diff --git a/server/config.json b/server/config.json
index 256b1f3..2ab3bd4 100644
--- a/server/config.json
+++ b/server/config.json
@@ -42,21 +42,25 @@
 		{
 			"name": "cpu high warning",
 			"rule": "cpu>90",
+			"interval": 600,
 			"callback": "https://yourSMSurl"
 		},
 		{
 			"name": "memory high warning",
 			"rule": "(memory_used/memory_total)*100>90",
+			"interval": 600,
 			"callback": "https://yourSMSurl"
 		},
 		{
 			"name": "ipv4 offline warning",
 			"rule": "online4=0",
+			"interval": 1800,
 			"callback": "https://yourSMSurl"
 		},
 		{
 			"name": "you can parse an expression combining any known field",
 			"rule": "(hdd_used/hdd_total)*100>95",
+			"interval": 1800,
 			"callback": "https://yourSMSurl"
 		}
 	]
diff --git a/server/src/main.cpp b/server/src/main.cpp
index d0a1e22..02dcd75 100644
--- a/server/src/main.cpp
+++ b/server/src/main.cpp
@@ -311,7 +311,7 @@ void CMain::WatchdogMessage(int ClientNetID, double load_1, double load_5, doubl
         {
             int ClientID = ClientNetToClient(ClientNetID);
             time_t currentStamp = (long long)time(/*ago*/0);
-            if ((currentStamp-Client(ClientID)->m_AlarmLastTime) > 1800)
+            if ((currentStamp-Client(ClientID)->m_AlarmLastTime) > Watchdog(ID)->m_aInterval)
             {
                 Client(ClientID)->m_AlarmLastTime = currentStamp;
                 printf("node info: %s\n", Client(ClientID)->m_aUsername);
@@ -517,6 +517,7 @@ int CMain::ReadConfig()
 
             str_copy(Watchdog(ID)->m_aName, jStart[i]["name"].u.string.ptr, sizeof(Watchdog(ID)->m_aName));
             str_copy(Watchdog(ID)->m_aRule, jStart[i]["rule"].u.string.ptr, sizeof(Watchdog(ID)->m_aRule));
+            Watchdog(ID)->m_aInterval = jStart[i]["interval"].u.integer;
             str_copy(Watchdog(ID)->m_aCallback, jStart[i]["callback"].u.string.ptr, sizeof(Watchdog(ID)->m_aCallback));
 
             ID++;
diff --git a/server/src/main.h b/server/src/main.h
index 9055406..80df547 100644
--- a/server/src/main.h
+++ b/server/src/main.h
@@ -86,6 +86,7 @@ class CMain
 	struct CWatchDog{
 	    char m_aName[128];
 	    char m_aRule[128];
+        int  m_aInterval;
 	    char m_aCallback[128];
 	} m_aCWatchDogs[NET_MAX_CLIENTS];