Install Rocket.Chat on Ubuntu 20.04 via Docker Compose
This post is a companion to our video tutorial on installing Rocket.Chat 4.x on an Ubuntu 20.04 server via Docker Compose.
We start with a Docker Compose-configured server. You can also see our video tutorials on how to create one: complete, or starting from a DigitalOcean 'snapshot'.
Installing BigBlueButton on an OERu Docker Server
This tutorial was developed for the Samoan Knowledge Society Initiative, in which the OER Foundation is very pleased to be involved. (Update 2022-02-10: we have also created a video tutorial based on this written tutorial)
Building a Course Site with WordPress on Ubuntu 20.04 using Docker Compose
The OERu offers accredited tertiary (University level) courses to learners anywhere on the Internet, whether they are using desktop computers or mobile devices.
Configuring a Linux server to send email via the Postfix SMTP server using an external authenticating SMTP host
Just about any and every server needs to be able to send email - whether it's end-user-email, like password recovery services for a website to emails to system administrators reporting on the status of system backups and errors. The problem is that it's non trivial (understatement) to set up a mail server properly.
Protecting your users with Let's Encrypt SSL Certs
SkFor any website that requires anyone (users or even just a few admins) to transfer secrets to and from it, you want to ensure the data is end-to-end encrypted. Today various browsers (like Firefox) give warnings when you're sending secret data (like passwords) "in the clear", namely unencrypted.