PF.CONF(5) - File Formats Manual # PF.CONF(5) - File Formats Manual
NAME # pf.conf - packet filter configuration file
DESCRIPTION # The pf(4) packet filter modifies, drops, or passes packets according to rules or definitions specified in pf.conf.
This is an overview of the sections in this manual page:
PACKET FILTERING including network address translation (NAT).
OPTIONS globally tune the behaviour of the packet filtering engine.
QUEUEING provides rule-based bandwidth and traffic control.
...
PF(4) - Device Drivers Manual # PF(4) - Device Drivers Manual
NAME # pf - packet filter
SYNOPSIS # pseudo-device pf
DESCRIPTION # Packet filtering takes place in the kernel. A pseudo-device, /dev/pf, allows userland processes to control the behavior of the packet filter through an ioctl(2) interface. There are commands to enable and disable the filter, load rulesets, add and remove individual rules or state table entries, and retrieve statistics.
...
PFLOW(4) - Device Drivers Manual # PFLOW(4) - Device Drivers Manual
NAME # pflow - kernel interface for pflow data export
SYNOPSIS # pseudo-device pflow
DESCRIPTION # The pflow interface is a pseudo-device which exports pflow accounting data from the kernel using udp(4) packets. pflow is compatible with netflow version 5 and IPFIX (10). The data is extracted from the pf(4) state table.
Multiple pflow interfaces can be created at runtime using the ifconfig pflow‌N create command.
...