by Ken Task.
Did you manually install on the Linux server?
If it works on Windows in moodlecode/local/ltiprovider then IF ltiprovider is in the same location on Linux it should work.
What version of Moodles ... on Windows ... on Linux?
Thought in the highest version of Moodle (any platfrom), litprovider was now part of core code.
'spirit of sharing', Ken