sudo apt-get install build-essential apache2-threaded-dev yada
dpkg-buildpackage -b
sudo dpkg -i ../libapache2-mod-rpaf_X.X-X.X_XXX.deb

yum install httpd-devel
make
make install

RPAF_Enable      (On|Off)           - Enable reverse proxy add forward

RPAF_ProxyIPs    127.0.0.1 10.0.0.1 - What IPs to adjust requests for

RPAF_Header      X-Forwarded-For    - The header to use for the real IP
                                      address.

RPAF_SetHostName (On|Off)           - Update vhost name so ServerName &
                                      ServerAlias work

RPAF_SetHTTPS    (On|Off)           - Set the HTTPS environment variable
                                      to the header value contained in
                                      X-HTTPS, or X-Forwarded-HTTPS.

RPAF_SetPort     (On|Off)           - Set the server port to the header
                                      value contained in X-Port, or
                                      X-Forwarded-Port.

LoadModule        rpaf_module modules/mod_rpaf.so
RPAF_Enable       On
RPAF_ProxyIPs     127.0.0.1 10.0.0.10 10.0.0.20
RPAF_SetHostName  On
RPAF_SetHTTPS     On
RPAF_SetPort      On