NetherCeiling

This plugin is intended to help manage the nether ceiling on minecraft servers for a bunch of different scenarios.

Features:

Multi-language support
A safe teleport feature (if you want to use this plugin to close access to the ceiling).
A /unstuck command for players stuck above the nether ceiling.
Prevent creating portals on the ceiling
Prevent using portals on the ceiling
Prevent using portals linked to the ceiling
Enable players to place water on the nether ceiling
Enable sleeping in beds on the nether ceiling
Set a custom build height on the ceiling
Blacklist specific blocks on the ceiling
Limit specific blocks on the ceiling
Remove specific or all blocks on the nether ceiling
Limit entities on the nether ceiling
Disable specific or all mob spawns on the nether ceiling
Prevent using specific vehicles on the nether ceiling
Prevent specific potion effects on the nether ceiling
Nerf specific potion effects on the nether ceiling
Limit movement speed on specific blocks for players and vehicles