This article was first written in May 2005 for the BeezNest technical
website (http://glasnost.beeznest.org/articles/259).
Introduction
This article is intended to help system administrators with very moderate  knowledge of RedHat Fedora (Core 2) install ViewCVS 0.9.3
Getting the file
Apparently, there is no packaged version of ViewCVS for RHFC2 coming from  a reliable source, so go get it on SourceForge (in this case, Ireland mirror)  - 
ViewCVS from SourceForge
You can do this like this:
wget http://heanet.dl.sourceforge.net/sourceforge/viewcvs/viewcvs-0.9.3.tar.gz
Trying quick start
Then the ideal solution would be to tell you to read the INSTALL file in the viewcvs archive, but it is pretty incomplete if you want to do it quick. First, the "GUI Operation" section says you can launch viewcvs right now, but this will merely result in a Python error:
Traceback (most recent call last):
  File "/home/ywarnier/viewcvs-0.9.3/standalone.py", line 511, in ?
    import viewcvs
ImportError: No module named viewcvs
Installing
So we have to do the whole install anyway. The "INSTALLING VIEWCVS" section  is useful to state what packages should be installed for ViewCVS.cgi to  work.
Launch 
./viewcvs-install as root user and answer the questions  (the default value can be used  by pressing "Enter").
Configuring
Edit 
/usr/local/viewcvs-0.9.3/viewcvs.conf and change the settings  accordingly to your cvs install (probably at least 
cvs_roots)
Edit /etc/httpd/conf/httpd.conf and add something like
ScriptAlias /viewcvs/ "/usr/local/viewcvs-0.9.3/cgi/"
Fixing missing RCS
Then if you try the alias in a browser (http://localhost/viewcvs/viewcvs.cgi), it might work, but if it doesn't, it is probably because RCS is not installed on your computer (even if the error is more about something like the files not corresponding to the filter). You can grab a RCS package 
here or do:
wget http://linuxsoft.cern.ch/cern/7.3.X/i386/RedHat/RPMS/rcs-5.7-15.i386.rpm
rpm -Uvh rcs-5.7-15.i386.rpm
Done
That should work now. Enjoy.
Misc
This  article provides with a way to add PHP syntax highlighting in ViewCVS.