diff --git a/main.go b/main.go
index a224553..3ceec41 100644
--- a/main.go
+++ b/main.go
@@ -1,20 +1,40 @@
 package main
 
 import (
-	"fmt"
-	"log"
+	"flag"
 	"os"
 	"os/signal"
 	"syscall"
 
+	cc "git.loafle.net/commons_go/config"
 	"git.loafle.net/commons_go/logging"
+	oocc "git.loafle.net/overflow/overflow_commons_go/config"
 	"git.loafle.net/overflow/overflow_gateway_probe/server"
 	"git.loafle.net/overflow/overflow_gateway_probe/servlet"
+	oogwc "git.loafle.net/overflow/overflow_gateway_websocket/config"
 	oogws "git.loafle.net/overflow/overflow_gateway_websocket/server"
 )
 
-func main() {
+var (
+	configDir     *string
+	logConfigPath *string
+)
 
+func init() {
+	configDir = oocc.FlagConfigDir("./")
+	logConfigPath = oocc.FlagLogConfigFilePath("")
+	flag.Parse()
+
+	logging.InitializeLogger(*logConfigPath)
+
+	cc.SetConfigPath(*configDir)
+	if err := cc.Load(&oogwc.Config, oocc.ConfigFileName); nil != err {
+		logging.Logger().Panic(err)
+	}
+
+}
+
+func main() {
 	defer logging.Logger().Sync()
 
 	sh := server.NewServerHandler()
@@ -27,17 +47,19 @@ func main() {
 
 	go func() {
 		if err := s.Start(); nil != err {
-			log.Printf("Server: Start error %v", err)
+			logging.Logger().Infof("Server: Start error %v", err)
 			return
 		}
 	}()
 
 	select {
 	case signal := <-stop:
-		fmt.Printf("Got signal: %v\n", signal)
+		logging.Logger().Infof("Got signal: %v", signal)
 	}
 
 	servlet.ServletDestroy()
 
 	s.Stop()
+
+	logging.Logger().Infof("Server stopped")
 }
diff --git a/servlet/auth/auth.go b/servlet/auth/auth.go
index 5e1ea77..ce876cb 100644
--- a/servlet/auth/auth.go
+++ b/servlet/auth/auth.go
@@ -1,8 +1,6 @@
 package auth
 
 import (
-	"fmt"
-
 	"git.loafle.net/commons_go/logging"
 	oogwc "git.loafle.net/overflow/overflow_gateway_websocket/config"
 	oogws "git.loafle.net/overflow/overflow_gateway_websocket/server"
@@ -20,7 +18,7 @@ var (
 func ServletInit(sh oogws.ServerHandler) {
 	cfg = oogwc.Config.Servlets[Name]
 	if nil == cfg {
-		logging.Logger().Panic(fmt.Sprintf("Webapp: config of servlet[%s] is not exist", Name))
+		logging.Logger().Panicf("Webapp: config of servlet[%s] is not exist", Name)
 	}
 
 	rpcGH := newGatewayRPCHandler()
diff --git a/servlet/data/data.go b/servlet/data/data.go
index fe6e428..5043faf 100644
--- a/servlet/data/data.go
+++ b/servlet/data/data.go
@@ -1,8 +1,6 @@
 package data
 
 import (
-	"fmt"
-
 	"git.loafle.net/commons_go/logging"
 	oogwc "git.loafle.net/overflow/overflow_gateway_websocket/config"
 	oogws "git.loafle.net/overflow/overflow_gateway_websocket/server"
@@ -20,7 +18,7 @@ var (
 func ServletInit(sh oogws.ServerHandler) {
 	cfg = oogwc.Config.Servlets[Name]
 	if nil == cfg {
-		logging.Logger().Panic(fmt.Sprintf("Webapp: config of servlet[%s] is not exist", Name))
+		logging.Logger().Panicf("Webapp: config of servlet[%s] is not exist", Name)
 	}
 
 	rpcGH := newGatewayRPCHandler()
diff --git a/servlet/probe/gateway_rpc_handlers.go b/servlet/probe/gateway_rpc_handlers.go
index 322811e..2dde15a 100644
--- a/servlet/probe/gateway_rpc_handlers.go
+++ b/servlet/probe/gateway_rpc_handlers.go
@@ -60,7 +60,7 @@ func (sh *GatewayRPCHandlers) Handshake(socketCTX cwf.SocketContext, ctx *fastht
 
 	// var claims jwt.MapClaims
 	// if claims, ok = token.Claims.(jwt.MapClaims); !ok || !token.Valid {
-	// 	logging.Logger().Warn(fmt.Sprintf("Webapp: Token is not valid %v", token))
+	// 	logging.Logger().Warnf("Webapp: Token is not valid %v", token)
 	// 	return "", nil
 	// }
 	bProbeKey := ctx.Request.Header.Peek(oocmp.HTTPRequestHeaderKey_Probe_ProbeKey)
diff --git a/servlet/probe/probe.go b/servlet/probe/probe.go
index c61bba8..515b07e 100644
--- a/servlet/probe/probe.go
+++ b/servlet/probe/probe.go
@@ -1,8 +1,6 @@
 package probe
 
 import (
-	"fmt"
-
 	"git.loafle.net/commons_go/logging"
 	oogwc "git.loafle.net/overflow/overflow_gateway_websocket/config"
 	oogws "git.loafle.net/overflow/overflow_gateway_websocket/server"
@@ -20,7 +18,7 @@ var (
 func ServletInit(sh oogws.ServerHandler) {
 	cfg = oogwc.Config.Servlets[Name]
 	if nil == cfg {
-		logging.Logger().Panic(fmt.Sprintf("Webapp: config of servlet[%s] is not exist", Name))
+		logging.Logger().Panicf("Webapp: config of servlet[%s] is not exist", Name)
 	}
 
 	rpcGH := newGatewayRPCHandler()
diff --git a/servlet/probe/subscriber_handlers.go b/servlet/probe/subscriber_handlers.go
index 56ce0c4..30931a8 100644
--- a/servlet/probe/subscriber_handlers.go
+++ b/servlet/probe/subscriber_handlers.go
@@ -1,8 +1,6 @@
 package probe
 
 import (
-	"fmt"
-
 	"git.loafle.net/commons_go/logging"
 	"git.loafle.net/commons_go/websocket_fasthttp/websocket"
 	oogws "git.loafle.net/overflow/overflow_gateway_websocket/servlet"
@@ -31,7 +29,7 @@ func (sh *SubscriberHandlers) OnSubscribe(channel string, message oos.SubscribeM
 			}
 		}
 	default:
-		logging.Logger().Warn(fmt.Sprintf("[PROBE] SubscriberHandler: Unknown TargetType %s", message.TargetType))
+		logging.Logger().Warnf("[PROBE] SubscriberHandler: Unknown TargetType %s", message.TargetType)
 	}
 }