Order ordering where ordering is one of:
allow, deny
deny, allow
mutual-failure
Does not need to be enclosed within a <Limit> or <LimitExcept> range, but usually is.
allows, denies, evaluates allow directives and then deny directives
denies, allows, evaluates deny directives and then allow directives
mutual-failure denies access for a host listed in both allow and deny directives, regardless of their ordering