Fortress-Control is a simple spigot plugin, with which you can control how often Nether Fortress should appear in the Nether. For Minecraft Version 1.17.1
Simple put the jar file, which you can download here, into the plugins folder of your server.
After this, start your server. A config file should now appear in the directory plugins/Fortress-Control. Which you can edit, to set how often a Fortress should appear.
After you change the config values, save the file and restart your server.
- The plugin only affects newly generated Chunks. Not in already generated Chunks.