diff --git a/backend/service-authentication/server.js b/backend/service-authentication/server.js
index 921d731..1102b60 100644
--- a/backend/service-authentication/server.js
+++ b/backend/service-authentication/server.js
@@ -52,7 +52,7 @@ mongoConnect.connectToServer(function( err, client ) {
         changePassword(req,res);
     });
 
-    app.listen(port, () => {
+    app.listen(port, '0.0.0.0',() => {
         console.log (`listening on port ${port}`);
     });
 });
diff --git a/backend/service-message/server.js b/backend/service-message/server.js
index 4981fde..934abdf 100644
--- a/backend/service-message/server.js
+++ b/backend/service-message/server.js
@@ -114,6 +114,6 @@ io.on('connection',socket => {
     });
 });
 
-server.listen(port, () => {
-    console.log(`listening on *:${port}/`);
+server.listen(port, '0.0.0.0',() => {
+    console.log (`listening on port ${port}`);
 });
\ No newline at end of file
diff --git a/backend/service-privateroom/server.js b/backend/service-privateroom/server.js
index fcf5fd6..d42f17d 100644
--- a/backend/service-privateroom/server.js
+++ b/backend/service-privateroom/server.js
@@ -137,6 +137,6 @@ io.on('connection',socket => {
     });
 });
 
-server.listen(port, () => {
-    console.log(`listening on *:${port}/`);
+server.listen(port, '0.0.0.0',() => {
+    console.log (`listening on port ${port}`);
 });
\ No newline at end of file