32-bit GNU/Linux computer connected to the Internet=dangerous? . Less helpful or informative video: https://iv.ggtyler.dev/watch?v=t7IK-2Cace8 ("Network Security Tools to stop hackers") . More helpful/informative: https://iv.ggtyler.dev/watch?v=zao2CUAP3dU ("I Exposed a Windows 2000 Machine to the Internet... Here’s What Happened") . (Try not to use PHP; see the "set charset to remote code execution" thing.)