Similarly, do you get an error message if you say "cp /var/cache/man/index.db /dev/null" (as the NIS user) ? (This just checks to see if that user has read access to the man index database file.)
Similarly, do you get an error message if you say "cp /var/cache/ man/index. db /dev/null" (as the NIS user) ? (This just checks to see if that user has read access to the man index database file.)