Free, open source Computer Aided Dispatch for volunteer fire departments, ARES/RACES, CERT teams, EMS, search & rescue, and campus security. 30+ years of real-world use. Zero cost. Self-hosted.
...The Administrator is able to configure the server through a web portal on the same HTTPS port.
* Use as a typical VPN solution to replace IPSec type access for a more granular security policy
* Use behind a fire-walled WLAN as a BYOD gateway
* Use fine grained access to manage who has access to what resource
* Keep your network and business safe by denying complete remote access to any user account
* Support for Mac and Windows clients