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