How to Change DNS Server on Debian: A Comprehensive Guide

Say Goodbye to Slow Internet Speeds with Debian Change DNS Server

Hello, dear reader! Are you tired of slow internet speeds? Do you often get frustrated when it takes forever to load a webpage? If yes, then this article is for you. Today, we will discuss how to change DNS server on Debian to improve your internet speed and browsing experience.

What is DNS Server?

DNS (Domain Name System) server is like a phonebook for the internet. It translates domain names into IP addresses so that your device can access websites.

Why Change DNS Server on Debian?

Most internet service providers (ISPs) provide their own DNS servers by default. However, these servers are often slow and unreliable, resulting in slow internet speeds. By changing your DNS server to a faster and more reliable one, you can significantly improve your browsing experience.

How to Change DNS Server on Debian?

Changing DNS server on Debian is a simple process. You can do it using either the command-line interface or the graphical user interface. Let’s take a look at both methods.

Method 1: Command-Line Interface

1. Open the terminal by pressing Ctrl + Alt + T.

2. Type the following command to open the Network Manager configuration file:

sudo nano /etc/NetworkManager/NetworkManager.conf

3. In the configuration file, find the line that says “ dns=dnsmasq ” and comment it out by adding a “#” at the beginning of the line.

4. Save and exit the file by pressing Ctrl + X, followed by Y and Enter.

5. Restart the Network Manager service by typing the following command:

sudo systemctl restart NetworkManager.service

6. Open the terminal and type the following command to edit the resolv.conf file:

sudo nano /etc/resolv.conf

7. In the resolv.conf file, add your preferred DNS server(s) in the following format:

nameserver [DNS server IP address]

8. Save and exit the file by pressing Ctrl + X, followed by Y and Enter.

9. Test your new DNS server by opening a web browser and visiting a website.

Method 2: Graphical User Interface

1. Click on the Network Manager icon in the system tray.

2. Select “Edit Connections” from the drop-down menu.

3. Click on the connection you want to modify and click “Edit”.

4. In the “IPv4 Settings” tab, change the “Method” to “Automatic (DHCP) addresses only”.

5. In the “DNS servers” field, add your preferred DNS server(s) in the following format:

[DNS server IP address]

6. Click “Save” and close the Network Manager window.

7. Test your new DNS server by opening a web browser and visiting a website.

Advantages and Disadvantages of Changing DNS Server on Debian

Advantages

Advantages
Explanation
Faster Internet Speeds
By using a faster and more reliable DNS server, you can significantly improve your internet speed and browsing experience.
Bypass Geo-Restrictions
Some DNS servers allow you to bypass geo-restrictions and access content that is not available in your region.
Increased Security
Some DNS servers offer additional security features like malware protection and phishing protection.

Disadvantages

Disadvantages
Explanation
Potential Privacy Concerns
Some DNS servers may collect and store your browsing data, which could be a privacy concern.
Incompatible with Some ISPs
Some ISPs may block certain DNS servers, making them incompatible.
Possible Unavailability
If your preferred DNS server goes down, you may experience internet connectivity issues.

FAQs

How do I know which DNS server is the fastest?

You can use online tools like DNS Benchmark and Namebench to test the speed and reliability of different DNS servers.

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Can I use multiple DNS servers at the same time?

Yes, you can add multiple DNS servers in the resolv.conf file or the Network Manager settings. Your device will use them in the order they are listed.

Do I need to restart my device after changing DNS server?

No, you do not need to restart your device. However, you may need to flush your DNS cache to ensure that your device is using the new DNS server.

Will changing my DNS server affect my internet speed?

Yes, changing your DNS server to a faster and more reliable one can significantly improve your internet speed and browsing experience.

Can I revert back to my ISP’s DNS server if I don’t like the new one?

Yes, you can simply remove the new DNS server from the resolv.conf file or the Network Manager settings to revert back to your ISP’s DNS server.

Is it legal to change DNS server on Debian?

Yes, changing DNS server on Debian is legal and widely practiced.

Will changing my DNS server affect my internet bill?

No, changing your DNS server will not affect your internet bill.

What happens if I input the wrong DNS server address?

If you input the wrong DNS server address, your device will not be able to access the internet. Make sure to double-check the address before inputting it.

Can changing my DNS server cause security issues?

No, changing your DNS server to a more secure one can actually improve your device’s security. However, make sure to choose a reputable DNS server to avoid any potential security issues.

Will changing my DNS server affect my VPN connection?

No, changing your DNS server should not affect your VPN connection.

Can I change DNS server on Debian for specific websites only?

No, changing DNS server on Debian applies to all websites and internet services accessed through your device.

Can I change DNS server on Debian without internet connection?

No, you need an active internet connection to change DNS server on Debian.

Can I change DNS server on Debian without root access?

No, you need root access to change DNS server on Debian.

Is it safe to use public DNS servers like Google DNS?

Yes, public DNS servers like Google DNS are generally safe to use. However, keep in mind that your browsing data may be collected and stored by the DNS provider.

Conclusion

Congratulations, you have successfully learned how to change DNS server on Debian! By following the steps outlined in this article, you can improve your internet speed and browsing experience. Remember to choose a reputable and fast DNS server to get the best results.

So, what are you waiting for? Go ahead and change your DNS server on Debian today! Your internet speed will thank you.

If you have any questions or comments, feel free to leave them in the comment section below. We would love to hear from you!

Disclaimer

The information provided in this article is for educational purposes only. We do not endorse or encourage any illegal activities. Changing DNS server on Debian may not be legal in some countries or regions. Please check your local laws and regulations before proceeding.

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