“ RST”标志的目的是什么?

时间:2019-01-13 13:23:58

标签: tcp port wireshark

我使用Nmap在我的metasploitable机器上扫描了来自Kali的开放端口,并使用Wireshark捕获了流量,并注意到对于发送到开放端口的每个SYN数据包,也发送了一个RST数据包。为什么?

1 个答案:

答案 0 :(得分:1)

阅读RFC 793 3.4,以了解有关重置数据包的更多信息。您的情况是:

1.  If the connection does not exist (CLOSED) then a reset is sent
in response to any incoming segment except another reset.  In
particular, SYNs addressed to a non-existent connection are rejected
by this means.