Configure IP Address and Hostname in ESXi Server

You need to have physical access to the server to configure IP address in ESXi server. Press F2 to log in to Direct Console User Interface (DCUI) of ESXi server. You can configure DNS and hostname using vSphere client. 

 Enter the password for root user account. Press [Enter]. You will be presented with list of system customization list as shown below.

 As you can see above, the IP address 192.168.0.22 was acquired from DHCP server. Select Configure Management Network option and press [Enter].

Here, you can configure IPv4, IPv6, DNS, DNS suffixes and VLAN. To configure IPv4, select IPv4 Configuration option and press [Enter].

Choose option, set static IPv4 address and network configuration. Press [Space Bar] to make the selection. Now, type IP address, subnet mask and gateway as shown above and press [Enter]. Then press [Esc] key to go back.

You will be asked to confirm the changes and restart the network. Press [Y] to restart the management network.

Now, select DNS Configuration option and press [Enter].

Configure primary and alternate DNS server and hostname. Press [Enter]. Press [Esc] to go back, you will again be asked to confirm the changes and restart management network.

As you can see above IP address and hostname have now changed. In this way you can configure IP address and hostname in ESXi server.