diff --git a/Dockerfile b/Dockerfile
index 87ef00b8..6462ca79 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,6 +17,9 @@ FROM centos:7.4.1708
 #ENV https_proxy "https://your.actual_https_proxy.com:your_port"
 #ENV ftp_proxy   "http://your.actual_ftp_proxy.com:your_port"
 
+#RUN echo "proxy=$http_proxy" >> /etc/yum.conf && \
+#    echo -e "export http_proxy=$http_proxy\nexport https_proxy=$https_proxy\n\
+#export ftp_proxy=$ftp_proxy" >> /root/.bashrc
 
 # username you will docker exec into the container as.
 # It should NOT be your host username so you can easily tell