player_backend = sqlite3 - which DB backend to use for player data
readonly_backend = sqlite3 - optionally readonly seed DB (DB file _must_ be located in "readonly" subfolder)
auth_backend = files - which DB backend to use for authentication data
+ mod_storage_backend = sqlite3 - which DB backend to use for mod storage
server_announce = false - whether the server is publicly announced or not
load_mod_<mod> = false - whether <mod> is to be loaded in this world
pgsql_player_connection = (same parameters as above)
pgsql_readonly_connection = (same parameters as above)
pgsql_auth_connection = (same parameters as above)
+ pgsql_mod_storage_connection = (same parameters as above)
Redis backend specific settings:
redis_address = 127.0.0.1 - Redis server address