linux straight out the gate, can't run .asp true files. but you can add mime types, that will make apache run .asp files as php. really u can make apache run any file as php, with just a few lines of code in htaccess.
To get true asp (active server pages), running on linux you will need a processing engine to process the files, like php is a processing engine.
Here are some programs you can install on linux to run asp truely. (still aint built to do it, asp is a windows envoirnment language)
Chilisoft - (The Big Boy): http://www.sun.com/software/chilisoft/index.xml
Mod Mono:
http://www.mono-project.com/Mod_mono
and Example, you can install Tomcat to run .jsp file on linux. JSP also is perferrable on windows systems.