The first time you run it, you'll have to follow the assistant and answer a few questions to setup your VPN server. Next, run the executable installer script as shown. Log in to your server and download the installer script using the curl command-line tool, then make it executable using the chmod command as follows. Download the installer and run the script Your results may vary but you should be able to get quite a few users on a 512MB droplet acting as a VPN server before you encounter problems.” 1. Each user connected to this may then use 1-2mb more. “Openvpn does not use a ton of memory itself, somewhere around 70mb. I found this comment on DigitalOcean to be fairly accurate: Using Ubuntu 20.04, I installed OpenVPN on an inexpensive $3.50/mo Vultr server with 512 MB RAM, 1 vCore and 10 GB SSD. Our VPN Server software solution can be deployed on-premises using standard servers or virtual appliances, or on the cloud. OpenVPN provides flexible VPN solutions to secure your data communications, whether it's for Internet privacy, remote access for employees, securing IoT, or for networking Cloud data centers. Starting with the fundamental premise that complexity is the enemy of security, OpenVPN offers a cost-effective, lightweight alternative to other VPN technologies that is well-adapted for the SME and enterprise markets.

OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations, including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing, failover, and fine-grained access-controls.

Openvpn install ubuntu