diff --git a/Mokou/server.c b/Mokou/server.c
index eac544d..5569660 100644
--- a/Mokou/server.c
+++ b/Mokou/server.c
@@ -2,6 +2,7 @@
 
 #include "mk_server.h"
 
+#include "mk_service.h"
 #include "mk_version.h"
 #include "mk_util.h"
 #include "mk_log.h"
@@ -16,6 +17,7 @@
 
 struct sockaddr_un sun;
 int server;
+extern const char* mk_errors[];
 
 int mk_server_init(void){
 	remove("/tmp/mokou.sock");
@@ -40,15 +42,56 @@ int mk_server_init(void){
 	return 0;
 }
 
+#define PROTOCOL_ERROR "EProtocol Error\n"
+
 void mk_server_loop(void){
 	struct sockaddr_un cun;
 	socklen_t socklen = sizeof(cun);
-	char* ver = mk_strcat3("V", mk_get_version(), "\n");
+	char* ver = mk_strcat3("R", mk_get_version(), "\n");
+	char cbuf[2];
+	cbuf[1] = 0;
+	char* str = malloc(1);
+	str[0] = 0;
 	while(1){
 		mk_log("Waiting for the connection");
 		int cli = accept(server, (struct sockaddr*)&cun, &socklen);
 		send(cli, ver, strlen(ver), 0);
+		while(1){
+			if(recv(cli, cbuf, 1, 0) <= 0) break;
+			if(cbuf[0] == '\n'){
+				if(str[0] == 'U'){
+					int err = mk_start_service(str + 1);
+					if(err != 0){
+						send(cli, "E", 1, 0);
+						send(cli, mk_errors[err], strlen(mk_errors[err]), 0);
+						send(cli, "\n", 1, 0);
+					}else{
+						send(cli, "Mok\n", 4, 0);
+					}
+				}else if(str[0] == 'D'){
+					int err = mk_stop_service(str + 1);
+					if(err != 0){
+						send(cli, "E", 1, 0);
+						send(cli, mk_errors[err], strlen(mk_errors[err]), 0);
+						send(cli, "\n", 1, 0);
+					}else{
+						send(cli, "Mok\n", 4, 0);
+					}
+				}else{
+					send(cli, PROTOCOL_ERROR, strlen(PROTOCOL_ERROR), 0);
+				}
+				free(str);
+				str = malloc(1);
+				str[0] = 0;
+				break;
+			}else if(cbuf[0] != '\r'){
+				char* tmp = str;
+				str = mk_strcat(tmp, cbuf);
+				free(tmp);
+			}
+		}
 		close(cli);
 	}
 	free(ver);
+	free(ver);
 }
diff --git a/Mokou/service.c b/Mokou/service.c
index 1080f4b..958c0ec 100644
--- a/Mokou/service.c
+++ b/Mokou/service.c
@@ -19,6 +19,7 @@ struct mk_service** services = NULL;
 
 #ifdef __linux__
 const char* sys_signame[] = {
+	"",
 	"HUP",
 	"INT",
 	"QUIT",
@@ -200,7 +201,7 @@ void mk_service_scan(void){
 	}
 }
 
-const char* errors[] = {
+const char* mk_errors[] = {
 	"Success",
 	"No such service",
 	"Service is alive",