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iptable 规则中的“！”是什么意思

tag-icon • tag-icon linux networking bash firewall iptables
iptable 规则中的“！”是什么意思

以下 iptable 规则中的“！”是什么意思

iptables -I inacc ! -i br0 -p UDP --dport 69 -j ACCEPT

我认为与接口有关br0。我认为它指的是除br0

我对么？

答案1

是的。来自“man iptables”

[!] -i, --in-interface name
          Name  of  an  interface  via  which  a packet was received (only for packets entering the INPUT, FORWARD and PREROUTING chains).  When the "!" argument is used before the interface name, the sense is inverted.  If the
          interface name ends in a "+", then any interface which begins with this name will match.  If this option is omitted, any interface name will match.

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