sumitrai,
Query:
"i m thinking of shifting my file server on linux....n i m nt able to block mp3 files and .extension files being copied from the file server.
plls help..."
One way:
Put these files into a directory, then set permission of that directory into exclusive: do this--
user@host--$: mkdir mymp3
user@host--$: chmod 700 ./mymp3
that way you alone can open the directory and read its contents. BTW, reload services in order for new permission to take effect.
Another way:
Do not share those files, exclude them from the shared folders.
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Hope this helps.
good luck.