Software:Pfsync

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Pfsync

pfsync is a computer protocol[1][2] used to synchronise firewall states between machines running Packet Filter (PF) for high availability. It is 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.[3][4][5]

See also

References

  1. ↑ "/etc/protocols". OpenBSD. http://bxr.su/o/etc/protocols. ""pfsync 240"" 
  2. ↑ "/sys/net/if_pfsync.h". OpenBSD. http://bxr.su/o/sys/net/if_pfsync.h. 
  3. ↑ Federico Biancuzzi (2004-04-15). "OpenBSD PF Developer Interview". O'Reilly Media. http://www.onlamp.com/lpt/a/4767. 
  4. ↑ Federico Biancuzzi (2004-05-06). "OpenBSD PF Developer Interview, Part 2". O'Reilly Media. http://www.onlamp.com/lpt/a/4839. 
  5. ↑ "State Synchronization (pfsync) Overview | pfSense Documentation". https://docs.netgate.com/pfsense/en/latest/highavailability/pfsync.html. 




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