You have a requirement to change the DNS server IP addresses on a VMWare ESXi host. However, because Adobe Flash Player is no longer available and the option is not in the newer HTML5 version, you have to make the changes using an SSH connection to your VMWare host.
Connect to your VMWare host using PuTTy and login using the root account.
Adding a DNS Server IP Address
To add DNS servers to your connected host, run the following command:
esxcli network ip dns server add --server=220.127.116.11
- 18.104.22.168 is your primary DNS server.
Run the same command again with a different DNS server IP address to add multiple DNS servers.
Removing a DNS Server IP Address
To remove a DNS server IP address from your VMWare ESXi host, run the following command:
esxcli network ip dns server remove --server=22.214.171.124
- 126.96.36.199 is the DNS server IP you want to remove from your host.
Run the same command again with a different DNS server IP address to remove multiple DNS servers.
List DNS Server IP Addresses
To list the DNS server IP addresses that are now set on your VMWare ESXi host, run the following command whilst connected to your host in PuTTy:
esxcli network ip dns server list
This should now allow you to add and remove DNS server IP addresses from your VMWare ESXi host. However, this really should be an option in the new HTML5 version as Flash has now reached end of life.
If you are messing around with CLI commands on an ESXi host, then you really should know the below, however, these are genuine things that I have been asked in the past in the real world.
What does DNS stand for?
DNS stands for Domain Name System.
What does IP stand for?
IP stands for Internet Protocol.
What does ESXi stand for?
ESXi stands for ESX integrated.
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