According to this blog post by MacMiniVault.com, Apple is no longer including a Virtual Private Network (VPN) server. macOS Server Mojave has been gutted of nearly all the previous “Server” functionality, leaving only 3 things: Profile Manager, Open Directory, and Xsan.
Can someone suggest a secure reliable VPN server that currently runs on macOS Sierra that is likely to also run on macOS Mojave?
My goal is to allow my MacBook Pro, iPhone, iPad, and such make VPN connections directly from the Apple-provided built-in VPN client feature.
I do not want to install any VPN client app. Avoiding 3rd-party VPN layers/apps precludes use of any commercial VPN-as-a-Service provider. Every VPN service provider I have seen insists on using only their own proprietary client installer rather than using Apple’s built-in VPN client. Hence my desire to run a VPN server on a remote Mac mini attached to a fast Internet connection such as at a colo.
I would rather avoid having to install HomeBrew or any other extra Unix-app layering (which I've never really understood, and fear mucking up my macOS).
This Support bulletin from Apple, Prepare for changes to macOS Server, lists three alternatives for the VPN server feature being dropped from macOS Server edition:
I don’t know how to judge these, except that my understanding is that OpenVPN fails to meet my main criterion: Macs and iOS devices be able to connect using Apple’s built-in VPN client, with no need to install anything.