Valheim games can be public or private; private servers can be protected via password or whitelisting. Whitelists allow for less hassle when connecting to servers, as Valheim will not remember passwords when connecting to servers. Whitelists also allow greater control over who can join the server, as there is no risk of passwords being leaked or cracked.
1. Log in to the BisectHosting Starbase panel.
2. Go to the Files tab.
3. Open the permittedlist.txt file.
4. Enter the desired SteamID64s separated by a new line. Learn how to find SteamID64 here.
5. Press the Save button. The whitelist will go into effect as soon as it's saved.