diff --git a/main.go b/main.go
index 14b4e7e..8914e1c 100644
--- a/main.go
+++ b/main.go
@@ -5,7 +5,6 @@ import (
 	"os"
 	"path/filepath"
 	"runtime"
-	"time"
 
 	"github.com/cuigh/auxo/app"
 	"github.com/cuigh/auxo/app/flag"
@@ -32,7 +31,11 @@ func main() {
 	app.Version = "0.7.1"
 	app.Desc = "A web management UI for Docker, focused on swarm cluster"
 	app.Action = func(ctx *app.Context) {
-		misc.LoadOptions()
+		err := config.UnmarshalOption("swirl", &misc.Options)
+		if err != nil {
+			log.Get(app.Name).Error("Load options failed: ", err)
+			os.Exit(1)
+		}
 
 		setting, err := biz.Setting.Get()
 		if err != nil {
@@ -85,7 +88,7 @@ func server(setting *model.Setting) *web.Server {
 	// create biz group
 	form := &auth.Form{
 		Identifier:        security.Identifier,
-		Timeout:           time.Minute * 30,
+		Timeout:           misc.Options.AuthTimeout,
 		SlidingExpiration: true,
 	}
 	g := ws.Group("", form, filter.NewAuthorizer(security.Checker))
diff --git a/misc/misc.go b/misc/misc.go
index cc5bc4a..ef3cb12 100644
--- a/misc/misc.go
+++ b/misc/misc.go
@@ -1,6 +1,8 @@
 package misc
 
 import (
+	"time"
+
 	"github.com/cuigh/auxo/config"
 )
 
@@ -8,9 +10,11 @@ const (
 	keyDockerEndpoint = "swirl.docker_endpoint"
 	keyDBType         = "swirl.db_type"
 	keyDBAddress      = "swirl.db_address"
+	keyAuthTimeout    = "swirl.auth_timeout"
 	envDockerEndpoint = "DOCKER_ENDPOINT"
 	envDBType         = "DB_TYPE"
 	envDBAddress      = "DB_ADDRESS"
+	envAuthTimeout    = "AUTH_TIMEOUT"
 )
 
 // TimeZones holds some commonly used time-zones.
@@ -45,20 +49,22 @@ var TimeZones = []struct {
 	{"GMT-12", -12 * 60 * 60},
 }
 
+// Options holds custom options of swirl.
 var Options = &struct {
 	DockerEndpoint string
 	DBType         string
 	DBAddress      string
-}{}
+	AuthTimeout    time.Duration
+}{
+	DBType:      "mongo",
+	DBAddress:   "localhost:27017/swirl",
+	AuthTimeout: 30 * time.Minute,
+}
 
+// BindOptions binds options to environment variables.
 func BindOptions() {
 	config.BindEnv(keyDockerEndpoint, envDockerEndpoint)
 	config.BindEnv(keyDBType, envDBType)
 	config.BindEnv(keyDBAddress, envDBAddress)
-}
-
-func LoadOptions() {
-	Options.DockerEndpoint = config.GetString(keyDockerEndpoint)
-	Options.DBType = config.GetString(keyDBType)
-	Options.DBAddress = config.GetString(keyDBAddress)
+	config.BindEnv(keyAuthTimeout, envAuthTimeout)
 }