Set up Luna Multiplayer on Ubuntu Server 20.04+

setup.sh

# GCP gives you $300 in free credits for a few months. Use it to host Luna Server!
wget https://github.com/LunaMultiplayer/LunaMultiplayer/releases/download/0.29.0/LunaMultiplayer-Client-Release.zip
unzip LunaMultiplayer-Client-Release.zip

wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb

sudo apt-get update
sudo apt-get install -y dotnet-sdk-5.0

dotnet --version &&

unzip LunaMultiplayer-Server-Release.zip
cd LMPServer/
dotnet Server.dll
sudo ufw allow 8800
timeout 10 dotnet Server.dll

# To add a password
# cd Config/
# nano GeneralSettings.xml

# To start on boot
# @reboot cd ~/LMPServer/ && sudo dotnet Server.dll

# Create firewall rule on GCP
# Visit https://console.cloud.google.com/net-security/firewall-manager/firewall-policies
# Allow ingress on 8800