverhampton (UK) LUG, will open at 14:40 EDT (19:30 GMT); the formal presentation will start ~ 15:30&EDT (20:30 GMT).
With the EOL of CentOS 8 coming this year and transition to a rolling release model, Greg Kurtzer is initiating the Rocky Linux Project, a free, community-run drop-in replacement for CentOS and RHEL. Greg is original founder of the CentOS.
After a whirlwind start of 3 months of infrastructure building, the first release candidate of Rocky Linux is expected by 31 March 2021; the official release is expected in mid-2021.
Greg and Leigh will speak and answer questions on:
- The formation and status of Rocky Linux,
- Address questions that sysadmins might have about migrating a CentOS system to Rocky Linux, and,
- How users can contribute to the success of the Project.
Reverse Engineering Example
Migrate & Re-engineer Closed Source Solutions
Derived from closed source Minitouner, Longmynd is an open source an application that "talks" via USB to a DVB-S/S2 demodulator. It is mainly used by the Amateur Television Community to receive Transmissions of video pictures.
The Longmynd re-write is a transmitter solution to run alongside a Portsdown,a Raspberry Pi based Transmitter solution for DVB-S/S2 pictures. This allows for both TX and RX of video pictures on one, Raspberry Pi box. Hence, the Longmynd Receiver was born. The biggest challenge was that the specification and documentation of the DVB-S/S2 hardware (the Serrit NIM) was only available on an NDA basis and the USB interface between the hardware and the Windows PC (an FTDI board) contained custom code.
The presentation will tell the tale of some reverse engineering, trial and error, lucky guesses and hours of analysis of many GBytes of data which finally led to the fully functional, Longmynd Receiver on the RPI. The implementation has been used as the software basis for three new receivers, is fully Open Source (available on GitHUB), has been widely adopted in the ATV community. Longmynd is a two, significant, awards for innovation in the Amateur radio world.
Getting started with Traefik
Container Edge Router / Reverse Proxy
Containers enable quick installation of new applications and scaling of existing apps. Then comes exposing them to users, load balancing across replicas — even at home. Reverse proxies are a great at exposing services, terminating SSL, and modify traffic during a request. Traefik is a popular reverse proxy for exposing containers because of its flexibility, as a load balancers, and its but ability to with Docker, Kubernetes, Let's Encrypt, and more.
We will demonstrate the whys and hows of running Traefik at home and in an enterprise. To follow along with demos:
- Pre-install Docker, including docker-compose.
- Expose port 443 to the internet too to use Let's Encrypt.
Traefik works on ARM so it works well on a Raspberry Pi. Knowledge of containers will help, but isn't necessary — we'll review the important stuff as we go.
Michael and Phil are
Docker Captains from Virginia Tech.
CentOS Is Not Dead
— The rumors of CentOS' death are wildly exaggerated —
On December 8, 2020, Red Hat announced a big change for the CentOS project. Peter Larsen from Red Hat will talk about the changes and how it brings CentOS ("Stream") than CentOS Linux is today. He will discuss how Fedora, CentOS and RHEL get software, updates and how the process works. The process of converting CentOS Linux to CentOS Stream will also be described.