Managing Backup Files
Plesk Control Panel

HTMLy is an open source Databaseless Blogging Platform or Flat-File Blog prioritizes simplicity and speed written in PHP. HTMLy can be referred to as Flat-File CMS either since it will also manage your content.

Gyroscope is an open source PHP framework and a code template system for building web backend systems.

Monstra is a fast and small content management system written in PHP! Monstra is the best CMS to manage a small-business website.

qooxdoo is a universal JavaScript framework with a coherent set of individual components and a powerful toolchain.

Python Hosting on Linux Servers

Cascade Framework is a free CSS framework for creating websites and web apps.

Apache Roller is a Java-based Open Source "full-featured, Multi-blog, Multi-user, and group-blog server suitable for blog sites large and small".

Java Hosting packages on Linux servers.

XWiki is a free wiki software platform written in Java with a design emphasis on extensibility.

JSP Hosting on Linux Servers.

Adult Java Hosting packages on Linux Servers.

SmartClient is set of mobile and cross-browser HTML5 UI components combined with a Java-based Ajax framework, created by Isomorphic Software to build business web applications.

dotCMS is an open source content management system (CMS) written in Java for managing content and content driven sites and applications.

eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform written in Java.

OpenKM is a Free/Libre document management system that provides a web interface for managing arbitrary files.

Ametys is a free and open source content management system (CMS) written in Java.