Extended Monitoring Guide
debug <what> <level> - Turn on or off debugging/tracing for various functions.
Enter the command in the form:
debug <what> <level>
where <what> is one of these options:
http - Show HTTP headers.
equiv-refresh - Test HTTP EQUIV-REFRESH headers.
twill - Show twill commands.
and <level> is 0 (for off) or 1 (for on).