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The Properties tab reads and writes the server’s server.properties file. Catalyst parses the file into editable key-value rows and saves changes back to disk.

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Common properties

Many server properties are only read during startup. Save the file, then restart the server when changing ports, whitelist behavior, view distances, or gameplay rules that the server caches.

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Workflow

1

Open the server detail page

Select a server from Dashboard or Servers.
2

Choose Properties

Use search to filter long property lists.
3

Edit values

Catalyst saves plain strings, numbers, and booleans exactly as the server expects them in server.properties.
4

Save and restart when needed

Save writes the file. Restart if the property is not hot-reloaded by the server software.
Backend handlers exist for whitelist and banlist files. In the current UI, the visible tab navigation does not expose a separate player-list editor, so use server commands or the Files tab for those files.