Be sure to add the mods to your client too. Any references to Cauldron are out of date as Cauldron is no longer supported. Depending on how you are setting up your mods, you may need to install a Minecraft server that can load mods. If you are installing mods into a pre-existing modded server, continue to the next section, as it should have Forge or Cauldron. Forge is the original Minecraft server that can only load Forge mods. Cauldron is a more feature rich and powerful system. Keep in mind that installing new mods into pre-existing mod packs can be tricky. You can backup your server by downloading its files from the server FTP. It sometimes takes a lot of trial and error. We also recommend adding one mod at a time so troubleshooting will be easier.
Introduction: How to Setup a Modded Minecraft Server (1.12.2)
How to Install Forge Mods on a Server
Minecraft is a fun game to play with friends, and modding the game can add many more possibilities. Server hosting websites or Minecraft Realms cost a monthly subscription to use. If you don't have the money to have a separate website host the server for you, setting up your own server for free will be your best option.
Step 1: Install Minecraft, Add Forge Mod Loader
Which modpacks can be instantly installed onto a Minecraft server? We also allow you to create your own custom modpack server! What happens after I buy the server? As soon as you buy the server, you can then install the modpack onto your server. It's a one-click process where the control panel will handle the installation for you.