How to Perform Proper vCenter DNS Configuration

Proper DNS configuration plays a vital role in shaping a seamless and reliable online experience for users and organizations alike.


By Zelia / Updated on September 5, 2023

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What is DNS

DNS, or Domain Name System, is a fundamental technology used in computer networks to translate human-readable domain names into numerical IP addresses. It acts as a decentralized directory or database that enables you to access websites, servers, and other resources using easily recognizable domain names (like instead of having to remember complex IP addresses (like

In essence, DNS functions as a translator between the domain names that people use to navigate the internet and the IP addresses that computers and servers use to identify each other on the network. When you enter a domain name into your web browser, the DNS system is responsible for finding the corresponding IP address associated with that domain so that your request can be properly directed to the correct server hosting the website or resource you're trying to access.


Benefits of proper DNS configuration

Proper DNS configuration offers a range of benefits that contribute to efficient and secure network operations. These benefits include:

  • Enhanced Network Performance: A well-configured DNS system reduces the time it takes to resolve domain names into IP addresses. This results in faster access to websites and resources, improving overall experience and productivity.
  • Optimized Internet Browsing: With proper DNS configuration, web pages load more quickly, as the time needed to translate domain names to IP addresses is minimized. This is particularly important for e-commerce websites and online services where speed can significantly impact your engagement.
  • Efficient Communication: In an enterprise setting, proper DNS configuration ensures seamless communication between vCenter multiple DNS servers and applications. It enables rapid data transfers and smooth interaction across the network, leading to enhanced collaboration and productivity.

How to perform vCenter DNS configuration

Configuring vCenter DNS settings is crucial for efficient communication, seamless operations, and enhanced security. Here's a step-by-step guide if vCenter DNS configuration failed:

1. Access the vCenter Server instance within the vCenter Server Appliance by logging in as administrator@your_domain_name using the vSphere Web Client. You can do this by going to the URL http://appliance-IP-address-or-FQDN/vsphere-client.

2. Once on the vSphere Web Client's main page, navigate to Home >> Administration >> System Configuration.


3. Under System Configuration, click Nodes.

4. Under Nodes, select a node and click the Manage tab.


5. Within the Manage tab, select Networking, and initiate the Edit process.

6. Expand DNS and modify the relevant settings.


7. Expand the network interface name to access the IP address settings for editing.

8. Adjust the settings for the IPv4 address as needed.

9. Modify the settings associated with the IPv6 address.

modify-ipv4-and-ipv6 address

10. (Optional) Delete a dynamic IPv6 address. Click Remove addresses. Select the IP address you intend to remove and click the Delete icon. Confirm by clicking OK.


11. Save your modifications by clicking OK.

Seamless vCenter VMs backup to protect your data security

Now that we have successfully configured the DNS settings in vCenter, let's shift our focus to another crucial aspect of managing our virtual environment: ensuring the safety and recoverability of our virtual machines. vCenter VM backup plays a vital role in safeguarding our data and applications.

Here I would like to introduce you a reliable VMware backup software -AOMEI Cyber Backup, it provides a reliable solution for backing up your VMs seamlessly. With options for scheduling, encryption, and flexible recovery, AOMEI Cyber Backup ensures that your data remains protected and recoverable in the event of data loss and offers the following benefits:

♢ Agentless Backup: Create complete and independent image-level backup for VMware ESXi VMs.
♢ Role Assignment: Allows one administrator to create sub-accounts with limited privileges.
♢ Multiple Storage Destinations: Back up to local folders or NAS (folders shared via the SMB protocol).
♢ Automated Execution: Automate virtual machine protection and notified by email.
♢ Restore from Any Point: Restore entire VM from any backed up restore points.

AOMEI Cyber Backup supports VMware ESXi 6.0 and later versions. Here I will demonstrate how to perform VMware VM backup and restore with ease. Click the following button to download the 30-day free trial.

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*You can choose to install this VM backup software on either Windows or Linux system.

Automate backup and restore VMware VMs via AOMEI Cyber Backup

1. Bind Devices: Access to AOMEI Cyber Backup web client, navigate to Source Device >> VMware >> + Add VMware Device >> Add vCenter or Standalone ESXi host as the source device. And then click >> Bind Device.


2. Create Backup Task: Navigate to Backup Task >> + Create New Task, and then specify Task Name, Backup Type, Device, Target, and Schedule. With its concise interface, any operation can be done via several simple steps. Not only VMware backup and Hyper-V backup, it also supports SQL Server.

  • Device: Cover multiple VMs on the host in one backup task.
  • Target: Select to back up to a local path, or to a network path. Used paths will be saved in Favorite Storage for handy selection.
  • Schedule: Choose to perform full, differential or incremental backup, and automate execution daily, weekly or monthly according to the frequency you specified.
  • Cleanup: Configure a retention policy to auto delete old backup files and save storage space.


3. Start Backup: You can select Add the schedule and start backup now, or Add the schedule only.


4. The tasks you create for backups will be listed and monitored separately so you can check their progress, change their schedules, and restore them. Navigate to Start Restore >> Restore to, you can change restore location here.

  • Restore to original location: Restore a VM to original host without any complicated reinstallation and configuration.
  • Restore to new location: Create a new VM in the same or another datastore/host directly from the backup to perform out-of-spacre recovery, saves the trouble of re-configuring the new VM.



A well-configured DNS within the vCenter environment is the cornerstone of efficient communication, enhanced performance, and strengthened security. By following the step-by-step guide provided in this article, you can seamlessly configure DNS settings within vCenter.

Additionally, by incorporating solutions like AOMEI Cyber Backup, you can further elevate your data security measures, safeguarding your virtual infrastructure and enabling confident management of your vCenter VMs. Embrace the power of proper DNS configuration and comprehensive backup solutions to unlock the full potential of your virtualized environment.

Zelia · Editor
Zelia is an editor from AOMEI Technology.She mainly writes articles about virtual machine. Writing is one of her hobbies and she wants her articles to be seen by more people. In her spare time, she likes to draw and listen to music, and it is a pleasure for her to focus on her own world.