NO whitelist. The server does not reset, and does do regular backups.
You only need the modpack to join: https://minecraft.curseforge.com/projects/butterfrog
This is a modded PvE/PvP minecraft server running on 1.12.2. Notable mods include: FTB Utilities, Galacticraft, Minecolonies, Twilight Forest, The Betweenlands, Thaumcraft, Ice and Fire, Immersive engineering, Dimensional Doors, Ultimate car mod, mining dimension, electroblob's wizardry, portality, Zoo and Wild Animals, Mo' Creatures, and many more.
The server is hosted on a very fast internet connection. You can check ping times around the globe here: https://minecraft-mp.com/server/217439/ping/
Visit the server Discord at https://discord.gg/HqanKZK to review server guidelines, the current mod list.
We're a community that appreciates creative minds. On the server, you can find fan-made works from Chrono Trigger, to ancient wonders such as the Lighthouse of Alexandria. You can view a couple screenshots of some server builds at https://www.planetminecraft.com/server/butterfrog-empire-zeal/
Server rules are listed on the Discord