The skin isn’t an organ. Meddl leude

/s

I personally prefer using public key encryption over passwords for ssh authentication. There’s no need to rely on third-party VPN providers (like ZeroTier or Tailscale) or hosting your own “vpn server” for that purpose as ssh trafic is already encrypted.

The drawback of following the route you suggested is that you have to operate yet another service that could be misconfigured, potentially causing you to lose access to your server. If you’re keen on further restricting access, consider whitelisting your static(!) IP address, the IP address ranges associated with your provider or the ranges assigned to your country for an additional layer of security.

Core performance boost is like inbuilt overclocking. When you disable it, you’ll get normal performance, and the temperature should be lower as well.

I’ve compiled a list of resources for someone else just getting started:

• https://github.com/awesome-selfhosted/awesome-selfhosted
• https://github.com/awesome-foss/awesome-sysadmin
• https://www.reddit.com/r/selfhosted
• https://www.reddit.com/r/homelab
• https://selfhosted.show/
• https://www.youtube.com/@RaspberryPiCloud <- german
• https://www.youtube.com/@TechnoTim
• https://www.youtube.com/@AndreasSpiess
• https://www.youtube.com/@bitlunislab
• https://www.youtube.com/@Level1Linux
• https://www.youtube.com/@LearnLinuxTV
• https://www.youtube.com/@WillieHowe
• https://www.youtube.com/@LAWRENCESYSTEMS
• https://www.youtube.com/@CrosstalkSolutions

I’ve been there with a bad power supply. The support team sent not just one, but two power supplies without asking too many questions. I hope it’ll be smoother for you.