Django is one of the easiest frameworks to deploy. Combined with Nginx and Gunicorn, you can easily run a high performance Django deployment in no time. Learn how to set all this up in a few minutes.
GitLab is an open source alternative for GitHub which is self-hosted, learn how to install it with this quick tutorial!
Typically, database systems are configured in master-slave replication when there is a redundancy requirement. Galera allows you to run a multi-master redundant database system easily
Learn how to get your own private branch exchange (PBX) hosted on the cloud within a few minutes, managed easily using FreePBX.
Varnish is one of the fastest HTTP accelerators which can improve your website performance significantly. Learn how to install it with this quick 2 minute tutorial.