OpenBSD PF的图形界面(WebBase)管理工具，支持图形界面的规则管理和分析，系统状态(进程，负载，网络)的查看，手工和定时自动的连接状态与连接日志分析和报表功能。 主要特性: PF Statistics active connections, current ruleset. TCP, UDP, ICMP based PF log analysis. Local System Status process, uptime, vm stats. Web based PF

PF PACKET包的socket编程，里面包含了包过滤功能的相关代码。代码中包含了已编译好的可执行文件，可以在linux环境中直接使用。-The PF PACKET package socket programming, which contains the relevant code for packet filtering. The code contains a pre-compiled executable file, can be used directly in the Linux