service ctf
{
    disable     = no
    socket_type = stream
    protocol    = tcp
    wait        = no
    user        = sage
    type        = UNLISTED
    port        = 1337
    bind        = 0.0.0.0
    server      = /bin/sh
    server_args = /ctf/run.sh
    banner_fail = /etc/banner_fail
    passenv     = FLAG HOME
    # safety options
    per_source  = 10    # the maximum instances of this service per source IP address
    rlimit_cpu  = 1     # the maximum number of CPU seconds that the service may use
    #rlimit_as  = 1024M # the Address Space resource limit for the service
}