How to Modify DNS Settings on a Mac – 2025

How to Modify DNS Settings on a Mac

DNS (Domain Name System) is essential for connecting to websites, as it translates domain names (e.g., www.example.com) into IP addresses. Changing DNS settings on your Mac can help improve internet speed, enhance security, or resolve connectivity issues. Whether you want to use a faster DNS provider or troubleshoot a specific problem, the process is simple and can be done in just a few steps. This guide will walk you through how to change DNS settings on your Mac.

Understanding DNS and Why You Might Want to Change It

DNS servers act as the internet’s directory, enabling your browser to locate websites. While your internet service provider (ISP) typically assigns default DNS servers, these may not always be the fastest or most secure.

Here are a few reasons to change your DNS settings:

• Faster browsing: Alternative DNS providers like Google Public DNS or Cloudflare may offer better performance.
• Improved security: Services such as OpenDNS provide added features like malware protection and content filtering.
• Bypassing restrictions: A custom DNS can sometimes help access blocked websites.
• Troubleshooting connectivity issues: Switching DNS servers may fix problems like slow or unreliable connections.

Step-by-Step Guide to Change DNS Settings on a Mac

Step 1: Open System Preferences

1. Click the Apple menu in the top-left corner of your screen.
2. Select System Preferences from the dropdown menu.

Step 2: Access Network Settings

1. In the System Preferences window, click on Network.
2. You’ll see a list of network connections (e.g., Wi-Fi, Ethernet). Select the connection you’re currently using:
   • If you’re connected to Wi-Fi, select Wi-Fi.
   • If you’re using a wired connection, select Ethernet.
3. Click the Advanced button in the bottom-right corner.

Step 3: Go to the DNS Tab

1. In the Advanced settings window, click on the DNS tab at the top.
2. You’ll see two sections:
   • DNS Servers: Lists the current DNS servers your Mac is using.
   • Search Domains: This is optional and can be left blank unless specifically required.

Step 4: Add New DNS Servers

1. To add a new DNS server:
   • Click the + button below the DNS Servers list.
   • Type the IP address of the DNS server you want to use.
     • For example:
       • Google Public DNS: 8.8.8.8 and 8.8.4.4
       • Cloudflare: 1.1.1.1 and 1.0.0.1
       • OpenDNS: 208.67.222.222 and 208.67.220.220
2. Press Enter to save the new DNS server.

Step 5: Remove Old DNS Servers (Optional)

If you want to use only the new DNS servers you’ve added:

1. Select any old DNS servers listed in the DNS Servers section.
2. Click the – button to remove them.

Step 6: Save Changes

1. Click OK to close the Advanced settings window.
2. Back in the main Network settings window, click Apply to save your changes.

Verifying Your New DNS Settings

After updating your DNS settings, it’s a good idea to verify that they are working correctly. Here’s how:

Check Your Connection

1. Open your web browser and try accessing a few websites to ensure everything is working as expected.
2. If you notice faster browsing or smoother connectivity, the new DNS settings are active.

Confirm DNS Server in Use

1. Open the Terminal app on your Mac (search for it using Spotlight).
2. Type the following command and press Enter:
   bash

   scutil --dns

3. Look for the nameserver section in the output. This will show the DNS servers currently in use.

Tips for Choosing the Right DNS Provider

Here are some popular DNS providers and their benefits:

Google Public DNS

• IP addresses: 8.8.8.8 and 8.8.4.4
• Known for speed and reliability.

Cloudflare

• IP addresses: 1.1.1.1 and 1.0.0.1
• Offers enhanced privacy and performance.

OpenDNS

• IP addresses: 208.67.222.222 and 208.67.220.220
• Provides content filtering and security features.

Quad9

• IP address: 9.9.9.9
• Focuses on blocking malicious websites for added security.

Troubleshooting Common Issues

If you encounter problems after changing DNS settings, try the following:

1. Restart Your Mac: A restart often resolves connectivity issues.
2. Reset DNS Settings: If browsing slows down or stops working, return to the DNS tab in Network settings and remove the custom DNS entries. This will restore the default DNS servers.
3. Flush DNS Cache: If changes don’t take effect immediately, flushing the DNS cache can help:
   • Open Terminal and type:
     bash

     sudo killall -HUP mDNSResponder

4. Test a Different DNS Server: Some DNS providers may work better in specific regions. Experiment with alternatives to find the best one for you.

Conclusion

Changing DNS settings on a Mac is a simple yet effective way to optimize your internet experience. Whether you want to speed up your browsing, enhance security, or resolve connectivity issues, this guide provides all the steps you need. By understanding how to locate and update DNS settings, you can take full control of your Mac’s network preferences.

Remember to experiment with different DNS providers to find the one that works best for your needs. And if you encounter any challenges, the troubleshooting tips above will help you get back online in no time!

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• How to Modify DNS Settings on a Mac
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