I recently installed Mailman on on my server to provide a mailing list for my extended family. While in the end, I was able to scrounge up the articles I needed by searching the web, many of them were woefully outdated. Here is a short article that pulls together my research and describes in one place what is needed to get Mailman running happily under Debian etch with Exim4.
Traditionally, Unix/Linux/POSIX filenames can be almost any sequence of bytes, and their meaning is unassigned. The only real rules are that "/" is always the directory separator, and that filenames can't contain byte 0 (because this is the terminator). Although this is flexible, this creates many unnecessary problems. In particular, this lack of limitations makes it unnecessarily difficult to write correct programs (enabling many security flaws), makes it impossible to consistently and accurately display filenames, causes portability problems, and confuses users. more ....
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