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carp and dead daemon
CARP is nice for load ballancing firewalls, but for servers, there is a
small concern: if a daemon dies, the machine still answers ARP on the
shared address, but it will refuse service requests.
Is there an efficient way to automatically shutdown carp interfaces when
a daemon dies or a TCP port quits the LISTEN state? I mean without
polling the service. It seems kqueue can give the info, but is there a
tool for using it?
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