Connecting to an external DNS server is a fundamental task for anyone working with networking or web development. DNS, short for Domain Name System, is responsible for translating human-friendly domain names into machine-readable IP addresses. In this tutorial, we will explore different methods to connect to an external DNS server and understand the importance of this process.
Why Connect to an External DNS Server?
Before we dive into the technical details, let’s discuss why connecting to an external DNS server is necessary. By default, your device uses the DNS server provided by your internet service provider (ISP). However, there are several advantages to using an external DNS server:
- Improved Performance: External DNS servers are often faster and more reliable than ISP-provided servers, resulting in quicker responses when resolving domain names.
- Enhanced Security: Some external DNS servers offer additional security features like malware blocking and phishing protection, reducing the risk of accessing malicious websites.
- Bypassing Restrictions: If your ISP restricts access to certain websites or services, using an external DNS server can help bypass these restrictions.
Methods of Connecting to an External DNS Server
Method 1: Changing DNS Settings on Your Device
The most common way to connect to an external DNS server is by changing the DNS settings on your device. Follow these steps:
- Open the Control Panel and navigate to Network and Internet > Network and Sharing Center.
- Select your active network connection and click on “Properties”.
- In the Properties window, select “Internet Protocol Version 4 (TCP/IPv4)” and click on “Properties”.
- Choose the option to “Use the following DNS server addresses” and enter the IP addresses of the external DNS servers you want to connect to.
- Click “OK” to save the changes.
- Go to System Preferences and click on “Network”.
- Select your active network connection and click on “Advanced”.
- In the DNS tab, click on the “+” button to add a new DNS server.
- Enter the IP address of the external DNS server and click “OK”.
- Click “Apply” to save the changes.
- Edit the network configuration file located in /etc/netplan using a text editor.
- Add a new nameserver entry with the IP address of the external DNS server.
- Save the changes and exit the text editor.
- Apply the changes using the command: sudo netplan apply
Method 2: Configuring DNS Settings on Your Router
If you have multiple devices connected to your home or office network, configuring your router’s DNS settings can be a more convenient option. By doing so, all devices connected to that network will automatically use the specified external DNS servers. Follow these steps:
- Access DNS Settings:
- Enter External DNS Server Addresses:
- Save Changes:
Login to your router’s admin panel by entering its IP address into your web browser and entering the required credentials.
Navigate to the DNS settings section of your router’s admin panel. The exact location may vary depending on the router brand and model.
Enter the IP addresses of the external DNS servers you want to connect to in the provided fields.
Click on “Save” or “Apply” to save the changes and update your router’s DNS settings.
Connecting to an external DNS server can significantly improve your network performance, security, and bypass restrictions imposed by your ISP. Whether you choose to change the DNS settings on your device or configure them on your router, it’s important to select reliable and trustworthy external DNS servers. Experiment with different servers to find the one that best suits your needs.