How Do I Find My DNS Server Name Linux?

When working with Linux, it is important to know how to find your DNS server name. The DNS (Domain Name System) server is responsible for translating domain names into IP addresses. In this tutorial, we will explore different methods to find the DNS server name in Linux.

Method 1: Using the Command Line

To find your DNS server name using the command line, follow these steps:

1. Step 1: Open a terminal window.
2. Step 2: Type the following command and press Enter:

cat /etc/resolv.conf

This command will display the contents of the resolv.conf file, which contains information about your DNS server.

Note:

If you are using a newer version of Linux with systemd-resolved, you may need to use a different command. In that case, type the following command and press Enter:

systemd-resolve --status | grep "Current DNS Server"

This will display the current DNS server configured on your system.

Method 2: Using Network Manager

If you are using a Linux distribution that uses Network Manager, you can also find your DNS server name through its graphical interface. Here’s how:

1. Step 1: Click on the network icon in your system tray.
2. Step 2: Select “Edit Connections” from the dropdown menu.
3. Step 3: In the Network Connections window, select your active network connection and click on the “Edit” button.
4. Step 4: In the Editing dialog, switch to the “IPv4 Settings” or “IPv6 Settings” tab, depending on your network configuration.
5. Step 5: In the DNS section, you will find the DNS server name listed. It may be labeled as “DNS servers,” “Additional DNS servers,” or similar.

Method 3: Using Network Configuration Files

If you prefer working with configuration files, you can find your DNS server name by examining the network configuration files. Here’s how:

1. Step 1: Open a terminal window.
2. Step 2: Type the following command and press Enter to open the network configuration file for editing:

sudo nano /etc/network/interfaces

This command will open the interfaces file in a text editor.

3. Step 3: Look for lines starting with “dns-nameservers” or “nameserver.” The IP addresses listed next to these lines are your DNS server names.

If you have multiple interfaces configured, repeat these steps for each interface in their respective configuration files located in the “/etc/network/interfaces.d/” directory.

Now that you know different methods to find your DNS server name in Linux, you can easily configure or troubleshoot your network settings as needed. Whether you prefer using the command line or graphical tools, Linux provides various options to suit your preferences and requirements.