If you want to scan the raw data information that goes past on the network, you need to use a tool other than nmap, which only scans, hosts, and ports.
如果您希望扫描经过网络传输的原始数据信息，那么您需要使用一种其他工具，而不是nmap，因为它只能扫描主机和端口。
The easiest way to do this is to run nmap, record the output, and then use a tool like diff to compare the output and report the changes.
要完成这项任务，最简单的方法是运行nmap，记录其输出，然后使用像diff这样的工具，以便对输出信息进行比较，并报告其中的更改。
You can see an example of this in Listing 4, where you are comparing the output of two executions of nmap on the same host.
您可以在清单4中看到相关的示例，其中对同一台主机两次执行nmap所得到的输出进行了比较。
The nmap tool provides the ability to scan for hosts across your network.
nmap工具提供了在整个网络上扫描主机的功能。
From some other system with network connectivity to your server, you can use the nmap utility to make sure the server is listening.
在一些与您的服务器连网的其他系统中，可以使用nmap工具以确保服务器执行侦听操作。
Nmap is a free, open source utility for network exploration or security auditing.
Nmap是一个用于网络检测或安全审计的免费开源工具。
Nmap is an extremely flexible tool that can do active and passive scanning of remote (and local) systems.
Nmap是一个非常灵活的工具，它可以主动或被动地扫描远程(和本地)系统。
The attacker may obtain such a list by performing a simple ping sweep using any number of freeware tools, such as Angry IP scanner or Nmap.
攻击者可能使用多种免费软件工具(如angryIPscanner或Nmap)执行一个简单的ping扫描，以获得一个列表。
Finally, the nmap sets up CTRL-B to call the function to create a numbered backup of the current file.
最后，nmap设置CTRL - b以调用函数来创建对当前文件的有限备份。
Finally, the nmap sets up CTRL-B to call the function to create a numbered backup of the current file.
最后，nmap设置CTRL - b以调用函数来创建对当前文件的有限备份。
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