Hello, I'm running a Minecraft server on Lubuntu, and I want to improve security (like preventing DDoS attacks, connecting to the machine from external sources, etc).
I thought of putting the server on a virtual machine, though it didn't work, because I didn't know the internal IP of the machine to port forward it. I bridged the connection in VirtualBox like some tutorials say, but it didn't work either (trying to connect to the server via the physical machine's internal IP worked). In short, I couldn't port forward the virtual machine's IP.
Are there other ways to improve security (besides firewall)?
P.S. Is using services like "remote.it" safe? I used it some time ago. Oh, and are there other services to hide the IP?