Previously, the Windows agent controller used TCP-IP as a channel to
local Windows agent, but this type of communication can lead to port
conflicts. Also, mailslots inherently provide slightly better level
of local security.
If, for some reason it is required to use TCP-IP as a channel,
you may set system.controller.agent_channel in the check_mk.user.yml
to any appropriate value, for example, "localhost:28250".
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