diff --git a/bind-input b/bind-input
index c250d81..296f42d 100755
--- a/bind-input
+++ b/bind-input
@@ -36,6 +36,8 @@ touch $BUFFER;
 #--------------------------------------------------------#
 (
 
+	echo " > binding port $IN_PT to $BUFFER";
+
 	trap "kill -9 $NC_PID 2>/dev/null" INT KILL;
 	infail=0;
 
@@ -43,7 +45,7 @@ touch $BUFFER;
 	while [ $infail -lt 10 ]; do
 
 		# (2) bind socket to buffer
-		echo "(.) binding port $IN_PT to $BUFFER";
+		# echo " + $IN_PT -> $BUFFER";
 
 		# (3) Check if port already in use
 		ss -tl4 "( sport = :$IN_PT )" | grep "$IN_PT" >/dev/null;
@@ -52,7 +54,8 @@ touch $BUFFER;
 		# (4) Manage taken port #
 		if [ "$PORT_TAKEN" -ne "1" ]; then
 			infail="`expr $infail + 1`";
-			sleep .5;
+
+			test "$infail" -gt "1" && sleep .5;
 			continue;
 		fi;
 
@@ -69,6 +72,13 @@ LOOP_PID=$!;
 
 
 # (2) Remove buffer + kill loop #
-trap "rm $BUFFER 2>/dev/null; kill -9 $LOOP_PID 2>/dev/null" INT KILL;
+on_exit(){
+	echo " < closing binding port $IN_PT to $BUFFER";
+	rm $BUFFER 2>/dev/null;
+	kill -9 $LOOP_PID 2>/dev/null;
+}
+trap "on_exit;" INT KILL;
 
-wait $LOOP_PID;
\ No newline at end of file
+wait $LOOP_PID;
+
+on_exit;
\ No newline at end of file
diff --git a/bind-output b/bind-output
index c62baef..46c1d80 100755
--- a/bind-output
+++ b/bind-output
@@ -33,9 +33,10 @@ touch $BUFFER;
 
 
 
-# (3) Launch INPUT server
+# (3) Launch OUTPUT server
 #--------------------------------------------------------#
 (
+	echo " > binding $BUFFER to $OUT_IP:$OUT_PT";
 
 	trap "kill -9 %1 2>/dev/null" INT KILL;
 	outfail=0;
@@ -44,22 +45,23 @@ touch $BUFFER;
 	while [ $outfail -lt 10 ]; do
 
 		# (2) bind socket to buffer
-		echo "(.) binding $BUFFER to $OUT_IP:$OUT_PT";
+		# echo " + $BUFFER -> $OUT_IP:$OUT_PT";
 
 		# (3) Check if port open
-		nc $OUT_IP $OUT_PT < /dev/null;
+		nc -z $OUT_IP $OUT_PT >/dev/null 2>&1;
 		PORT_CLOSED=$?;
 
 		# (4) Manage taken port #
 		if [ "$PORT_CLOSED" -eq "1" ]; then
 			outfail="`expr $outfail + 1`";
-			sleep .5;
+
+			test "$outfail" -gt "1" && sleep .5;
 			continue;
 		fi;
 
 		# (5) Bind output
 		outfail="0";
-		( tail -f $BUFFER | nc $OUT_IP $OUT_PT 2> /dev/null || echo "    * cannot access $OUT_IP:$OUT_PT" )&
+		( tail -f $BUFFER | nc $OUT_IP $OUT_PT 2> /dev/null )&
 		wait $!;
 
 	done;
@@ -69,6 +71,13 @@ LOOP_PID=$!;
 
 
 # (2) Remove buffer + kill loop #
-trap "rm $BUFFER 2>/dev/null; kill -9 $LOOP_PID 2>/dev/null" INT KILL;
+on_exit(){
+	echo " < closing binding from $BUFFER to $OUT_IP:$OUT_PT";
+	rm $BUFFER 2>/dev/null;
+	kill -9 $LOOP_PID 2>/dev/null;
+}
+trap "on_exit;" INT KILL;
 
-wait $LOOP_PID;
\ No newline at end of file
+wait $LOOP_PID;
+
+on_exit;
\ No newline at end of file