This is returned when using the STATS command "STATS K" request
- With a file, prepending a '!' before the filename. The file can contain for example, a reason, a link to the
- server rules and a contact address.
- IP-based kill lines are designated with a lowercase 'k'. These lines use the same format as normal K: lines, except they apply to all hosts, even if an IP address has a properly resolving host name.
- Additionally, you may specify a hostmask prefixed with $R to indicate a match should be performed against the "real-name" / "info" field instead of the host/IP.