I’m looking to add more services to my business, but its a tough thing to figure out…how much to charge someone, that is. You have to look at the resources of the server and factor in not only how much you expect your userbase to use, but also the system itself.
For example, I’ll have a KVM with 256 MB of RAM. You should already figure the KVM OS is going to use at least 100 MB of that. That doesn’t offer a lot of leeway. Luckily, OpenVPN doesn’t demand of resources so if you figure a client will need 32 MB for OpenVPN bare minimum, and the system will use 56 MB (minimal installs are awesome!), we’re looking at about 6 clients per KVM (200/32 = 6.25 = ~6). If you charge each client $5/month you could very well have that KVM paid for and a good amount of profit as well.