which unix-pc files MUST be writeable by others?

[Robert J. Granvin]

>There are a couple of accounting files
>(utmp, wtmp, a few things in /usr/adm) that need to be writable.  Getting
>right down to the bottom, everything else I made protected except
>	/etc/drvtab
>	/etc/timedsply

You may also want to consider making root (yes, /) to be NOT world
writeable.

As supplied, / comes world writeable (777), and it's very happy to be
a little more secure (755).

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