What Happens if You Remove a DNS Server?


Angela Bailey

What Happens if You Remove a DNS Server?

When it comes to managing a network or website, the Domain Name System (DNS) plays a crucial role. It translates human-readable domain names into IP addresses, allowing users to access websites with ease.

However, what happens if you remove a DNS server from your network or website? Let’s explore the consequences.

The Importance of DNS Servers

DNS servers act as a phone book for the internet. When you enter a domain name in your browser, such as www.example.com, your computer contacts a DNS server to obtain the corresponding IP address. Without DNS servers, accessing websites through domain names would be impossible.

Potential Issues

If you remove a DNS server without any backup plan or alternative configuration in place, several issues can arise:

  • 1. Inability to Access Websites: With no DNS server available, users will not be able to access websites using their domain names. This can lead to frustration and hinder productivity.
  • 2. Email Delivery Problems: DNS servers are also responsible for handling email routing and delivery.

    Removing a DNS server without proper planning may result in email delivery failures.

  • 3. Slow Internet Speeds: When your computer can’t resolve domain names through a DNS server, it may resort to using alternative methods that can slow down internet speeds.
  • 4. Network Stability Issues: DNS servers play an important role in maintaining network stability. Removing one without appropriate consideration may lead to disruptions and potential downtime.

Mitigating the Impact

To minimize the impact of removing a DNS server, consider the following steps:

  1. 1. Backup DNS Configuration: Before removing a DNS server, ensure you have a backup of the configuration settings and records. This will allow you to restore them if needed or transfer them to another server. Implement Redundancy: Instead of completely removing a DNS server, consider implementing redundancy by having multiple DNS servers.

    This way, even if one server fails or is removed, there will be other servers available to handle DNS requests. Update Network Settings: If you plan to remove a DNS server permanently, make sure to update the network settings of all devices that rely on it. Update the DNS server entries on routers, switches, and other network devices accordingly. Communicate Changes: Inform users or clients about any planned changes to the DNS infrastructure in advance. This will help manage expectations and allow them to make any necessary adjustments on their end.

In Conclusion

Removing a DNS server without proper planning can have significant consequences for your network or website. It can result in an inability to access websites, email delivery problems, slow internet speeds, and network stability issues. To mitigate these risks, ensure you have backups of your configuration settings, implement redundancy with multiple DNS servers, update network settings accordingly, and communicate changes with relevant parties.


DNS servers are vital components of the internet infrastructure and should be handled with care!

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