diff --git a/docker/centos-rdo-base/Dockerfile b/docker/centos-rdo-base/Dockerfile
index a0ce5248bb..030d751c8b 100644
--- a/docker/centos-rdo-base/Dockerfile
+++ b/docker/centos-rdo-base/Dockerfile
@@ -92,6 +92,23 @@ RUN yum install -y \
 	python-wsme \
 	; yum clean all
 
+# This is dirty like zebra.  This works aorund a bug in Ubuntu 14.04 LTS.  The
+# --net=host option does not work on ubuntu 14.04 because of a kernel bug.  One
+# workaround is to buid pam without authentication.
+# See:
+#    https://registry.hub.docker.com/u/sequenceiq/pam/
+#
+RUN yum install -y tar bzip2 yum-utils rpm-build make
+
+RUN yum-builddep -y pam
+RUN yumdownloader --source pam
+RUN rpmbuild --rebuild  --define 'WITH_AUDIT 0' --define 'dist +noaudit' pam*.src.rpm
+RUN rpm -Uvh --oldpackage ~/rpmbuild/RPMS/*/pam*+noaudit*.rpm
+
+RUN rm -f /*.rpm
+RUN rm -rf ~/rpmbuild
+# End dirty like zebra
+
 RUN mkdir -p /opt/kolla
 ADD service_hosts.sh /opt/kolla/service_hosts.sh
 ADD kolla-common.sh /opt/kolla/kolla-common.sh
diff --git a/docs/developer-env.md b/docs/developer-env.md
index 68a20c6d6b..98dffd4de6 100644
--- a/docs/developer-env.md
+++ b/docs/developer-env.md
@@ -48,10 +48,10 @@ running on your system, stop it:
     sudo systemctl stop docker
     sudo killall -9 docker
 
-Next, download and run the Docker 1.6 LKCD4 (Docker Inc Employee) built binary:
+Next, download and run the Docker 1.6 lk4d4 (Docker Inc Employee) built binary:
 
-    Login to dropbox and download https://www.dropbox.com/s/r6cbxtw1dqa3kzh/docker-1.6.0-rc1?dl=0
-    mv docker-1.6.-rc1 docker
+    Login to dropbox and download https://www.dropbox.com/s/vyz79t4r7nicltc/docker-1.6.0-rc2?dl=0
+    mv docker-1.6.-rc2 docker
     sudo ./docker -d &
 
 The basic starting environment will be created using `docker-compose`.