数据包的地址类型,inet代表Ipv4,inet6代表Ipv6。通常PF能够根据源或者目标地址自动确定这个参数。protocol 数据包的4层协议: tcp udp icmp icmp6 /etc/protocols中的协议名称 0～255之间的协议号 使用列表的一系列协议.src_addr, dst_addr IP头中的源/目标地址。地址可以指定为: 单个的Ipv4或者Ipv6地址. CIDR ...
PF is able to match packets moving in either direction to state table entries meaning that filter rules which pass returning traffic don‘t need to be written. 并且,由于数据包匹配状态连接时不再进行规则集的匹配检测,PF用于处理这些数据包的时间大为减少。当一条规则使用了keep state选项,第一个匹配...
Tags are sticky, meaning that the packet will be tagged even if the rule is not the last matching rule. Further matching rules can replace the tag with a new one but will not remove a previously applied tag. A packet is only ever assigned one tag at a time. Tags take the same ...
af数据包的地址类型,inet代表ipv4,inet6代表ipv6。通常pf能够根据源或者目标地址自动确定这个参数。protocol数据包的4层协议:+ t 19、cp+ udp+ icmp+ icmp6+ /etc/protocols中的协议名称+ 0255之间的协议号+ 使用列表的一系列协议.src_addr, dst_addrip头中的源/目标地址。地址可以指定为:+ 单个的ipv4或者...
block drop in on ! fxp0 inet allblock drop in inet all这样的规则会存在阻塞所有接口上进入的所有流量的危险。被动操作系统识别被动操作系统识别是通过基于远端主机TCP SYN数据包中某些特征进行操作系统被动检测的技术。这些信息可以作为标准在过滤规则中使用。PF检测远端操作系统是通过比较TCP SYN数据包中的特征和...
ps aux output meaning ➜ rig git:(master) ps aux | head -5 USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND bingoobjca 1522 13.0 1.4 5568692 240992 ?? S 一09上午 22:33.13 /Applications/iTerm.app/Contents/MacOS/iTerm2
The dissertation focuses on the institutionalization of the party system in Indonesia and the meaning of that level of institutionalization for the consolidation of democracy in the country. Different levels of institutionalization along... Johnson, Elaine Paige. 被引量: 14发表: 2002年 加载更多来源...
pass in inet proto tcp from any to 1.2.3.4 \ port > 1023 label "1.2.3.4:>1023" pass in inet proto tcp from any to 1.2.3.5 \ port > 1023 label "1.2.3.5:>1023"The macro expansion for the label directive occurs only at configuration file parse time, not during runtime.once...
block drop in on ! fxp0 inet allblock drop in inet all这样的规则会存在阻塞所有接口上进入的所有流量的危险。被动操作系统识别被动操作系统识别是通过基于远端主机TCP SYN数据包中某些特征进行操作系统被动检测的技术。这些信息可以作为标准在过滤规则中使用。PF检测远端操作系统是通过比较TCP SYN数据包中的特征和...