Powershell - Get server name and IP from text list - powershell

Question

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Experts-Exchange
I am trying to take a server (host name) list and save the host name and IP address in a .csv file.
Using the following Powershell code, I do see the host name but the same IP address, for every server, in the results pane.
$servers = get-content "C:\TEMP\servers.txt"
$serversAndIps = "C:\TEMP\List_of_servers_with_ips.csv"
$results =#()
foreach ($server in $servers) {
$results =#()
$result = "" | Select ServerName , ipaddress
$result.ipaddress = [System.Net.Dns]::GetHostAddresses($server)
foreach($a in $addresses) {
"{0},{1}" -f $server, $a.IPAddressToString
}
$result.servername = $server
$results += $result
}
$results | export-csv -NoTypeInformation $serversandips
When I open the .csv file, I get this:
"ServerName","ipaddress"
"Server_name_1","System.Net.IPAddress[]"
If I run this PowerShell script, I can get the host name and the correct IP address in the results pane. I just need to know how to transfer the results to a .csv file.
$servers = get-content "C:\TEMP\servers.txt"
foreach ($server in $servers) {
$addresses = [System.Net.Dns]::GetHostAddresses($server)
foreach($a in $addresses) {
"{0},{1}" -f $server, $a.IPAddressToString
}
}
Any suggestions?

Answer 1

Looks like some simple typos at work.
$result was being reset inside the in the loop
$addresses inside the loop wasn't assigned.
$result.ipaddress was not assigned to $a.IPAddressToString for the output object.
Try this:
$servers = get-content "X:\servers.txt"
$serversAndIps ="X:\test.csv"
$results = #()
foreach ($server in $servers)
{
$result = "" | Select ServerName , ipaddress
$result.ipaddress = [System.Net.Dns]::GetHostAddresses($server)
$addresses = [System.Net.Dns]::GetHostAddresses($server)
foreach($a in $addresses)
{
"{0},{1}" -f $server, $a.IPAddressToString
$result.ipaddress = [System.Net.Dns]::GetHostAddresses($server)
}
$result.servername = $server
$result.ipaddress = $a.IPAddressToString
$results += $result
}
$results | export-csv -NoTypeInformation $serversandips