CloudVPN 是一个 VPN 的解决方案，It can create secured networks with special or weird topologies. All nodes of the network are equal and can connect in any way, so it's very easy to create connection schemes with (for example) clustered servers, decentralized servers, complete topologies for better throughput, ring topologies for failover, long-line for passing through many routes, or tree topology for optimizing inter-server bandwidth needs. It is very easy to get working.
主页：http://www.e-x-a.org/?view=cloudvpn
来自:开源中国社区
