Contributed by sean on from the failing with class dept.
Import hostated, the host status daemon. This daemon will monitor remote hosts and dynamically alter pf(4) tables and redirection rules for active server load balancing. The daemon has been written by Pierre-Yves Ritschard (pyr at spootnik.org) and was formerly known as "slbd". The daemon is fully functional but it still needs some work and cleanup so we don't link it to the build yet. Some TODOs are a partial rewrite of the check_* routines (use libevent whenever we can), improvement of the manpages, and general knf and cleanup. Now that the afore-mentioned partial rewrite is done, testing will be needed in order to get it linked to the build in time for 4.1.A more detailed introduction to this facinating new tool is given by Pierre-Yves at this site:
NOTE: If you want a head start on this you'll have to compile it yourself (src/usr.sbin/hostated) since it is not linked into the default build on current.
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