diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..83b75ba
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,5 @@
+# https://docs.docker.com/reference/builder/#the-dockerignore-file
+.git
+*/.git
+README.md
+LICENSE
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..4fe60bd
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,33 @@
+FROM centos:centos6
+
+# Ensure pre-installed packages are up-to-date.
+RUN yum -y update; yum clean all
+ONBUILD RUN yum -y update; yum clean all
+
+# Install dependencies.
+RUN yum -y install epel-release; yum clean all
+
+# https://www.duosecurity.com/docs/authproxy_reference#installation
+RUN yum -y install \
+    gcc make openssl-devel python-devel \
+    tar \
+    which \
+    patch \
+    ; yum clean all
+
+ADD install.patch /root/
+ADD https://dl.duosecurity.com/duoauthproxy-latest-src.tgz /root/
+RUN useradd duo
+
+# Build and install authproxy.
+RUN cd /root; \
+    tar xzf duoauthproxy-latest-src.tgz; \
+    cd duoauthproxy*; \
+    export PYTHON=$(which python); \
+    make; \
+    cd duoauthproxy-build; \
+    patch -p0 < /root/install.patch; \
+    ./install
+
+# `docker run' starts bash by default.
+CMD ["/bin/bash"]
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..99c8a8d
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Paul Morgan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6867fc1
--- /dev/null
+++ b/README.md
@@ -0,0 +1,76 @@
+Duo Authproxy on Centos6
+========================
+
+Overview
+--------
+
+[Duo Authentication Proxy](https://www.duosecurity.com/docs/authproxy_reference)
+provides a local proxy service to enable on-premise integrations
+between VPNs, devices, applications, and
+[Duo two-factor authentication](https://www.duosecurity.com/docs).
+
+This repo provides a way to build Duo Authentication Proxy into
+a docker image and run it as a container.
+
+
+Status
+------
+
+:warning: This is not ready for deployment.
+
+
+References
+----------------
+
+* [Duo Authentication Proxy](https://www.duosecurity.com/docs/authproxy_reference)
+* [Duo two-factor authentication](https://www.duosecurity.com/docs)
+
+
+How-to
+------
+
+Build this image locally on a host with Docker:
+
+    git clone https://github.com/jumanjihouse/docker-duoauthproxy.git
+    cd docker-duoauthproxy
+    docker build --rm -t duoauthproxy .
+
+Run a container with bash from the built image:
+
+    docker run --rm -it duoauthproxy bash
+
+
+Licenses
+--------
+
+All files in this repo are subject to LICENSE (also in this repo).
+
+Your usage of the built docker image is subject to the terms at
+/root/duoauthproxy-*-src/duoauthproxy-build/doc/eula-linux.txt
+within the built image.
+
+View the Duo end-user license agreement:
+
+    eula='/root/duoauthproxy-*-src/duoauthproxy-build/doc/eula-linux.txt'
+    docker run --rm -it duoauthproxy bash -c "cat $eula"
+
+Get a list of licenses for third-party components within the image:
+
+    dir='duoauthproxy-*-src
+    docker run --rm -it duoauthproxy bash -c "find $dir -iregex '.*license.*'"
+
+At the time this document is created, the above commands shows:
+
+    duoauthproxy-2.4.8-src/pkgs/Twisted-14.0.2/LICENSE
+    duoauthproxy-2.4.8-src/pkgs/netaddr-0.7.10/docs/source/license.rst
+    duoauthproxy-2.4.8-src/pkgs/netaddr-0.7.10/LICENSE
+    duoauthproxy-2.4.8-src/pkgs/pyOpenSSL-0.13.1/LICENSE
+    duoauthproxy-2.4.8-src/pkgs/six-1.3.0/LICENSE
+    duoauthproxy-2.4.8-src/pkgs/zope.interface-4.0.5/LICENSE.txt
+    duoauthproxy-2.4.8-src/pkgs/dpkt-1.7/LICENSE
+    duoauthproxy-2.4.8-src/pkgs/pycrypto-2.6/LEGAL/copy/LICENSE.libtom
+    duoauthproxy-2.4.8-src/pkgs/pycrypto-2.6/LEGAL/copy/LICENSE.orig
+    duoauthproxy-2.4.8-src/pkgs/pycrypto-2.6/LEGAL/copy/LICENSE.python-2.2
+    duoauthproxy-2.4.8-src/pkgs/virtualenv-1.9.1/LICENSE.txt
+    duoauthproxy-2.4.8-src/pkgs/pyparsing-1.5.7/LICENSE
+    duoauthproxy-2.4.8-src/pkgs/pyrad-2.0/LICENSE.txt
diff --git a/install.patch b/install.patch
new file mode 100644
index 0000000..efa41b4
--- /dev/null
+++ b/install.patch
@@ -0,0 +1,23 @@
+--- install.orig        2014-12-23 19:08:11.295300746 +0000
++++ install     2014-12-23 19:09:14.960571585 +0000
+@@ -358,9 +358,9 @@
+
+ class AuthproxyInstaller(object):
+     INSTALL_DIR_DEFAULT = os.path.join('/opt', PRODUCT_NAME)
+-    USER_DEFAULT = 'nobody'
++    USER_DEFAULT = 'duo'
+
+-    def __init__(self, install_dir=None, service_user=None, do_initscript=None):
++    def __init__(self, install_dir=INSTALL_DIR_DEFAULT, service_user=USER_DEFAULT, do_initscript='yes'):
+         self.install_dir = install_dir
+         self.service_user = service_user
+         self.service_uid = None
+@@ -374,7 +374,7 @@
+
+     def install(self):
+         # user interaction
+-        self.show_license()
++        # self.show_license()
+         self.get_install_dir()
+         self.get_user()
+