在Powershell中使用nslookup获取主机名的IP地址 [英] Getting IP addresses for hostnames using nslookup in Powershell

问题描述

我是Powershell脚本的新手，我需要编写一个脚本。我有一个服务器主机名列表，我需要获取这些服务器的IP地址并将结果写入文件。

I am new to Powershell scripting and I need to write one script. I have a list of server hostnames and I need to get IP addresses of those servers and write the results in a file.

主机名是Excel电子表格中的一列，但我可以将它们格式化为任何东西（csv，每行有一个主机名的简单txt文件等）。

The hostnames are one column in Excel spreadsheet but I can format them into anything (csv, simple txt file with one hostname per line etc.).

我想按照主机名的方式格式化输出服务器及其每行IP地址（因此，如果服务器有多个IP，则有多行）。

I would like to format the output the way there is a hostname of the server and its IP address per line (so there are multiple lines in case the server has more than one IP).

到目前为止，我一直在使用简单的文本文件每行的主机名，但从PS的输出我无法区分IP地址的服务器。

So far I have been using the simple text file with hostname per line, but from the output in PS I am unable to distinguish what server the IP address is for.

$servers = get-content "path_to_the_file" 
foreach ($server in $servers) {
[System.Net.Dns]::GetHostAddresses($server)
}

所以我想知道从csv文件加载主机名并再次将主机名和相关的IP地址打印到另一个csv，但我不确定

So I was wondering about loading the hostnames from csv file and printing the hostnames and related IP addresses to another csv again, but I am unsure how.

我正在研究通过在foreach中运行nslookup $ server来捕获所需信息（主机名和IP）的可能性。

I am investigating the possibility to capture the required information (hostname and IP) by running nslookup $server in foreach.

可能有人帮我一把吗？

谢谢。

推荐答案

组合地址的主机名可以在循环内完成。由于主机可以有多个IP地址，因此您也需要将其设置为accout。这将创建另一个循环。像这样，

Combining hostnames to addresses can be done within the loop. As a host can have multiple IP addresses, you need to take that into accout too. This will create another a loop. Like so,

$servers = get-content "path_to_the_file"
foreach ($server in $servers) {
  $addresses = [System.Net.Dns]::GetHostAddresses($server)
  foreach($a in $addresses) {
    "{0},{1}" -f $server, $a.IPAddressToString
  }
}

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