NetApp
7-mode/HA pair/V-Series : Configuration : Network : Network Files : Configuring network files : Editing a host

Editing a host
You can use the Edit Host dialog box to change the IP address or host name entries in the /etc/hosts file.
Steps 
1.
From the Home tab, double-click the appropriate storage system to display a subtree of management features.
2.
Click Configuration > Network > Network Files.
3.
If the appropriate tab is not displayed, click Etc Hosts.
4.
Select a host configuration from the list and click Edit.
5.
Change any of the fields for this host and click Edit.
6.
You can use the Etc Hosts tab to verify the changes you made to the selected host.