3rd party software
From Freeside
Contents
Databases
RADIUS (AAA) servers
Telephony Softswitches
- OpenSER OpenSER is now Kamilio and OpenSIPS. wtf
- FreeSwitch looks really promising
Control Panels
- DTC/GPLHost looks nice
also
Virtualization
- OpenVZ
- Linux-Vserver
- Xen
- KVM...
Network monitoring
"Classic" / "Old school" (but still maintained)
Nagios ecosystem
- Nagios itself
- Opsview
- Centreon
- Groundwork Open Source