Good to know that your school uses Skole Linux as the PC environment. I had a look at it long ago and was impressed by the number of technogies they've put together into a 'turn-key' solution http://www.slx.no/product#out_of_the_box LAMP is nothing compared to the LDAP, LTSP, etc. you'll find configured in Skole Linux.
It also means that Skole could be an overkill for the OP, since he is looking for a LAMP-server. I didn't know that Skole includes a Moodle instance though.
P.S. I recommended your posting to a couple of people in Kanton Zürich, who work with LTSP - http://www.complino.ch/ for example.
Hardware and performance
Advice Needed for New Moodle Setup for 4 Primary Schools
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