
我正在嘗試搜尋特定 DNS 伺服器的清單(我在檔案中),然後查詢特定的主機名稱。我可以做到這一點:)
下一點是我希望返回那些返回 Outlook-emea* 之外的結果的 DNS 伺服器的列表,我想要 DNS 伺服器的 IP 以及結果。
我遇到的問題是 DNS 命令返回 CNAMES 和 A 記錄 - 我只對 A 記錄感興趣,而且我不知道如何過濾結果。這是我到目前為止所擁有的。
$Address = 'outlook.office365.com'
#$listofIPs = Get-Content 'C:\Users\user1\file.txt'
$listofIPs = '8.8.8.8'
$ResultList = @()
foreach ($ip in $listofIPs)
{
$Result = Resolve-DnsName -Name $Address -Type A -Server $ip
Write-Host ""
Write-Host DNS Server: -foregroundcolor "green" $ip
Write-Host ""
Write-Host Resolved Names: -foregroundcolor "green"
}
有人可以幫忙嗎?
答案1
這是我迄今為止根據您的腳本編寫的腳本:
$Address = "outlook.office365.com"
$listofIPs = Get-Content "C:\file.txt"
$ResultList = @()
foreach ($ip in $listofIPs)
{
# The following query will list only records begining with "outlook-", but not begining with "outlook-emea"
$DNSquery = (Resolve-DnsName -Name $Address -Type A -Server $ip).Name | Where-Object {$_ -inotlike "outlook-emea*" -and $_ -ilike "outlook-*"}
# We assume, based on several tests, that selecting the first result for the previous query is enough.
$Result = $DNSquery | Select -First 1
if ($DNSquery)
{
# Creating custom object to feed the array
$Object = New-Object PSObject
$Object | Add-Member -MemberType NoteProperty -Name "DNS Server IP" -Value $ip
$Object | Add-Member -MemberType NoteProperty -Name "Result" -Value $Result
$ResultList += $Object
}
# Displaying the array with the results
$ResultList
}
這是當我的文字檔案包含 8.8.8.8、8.8.8.4、173.255.0.194 和 173.201.20.134 時的結果: