Install mod_rpaf on CentOS 5, CentOS 6

This is a quick guide on how to install mod_rpaf on CentOS 5 and CentOS 6. (This guide can also be used to install mod_rpaf on RHEL and Fedora Core)

1. Retrieve and Extract mod_rpaf packages:

# cd /usr/local/src
# wget
# tar xzvf mod_rpaf-0.6.tar.gz
# cd mod_rpaf-0.6

2. Build and install mod_rpaf

# apxs -i -c -n mod_rpaf-2.0.c

[ httpd-devel is the package required to run apxs ]

3. Add mod_rpaf to Apache configuration

# vim /etc/httpd/conf/httpd.conf

- Find the “LoadModule” list (near the top)
- Add the following lines at the bottom of the “LoadModule” list:

LoadModule rpaf_module modules/

# mod_rpaf Configuration

RPAFenable On
RPAFsethostname On
RPAFheader X-Forwarded-For

Important: Where “″ is, add your proxy server IP address(es). This will tell mod_rpaf which hosts to get X-Forwarded-For headers from.

4. Finish

Restart Apache for the changes to take effect

/etc/init.d/httpd restart

5. Troubleshooting

The following dependencies may need to be installed before installing mod_rpaf:

httpd-devel, gcc

They can be installed using the following commands:

yum install httpd-devel gcc

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  • Tony Says:

    Thanks it works! Just close the cmd windows and open a new one...

  • greenhart Says:

    I found another way around it. For the /format switch I used: /format:"%WINDIR%\system32\wbem\en-...

  • Jari Aalto Says:

    To determine OS, you can also use command lsb_release(1). See the options how to extract only part o...

  • shadovice Says:

    thanks! it worked like a charm, although there is still minor typo remained: rpm -Uvh http://downlo...

  • Joh Says:

    Great, thank you. Also works with the new version and Centos 6.3 without test repo, just install ...

  • sierprinsky Says:

    Muchas gracias por tu aporte :)...

  • kilby Says:

    The listed solution worked fine for me under Win7 64bit Though I had to run the copy as Asministr...

  • Viper5112 Says:

    The files are already in the C:\Windows\SysWOW64\wbem\en-US and they need to be in the system32 fold...

  • slowmOoh Says:


  • Jørgen Says:

    @Jordan, I had the same problem also on Windows 7 64 bits. It worked for my user account and Admini...

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