An operator (op) can use Minecraft's admin commands on your server. You make someone an operator with the op command on the control panel's Console tab.
Give someone operator
- Sign in to the control panel at panel.chicagoservers.co and open your Minecraft server.
- Make sure the server is running, and open the Console tab.
- Type
op YourNamewith the exact Minecraft name (no/in front) and press Enter. The console answersMade YourName a server operator.

Remove operator
- On the Console tab, type
deop Nameand press Enter. - The console answers
Made Name no longer a server operator.
In game, an operator can do the same with /op Name and /deop Name.
What operators can do
The Operator permission level on the Configs tab (Server properties) sets what operators may do: 1 build in spawn protection, 2 cheat commands such as /gamemode and /give, 3 kick and ban, 4 everything, including stopping the server. It's 4 unless you change it. The level is stored for each operator when you op them, so op them again after changing it. The list of operators is the Operators file on the same tab.
For permissions per player or group, use a permissions plugin or mod such as LuckPerms (for Paper, Purpur, Fabric, Forge and NeoForge). Install it from the Mods tab: see How do I install plugins onto my Minecraft server?
Need help? Open a support ticket and we'll take a look.