diff --git a/README.md b/README.md
index dc88e49..7751312 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ You can get runnable program in the releases of this repository, which supports
 
 ![](https://i.loli.net/2021/05/15/oQM1yZ6pWm3AIEj.png)
 
-You could use redis-cli or other redis client to connect godis server, which listens on 127.0.0.1:6379 on default mode.
+You could use redis-cli or other redis client to connect godis server, which listens on 0.0.0.0:6399 on default mode.
 
 ![](https://i.loli.net/2021/05/15/7WquEgonzY62sZI.png)
 
diff --git a/README_CN.md b/README_CN.md
index 2524ede..e46079d 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -27,7 +27,7 @@ Godis 的信息。
 
 ![](https://i.loli.net/2021/05/15/oQM1yZ6pWm3AIEj.png)
 
-godis 默认监听 127.0.0.1:6379，可以使用 redis-cli 或者其它 redis 客户端连接 Godis 服务器。
+godis 默认监听 0.0.0.0:6399，可以使用 redis-cli 或者其它 redis 客户端连接 Godis 服务器。
 
 ![](https://i.loli.net/2021/05/15/7WquEgonzY62sZI.png)
 
diff --git a/build-all.sh b/build-all.sh
new file mode 100644
index 0000000..5290165
--- /dev/null
+++ b/build-all.sh
@@ -0,0 +1,2 @@
+./build-darwin.sh
+./build-linux.sh
\ No newline at end of file
diff --git a/build.sh b/build-darwin.sh
similarity index 100%
rename from build.sh
rename to build-darwin.sh
diff --git a/cmd/main.go b/cmd/main.go
index 3e481b7..2a6d581 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	_ "embed"
 	"fmt"
 	"github.com/hdt3213/godis/config"
 	"github.com/hdt3213/godis/lib/logger"
@@ -10,22 +9,45 @@ import (
 	"os"
 )
 
-//go:embed banner.txt
-var banner string
+var banner = `
+   ______          ___
+  / ____/___  ____/ (_)____
+ / / __/ __ \/ __  / / ___/
+/ /_/ / /_/ / /_/ / (__  )
+\____/\____/\__,_/_/____/
+`
+
+var defaultProperties = &config.ServerProperties{
+	Bind:           "0.0.0.0",
+	Port:           6399,
+	AppendOnly:     false,
+	AppendFilename: "",
+	MaxClients:     1000,
+}
+
+func fileExists(filename string) bool {
+	info, err := os.Stat(filename)
+	return err != nil && !info.IsDir()
+}
 
 func main() {
 	print(banner)
-	configFilename := os.Getenv("CONFIG")
-	if configFilename == "" {
-		configFilename = "redis.conf"
-	}
-	config.SetupConfig(configFilename)
 	logger.Setup(&logger.Settings{
 		Path:       "logs",
 		Name:       "godis",
 		Ext:        ".log",
 		TimeFormat: "2006-01-02",
 	})
+	configFilename := os.Getenv("CONFIG")
+	if configFilename == "" {
+		if fileExists("redis.conf") {
+			config.SetupConfig("redis.conf")
+		} else {
+			config.Properties = defaultProperties
+		}
+	} else {
+		config.SetupConfig(configFilename)
+	}
 
 	err := tcp.ListenAndServeWithSignal(&tcp.Config{
 		Address: fmt.Sprintf("%s:%d", config.Properties.Bind, config.Properties.Port),