How to Add an Allowlist to your SCP: Secret Laboratory Server
In this guide we are going to cover how you can set up a whitelist on your SCP server. A whitelist is a great way to moderate your server and ensure that players that join your server are only ones that you have allowed to join.
Adding a player to the whitelist
Open your dashboard
Locate your SCP server and click on the panel button.
Once you are on your SCP panel, stop your server then navigate to the Game Settings page.
Once on the settings page, click on the Security tab.

On the security tab ensure Enable Allowlist/Whitelist is turned on under the Access Control section then click submit.


Once the whitelist is enabled then navigate to your File Manager.

Once on the file manager, navigate to following folder:
/.config/SCP Secret Laboratory/config/<ServerPort Number(Typically 7777)>/.
Once in the config folder, open the file UserIDWhitelist.txt by double clicking on it.

For the next part you will need your or the players SteamID64 which can be looked up on SteamID.net.

Once on the website, enter the steam username you’d like to get the ID for and click lookup.
Once looked up, the Steam64ID will appear listed below.
Once you copy the SteamID64 go back to the file UserIDWhitelist.txt and paste in the ID on a new line being sure to add @steam after the steamID64.

Once you have added the players to the file, click save.

Start your server.
Conclusion
You have now enabled the whitelist on your SCP server. Your server will now only allow those you have been added to the whitelist to join your server.
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