Pfsync
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It has been suggested that this article or section be merged with Pfsyncd . (Discuss) Proposed since May 2011. |
Pfsync is a computer protocol used to synchronize firewall states between machines running Packet Filter (PF) for High Availability. It's used along with CARP to make sure a backup firewall has the same information as the main firewall. When the main machine in the firewall cluster dies, the backup machine is able to accept current connections without loss.
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