As a Linux user, it is important to know the DNS servers that your system is using. This information can be useful for troubleshooting network issues, configuring your system's network settings, and more. In this article, we will guide you on how to find all DNS servers in Linux using various methods.
Method 1: Using the nmcli command
The nmcli command is a command-line tool that can be used to manage network connections in Linux. To use the nmcli command to find the DNS servers in Linux, follow these steps:
Open a terminal window on your Linux system.
Type the following command and press Enter:
nmcli dev show | grep DNS
This command will display the DNS servers that your system is using. The output will look something like this:
IP4.DNS[1]: 8.8.8.8
IP4.DNS[2]: 8.8.4.4
In this example, the system is using the Google DNS servers.
Method 2: Using the resolv.conf file
The resolv.conf file is a configuration file for the DNS resolver in Linux. This file contains the DNS servers that your system is using. To view the contents of the resolv.conf file, follow these steps:
Open a terminal window on your Linux system.
Type the following command and press Enter:
cat /etc/resolv.conf
This command will display the contents of the resolv.conf file. The output will look something like this:
# Generated by NetworkManager
search example.com
nameserver 8.8.8.8
nameserver 8.8.4.4
In this example, the system is using the Google DNS servers.
Method 3: Using the dig command
The dig command is a command-line tool for querying DNS servers. To use the dig command to find the DNS servers in Linux, follow these steps:
Open a terminal window on your Linux system.
Type the following command and press Enter:
dig +short NS .
This command will display a list of root DNS servers. The output will look something like this:
a.root-servers.net.
b.root-servers.net.
c.root-servers.net.
d.root-servers.net.
e.root-servers.net.
f.root-servers.net.
g.root-servers.net.
h.root-servers.net.
i.root-servers.net.
j.root-servers.net.
k.root-servers.net.
l.root-servers.net.
m.root-servers.net.
These are the root DNS servers that your system uses to resolve DNS queries.
Knowing the DNS servers that your Linux system is using can be helpful for troubleshooting network issues, configuring your system's network settings, and more. In this article, we have shown you how to find all DNS servers in Linux using various methods. Try these methods and choose the one that suits your needs.
Related Searches and Questions asked:
That's it for this post. Keep practicing and have fun. Leave your comments if any.