cf3/promises.cf: fix typo and allow connections from localhost and network
Draft as this fixes the connection issue but leads to a different error, see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1041323#10.
Draft as this fixes the connection issue but leads to a different error, see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1041323#10.