If you're a Linux user, you may have experienced issues with DNS resolution. DNS (Domain Name System) is the system that translates domain names into IP addresses, which computers use to communicate with each other. When DNS resolution fails, you may not be able to access websites or other online resources.
If you're experiencing DNS resolution issues in Linux, the solution may be as simple as changing your DNS server. Here's how to do it:
Step 1: Open the terminal
To get started, open the terminal on your Linux system. You can do this by pressing the "Ctrl + Alt + T" keys simultaneously, or by searching for "Terminal" in your system's applications menu.
Step 2: Edit the resolv.conf file
Next, you'll need to edit the "resolv.conf" file. This file contains information about the DNS servers that your system is configured to use.
To edit the "resolv.conf" file, enter the following command in the terminal:
sudo nano /etc/resolv.conf
This will open the "resolv.conf" file in the Nano text editor. You should see one or more lines that begin with "nameserver". These lines specify the DNS servers that your system is currently configured to use.
Step 3: Change the DNS server
To change your DNS server, simply replace the IP address of the current DNS server with a new one. For example, you could use Google's public DNS server by replacing the existing IP address with "8.8.8.8".
After you've made the change, press "Ctrl + X" to exit Nano, and then press "Y" to save the changes.
Step 4: Restart the networking service
Finally, you'll need to restart the networking service to apply the changes. To do this, enter the following command in the terminal:
sudo systemctl restart networking.service
This will restart the networking service and apply the changes you made to the "resolv.conf" file.
Conclusion
DNS resolution issues can be frustrating, but fortunately, they're often easy to fix. By changing your DNS server, you can ensure that your Linux system is able to resolve domain names and access online resources. With these simple steps, you should be back online and browsing the web in no time!
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