NuFW is an authenticating gateway, which means that connections are authenticated before being forwarded through the gateway. Classical packet filtering systems disregard the identity of the user who may be attempting to access the network, instead caring only about the originating IP addresses. . nuaclgen is a perl script that helps generate LDAP ACLs for use with nuauth, the nufw auth daemon. nuauth_command is a Python script to control the nuauth daemon.