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To scan a network for DNS servers, you can use a network scanning tool such as Nmap or Fing. Here are the steps to scan for DNS servers using Nmap:

Install Nmap on your computer if you haven't already. You can download Nmap from the official website.

Open a command prompt or terminal window.

Enter the following command: nmap -sU -p 53 --open [IP range]

Replace [IP range] with the range of IP addresses you want to scan. For example, if you want to scan all IP addresses on the 192.168.0.x subnet, you would enter nmap -sU -p 53 --open 192.168.0.0/24.

Press Enter to run the command.

Nmap will scan the specified IP range for open ports on UDP port 53, which is the port used by DNS servers.

Once the scan is complete, Nmap will display a list of IP addresses that have an open DNS port.

Alternatively, you can use Fing, which is a mobile app that can scan a network for connected devices and display information about them, including their DNS servers. To scan for DNS servers using Fing, follow these steps:

Install Fing on your mobile device from the app store.

Open the app and tap on the "Devices" tab.

Tap on the "Scan" button to scan the network for connected devices.

Once the scan is complete, Fing will display a list of devices on the network.

Tap on a device to view more information about it, including its IP address and DNS server.

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jeetu parganiha

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βˆ™ 2023-04-21 05:22:40
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muhammad.ali.uon

Lvl 2
βˆ™ 2023-01-31 16:07:12
  1. Use "nslookup" command in command prompt
  2. Use network scanning tools such as Nmap
  3. Use online DNS server scanner websites like DNSstuff
  4. Use software specifically designed for network discovery such as SolarWinds or Lansweeper.
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βˆ™ 2014-08-01 02:10:01

use Advanced IP Scanner

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Collin Blatt

Lvl 1
βˆ™ 2022-10-25 16:07:34
Old question, I know. But, I think by using nmap, one could scan specifically for an open port at 53β€”which handles DNS. So... 'nmap -p 53' I think.

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