Computer firewall protocol
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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※
References※
- ^ "/etc/protocols". BSD Cross Reference. OpenBSD.
pfsync 240
- ^ "/sys/net/if_pfsync.h". BSD Cross Reference. OpenBSD.
- ^ Federico Biancuzzi (2004-04-15). "OpenBSD PF Developer Interview". ONLamp. O'Reilly Media. Archived from the original on 2004-05-08. Retrieved 2019-03-20.
- ^ Federico Biancuzzi (2004-05-06). "OpenBSD PF Developer Interview, Part 2". ONLamp. O'Reilly Media. Archived from the original on 2004-06-19. Retrieved 2019-03-20.
External links※
- PF: Firewall Redundancy with CARP and pfsync (OpenBSD PF FAQ)
pfsync(4)
man-page in OpenBSD, FreeBSD and NetBSDsys/net/if_pfsync.h
in OpenBSDsys/net/if_pfsync.c
in OpenBSD
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