Linux - This site is running on Linux.
Apache - This site is running on Apache, which is running on Linux.
PHP - This site runs PHP on Apache and Linux.
DocBook - The content on this site is HTML generated from DocBook ultimately rendered with PHP on Apache and Linux.
Transition - PHP brings raw db2html output into this template. I had to modify the output a little using DSSSL style sheets to include my css... Here is the raw db2html output.