There is one DNS issue which confuses people. This may override what you have set somewhere else. You can override this behaviour in the mandatory configuration file, but you are likely to run into timeout problems if you do. Here is the complete list of options which can be added to the form and will be interpreted by the CGI program. Each has a two letter name.
Values are the same as for the corresponding configuration command except where stated.
The second letter is as follows. Again, the first letter is the code letter for the report.