Uploading an existing map to your server

How to upload an existing map to your server

How to upload an existing world save: How to upload an existing world save
Installing Feed The Beast modpacks (1.7.10 & 1.10.2): How to install Feed The Beast modpacks (1.7.10 & 1.10.2)
How to switch Minecraft versions in the Minecraft launcher: How to switch Minecraft versions in the Minecraft launcher
Does Force Op Exist?: Does Force Op Exist?
Understanding Minecraft server log files: How to understand Minecraft server log files