diff --git a/libs/main/core/pibase.h b/libs/main/core/pibase.h
index c8eff9d8..b066e6cd 100644
--- a/libs/main/core/pibase.h
+++ b/libs/main/core/pibase.h
@@ -248,6 +248,10 @@
    typedef long time_t;
 #endif
 
+#ifdef POSIX_SIGNALS
+#  define PIP_INTERRUPT_SIGNAL SIGTERM
+#endif
+
 #ifdef LINUX
 #  define environ __environ
 #endif
diff --git a/libs/main/core/piinit.cpp b/libs/main/core/piinit.cpp
index 6d29486f..3c768797 100644
--- a/libs/main/core/piinit.cpp
+++ b/libs/main/core/piinit.cpp
@@ -104,7 +104,8 @@ void pipInitThreadSignals() {
 	sigemptyset(&actions.sa_mask);
 	actions.sa_flags = 0;
 	actions.sa_handler = pipThreadSignalHandler;
-	sigaction(SIGUSR2, &actions, 0);
+	if (sigaction(PIP_INTERRUPT_SIGNAL, &actions, 0) != 0)
+		piCout << "sigaction error:" << errorString();
 }
 #endif
 
diff --git a/libs/main/thread/pithread.cpp b/libs/main/thread/pithread.cpp
index dccba139..5b8f372b 100644
--- a/libs/main/thread/pithread.cpp
+++ b/libs/main/thread/pithread.cpp
@@ -608,7 +608,7 @@ void PIThread::interrupt() {
 	QueueUserAPC(winThreadAPC, PRIVATE->thread, 0);
 #else
 #  ifdef POSIX_SIGNALS
-	pthread_kill(PRIVATE->thread, SIGUSR2);
+	pthread_kill(PRIVATE->thread, PIP_INTERRUPT_SIGNAL);
 #  endif
 #endif
 }
diff --git a/main.cpp b/main.cpp
index f39e4f49..46f90d43 100644
--- a/main.cpp
+++ b/main.cpp
@@ -80,7 +80,7 @@ public:
 };
 
 int main(int argc, char * argv[]) {
-	piCout << "main" << GetCurrentThreadId();
+	piCout << "main";
 
 	/*for (int i = 0; i < count; ++i)
 		pipes[i].create();
@@ -109,8 +109,8 @@ int main(int argc, char * argv[]) {
 		delete threads[i];
 	}*/
 
-	PIEthernet eth(PIEthernet::TCP_Client), seth(PIEthernet::TCP_Client);
-	eth.connect("192.168.1.13", 22);
+	PIEthernet eth(PIEthernet::UDP), seth(PIEthernet::TCP_Client);
+	eth.connect("127.0.0.1", 50000);
 	eth.startThreadedRead();
 	//piCout << eth.open();