$is_app_server = $::hostname ? {
        /^(backtest|dev|uat|nextgen)/                                => true,
        /^(\w+)\-server\d+/                                          => true,
        /^(bm|lab)\d+/                                               => true,
        /^(gateway|model|monitor|server|trader|session|stp|util|tickdata)\d+/ => true,
        default                                                      => false
    }