37

What is the easiest way to know my current DNS server's IP address or domain name? I am trying to troubleshoot my broadband Internet connection under Windows 7.

2
  • 2
    Do you mean Ip address? Or are you actual trying to find which name server you're connection is using?
    – vesquam
    Oct 12, 2012 at 16:16
  • 1
    It sounds like this is your home system, which probably doesn't HAVE a domain.
    – Shinrai
    Oct 12, 2012 at 16:37

5 Answers 5

17

If you know your public IP address simply enter in a command prompt window:

nslookup <your public IP>

You can also specify the name server to check against by appending it to the above command.

You can get your current IP address from sites like http://whatismyip.com

4
  • thats seems fine .. but there was some conflict :( pls see the photo i.stack.imgur.com/Ua6cT.png any solution? Thanks
    – rakib
    Oct 12, 2012 at 16:27
  • @rakib Means there is no public DNS name for you, or your ISP doesn't give one Oct 12, 2012 at 16:28
  • 1
    @rakib, please try running "ipconfig /all" as that will give you more details on the problem. You are essentially troubleshooting your internet connection, yes?
    – mrchampe
    Oct 12, 2012 at 16:44
  • 7
    You can just nslookup anything. It doesn't have to be your own IP address. If you don't provide any parameters, the interactive shell will start and will display the active nameserver right at the top. Oct 12, 2012 at 17:26
70

You want to open "Run" then type

cmd.exe

In the command prompt enter this command

C:\>ipconfig /all | findstr /R "DNS\ Servers"

The output should look something like:
enter image description here

4
  • That shows the DNS server, not the DNS name Oct 12, 2012 at 16:29
  • 3
    Since he is troubleshooting his internet it seems he wants to verify he is connected to the ISP DNS server. It is unlikely he even has a DNS address, which is shown in the screenshot he shared
    – mrchampe
    Oct 12, 2012 at 16:54
  • 3
    This should be the accepted answer, since it directly answers the user's question: "my current DNS server address..." However, on my Windows box the DNS Servers come as a group and not all of them are prefixed with the string. ipconfig /all works, though, if you eyeball it.
    – Mike S
    Dec 30, 2015 at 19:01
  • The order printed is not necessarily the same as the order used.
    – jan-glx
    Sep 25, 2020 at 7:39
7

Personally, I prefer this approach:

echo | nslookup | findstr "Default\ Server"

It will print the name of your default DNS server in the shell

2
  • 2
    actually a combination of the two answers gives the best result: echo exit | nslookup | findstr ":". Just using yours in PS prompts "Supply values for the following parameters: InputObject[0]:", while the other one prints unnecessary lines.
    – merosss
    Apr 11, 2018 at 20:38
  • This does not work in PS to get a quick result, see Bob's answer for PS.
    – Timo
    Jun 1, 2021 at 9:53
6
echo exit | nslookup

This will show the primary DNS server domain name and IP address.

Default Server:  google-public-dns-a.google.com
Address:  8.8.8.8

>

Thanks to @OliverSalzburg's answer.

5

The following powershell command outputs the DNS information in a structured format:

powershell Get-DnsClientServerAddress

Example output:

InterfaceAlias               Interface Address ServerAddresses
                             Index     Family
--------------               --------- ------- ---------------
vEthernet (Default Switch)          21 IPv4    {}
vEthernet (Default Switch)          21 IPv6    {fec0:0:0:ffff::1, fec0:0:0:ffff::2, fec0:0:0:ffff::3}
Wi-Fi                               17 IPv4    {10.0.0.1}
Wi-Fi                               17 IPv6    {2001:123:456:789::1, 2001:123:456:789::2}
5
  • Please do not simply post a command without an explanation about what the command does and how to interpret the output.
    – Tode
    Apr 29, 2021 at 14:55
  • Should it have been a comment then? Apr 30, 2021 at 6:36
  • No: Your solution is valid... just flesh out your answer a bit with the result of the command and why you think this answers the question...
    – Tode
    Apr 30, 2021 at 10:51
  • @TorstenLink I've made the suggested changes May 4, 2021 at 0:01
  • 1
    Yes, that is what I thought... +1 from me.
    – Tode
    May 4, 2021 at 6:04

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