Hello Version 0.8 of knockd has the important new feature of IPv6 support. This is implemented by the new "[openHTTPS]" block in /etc/knockd.conf by a new "command = /usr/local/sbin/knock_add" but the referred "/usr/local/sbin/knock_add" does not exist (additionally /usr/local/bin would not be the right path for an official bin) but "knock_add" does not seem to exist either in the official upstream "http://www.zeroflux.org/proj/knock/files/knock-0.8.tar .gz". Thank you very much.