A free course management system (CMS) to create online learning sites
The Free & Popular FLARUM Web Software in a Complete Virtual Machine
Unified Communications Server
phpBB is the world's leading open source discussion forum software.
A reliable, secure & extensible PHP blog | Not mainstream since 2002
file explorer and picture gallery — web-based, easy-to-use and free
Simple web interface for Postfix domains, accounts, aliases
An administration web interface for Mumble VoIP servers in PHP
Synology DSM installable package for Baïkal CalDAV & CardDAV server
Russian Discuz русский DiscuzX! X3.2
Business webmail modular application with mobile client
phpBB download manager, mainly aimed at MOD authors
Discuz - мощнейший движок форума
Discuz!X3.1 - русская локализация.
PHP Flatfile Message Board
Discuz!X3 - русская локализация.