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A point to note - I’m running OpenVPN on a Ubuntu droplet, and I’ve discovered that other droplets cannot route directly to VPN clients using your OpenVPN droplet’s Private IP as a gateway - DO has security in place preventing your Private IP from reaching anything apart from other Private IPs. You would need to have an additional VPN connection from your other servers into your VPN server, and allow client-to-client communication if this is a requirement.
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