You can do a port scan on all hosts that you check or just an individual host.

您可以对所检查的所有主机、或者单个主机进行端口扫描。

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The attacker then sends a packet full of SACK options designed to force the other host to scan that entire queue to process each option.

然后攻击者发送一个充满SACK选项的包，目的是使另一方主机扫描整个队列以处理每个选项。

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The simplest form of a TCP port scan is to open a connection to all ports on a host.

TCP端口扫描的最简单形式是打开一个到主机所有端口的连接。

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One study from the General Accounting Office looked at gene scan services marketed to consumers and found a host of misleading results.

FORBES: Why You Shouldn't Trust Newfangled Gene Tests