pfsync is a computer protocol 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.

See also

  • OpenBSD
  • PF (firewall)
  • CARP
  • Linux-HA
  • Linux Virtual Server

References

External links

  • PF: Firewall Redundancy with CARP and pfsync (OpenBSD PF FAQ)
  • pfsync(4) man-page in OpenBSD, FreeBSD and NetBSD
  • sys/net/if_pfsync.h in OpenBSD
  • sys/net/if_pfsync.c in OpenBSD



Synology NAS & pCloud mit rclone synchronisieren — Chrischis Blog

v3.78 Das neue Sync Modul, Personenfilter überarbeitet ChurchTools

HA Setup, Problems with pfsync r/opnsense

Zentralisiertes Backup von pfSense Konfigurationen phi wir leben

PureSync Download (Windows / Deutsch) bei