Start from the Minecraft hosting page, choose RAM for your player cap and mod load, then use the panel to start the jar.
First-hour tasks
- Set server properties — difficulty, gamemode, max players
- Op trusted admins via the console
- Install plugins or mod loaders compatible with your egg
- Schedule nightly restarts to clear memory leaks on heavy modpacks
Panel reference: Pterodactyl basics. Overview: game servers.