Rootserver VS2-free from euserv.com
Info from euserv.com
The root server model "VS2-free" is based on the new container-based vServer platform from EUserv and offers hosting in a virtualized Linux environment with full root rights and all associated advantages of your own server.
The model "VS2-free" can be used free of charge in the basic version with IPv6 and is ideal for testing, as a development environment or as the basis for creating larger and growing systems.
good luck in testing your server