Chapter 8. Redundancy and Resource Availability
High availability and uninterrupted service have been both marketing buzzwords and coveted goals for real-world IT professionals and network administrators as long as most of us can remember. To meet this perceived need and solve a few related problems, CARP and pfsync were added as two highly anticipated features in OpenBSD 3.5. With these tools, OpenBSD and the other operating systems that adopted them came a long way toward offering what other operating systems refer to as general purpose clustering functionality. The terminology used by OpenBSD and its sister BSDs differs from what other products ...
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