How Do I Find the DNS Aliases for a Server?


Scott Campbell

How Do I Find the DNS Aliases for a Server?

When managing a server, it is important to have a clear understanding of its DNS aliases. DNS aliases are alternate names that can be used to access the server, providing more flexibility and convenience. In this tutorial, we will explore different methods to find the DNS aliases for a server.

Method 1: Using Command Prompt

If you are comfortable with the command line, you can use Command Prompt (Windows) or Terminal (macOS/Linux) to retrieve the DNS aliases. Follow these steps:

  1. Step 1:

    Open Command Prompt or Terminal.

  2. Step 2:

    Type the following command:

    nslookup <server-ip>
    • Replace <server-ip> with the actual IP address of your server.
  3. Step 3:

    The output will display the DNS aliases under the “Aliases” section.

Method 2: Using Online Tools

If you prefer a graphical interface or don’t have access to a command line, there are several online tools available to find DNS aliases. One such tool is ‘DNS Lookup’ by MX Toolbox. Here’s how you can use it:

  1. Step 1:

    Go to the MX Toolbox website (

  2. Step 2:

    Enter your server’s IP address in the ‘DNS Lookup’ field.

  3. Step 3:

    Click on the ‘DNS Lookup’ button.

  4. Step 4:

    The tool will retrieve and display the DNS aliases for your server.

Method 3: Checking DNS Configuration Files

If you have direct access to the server’s file system, you can manually check the DNS configuration files to find the aliases. The location of these files may vary depending on your operating system and DNS server software.

Generally, they are stored in the ‘/etc/’ directory. Here are a few common file names to look for:

  • /etc/hosts
  • /etc/resolv.conf
  • /etc/named.conf

Open these files using a text editor and search for entries related to your server. The aliases should be mentioned alongside the IP addresses.


In this tutorial, we explored different methods to find the DNS aliases for a server. Whether you prefer using command line tools like Command Prompt or Terminal, online tools like ‘DNS Lookup’ by MX Toolbox, or manually checking the DNS configuration files, you now have multiple options at your disposal. Choose the method that suits you best and gain a better understanding of your server’s DNS aliases.

Remember, having a clear knowledge of your server’s DNS aliases is crucial for effective management and accessibility. Incorporate these methods into your workflow and enhance your server administration skills.

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