Permissions Issues (500 Server Error for CGIs)

If you get a 500 server error when running a CGI script, one likely cause is directory permissions. suexec will refuse to run a cgi if its parent directory is writeable by others. So, make sure permissions are set to 755 and not 775. Note that the directory permissions do not actually affect anything (since we're using AndrewFileSystem), but modifying the suexec code to skip the checks is considered too risky.