I am trying to create the script which will resolve the IP address to DNS name and then ping output computer number:

$name = Read-Host "Please enter IP address"

$comp = Resolve-DnsName $name | select NameHost -First 1

The output is

NameHost

COMPPL01-NB0128.domain.com ```

When I try to format the output, it gives me

@{NameHost=COMPPL01-NB0128.domain.com}

So then I can't ping the result using the command test connection

Test-Connection -ComputerName $comp

As I understood, test-connection cmdl is trying to ping the whole string NameHost=COMPPL01-NB0128.domain.com

How can I select only the computer name from that output and ping it? So far it gives me an error message:

Test-Connection : Testing connection to computer '@{NameHost=COMPPL01-NB0128.domain.com}' failed: A non-recoverable error occurred during a database lookup At line:1 char:1

• Test-Connection -ComputerName $comp

• CategoryInfo : ResourceUnavailable: (@{NameHost=COMPPL01-NB0128.domain.com}:String) [Test-Connection], PingException

  • FullyQualifiedErrorId : TestConnectionException,Microsoft.PowerShell.Commands.TestConnectionCommand

CodePudding user response：

There are two options:

1. Resolve-DnsName 8.8.8.8 | Select-Object -ExpandProperty NameHost You can use Expand property to get host name value alone.

2. (Resolve-DnsName 8.8.8.8).NameHost Using the Dot operator to get its properties.