500: Server error | Ubuntu
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Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things.

4 distinguishing features when installing on Ubuntu: 1.) It works on the smallest tier virtual machines on every public cloud; 2.) 100% reliable fax over IP extensions supported out of the box; 3.) fail2ban enabled with customizable ignoreip configurations; 4.) also includes long running database and disk cleanup crontab entries to clear call recordings (if enabled), CDR and CEL tables, and stale voicemail recordings.