A whitelist lets you control who can join your 7 Days to Die server. Like admins, whitelist entries are stored in serveradmin.xml and should use the player's SteamID64.
You can find a player's SteamID64 with a lookup site such as steamid.io. Use the long SteamID64 number, not their display name.
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Open your 7 Days to Die server in the control panel, then click Configuration Files. Find serveradmin.xml and open it with the Text Editor.
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Scroll down until you find the <whitelist> section. If you add entries here, whitelist-only mode is enabled and only listed players will be able to join.
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Add one line for each player you want to allow:
<user platform="Steam" userid="76561198000000000" name="PlayerName" />
Replace the example number with the player's SteamID64. The name value is optional, but it makes the file easier to read later.
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A simple whitelist section should look like this:
<whitelist>
<user platform="Steam" userid="76561198000000000" name="PlayerOne" />
<user platform="Steam" userid="76561198000000001" name="PlayerTwo" />
</whitelist>
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Save the file, then restart your server. Once the whitelist is active, only the players listed in that section should be allowed to join.
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If someone cannot join after being added, double-check their SteamID64 and make sure the XML formatting is still valid. If the file is broken, the server may ignore the whitelist section.
