diff --git a/hadoop-namenode/Dockerfile b/hadoop-namenode/Dockerfile
index cd215c7..f2711cf 100644
--- a/hadoop-namenode/Dockerfile
+++ b/hadoop-namenode/Dockerfile
@@ -2,4 +2,6 @@ FROM bde2020/hadoop-base
 
 MAINTAINER Yiannis Mouchakis <gmouchakis@iit.demokritos.gr>
 
+EXPOSE 50070 8020
+
 CMD hdfs namenode -format -nonInteractive & hdfs namenode
\ No newline at end of file