Robust VPN solution among VPSes
as many of you I have many VPSes hosted by various providers. My plan is to get unified VPN among those VPSes.
I thought about configuring this, using softether or openvpn. But the biggest issue in my thoughts was that if the VPN server (which would be one of the VPSes) goes down, the whole VPN will stop working. Is there more robust solution for achieving this? Something like peer-to-peer adhoc VPN?
Thanks for advices and tips.