vSphere Virtual Machine Administration - Documentation - VMware
vSphere Virtual Machine Administration - Documentation - VMware
vSphere Virtual Machine Administration - Documentation - VMware
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<strong>vSphere</strong> <strong>Virtual</strong> <strong>Machine</strong> <strong>Administration</strong><br />
Creating and Managing Customization Specifications in the <strong>vSphere</strong> Web Client<br />
You can create and manage customization specifications for Windows and Linux guest operating systems.<br />
Customization specifications are XML files that contain guest operating system settings for virtual machines.<br />
When you apply a specification to the guest operating system during virtual machine cloning or deployment,<br />
you prevent conflicts that might result if you deploy virtual machines with identical settings, such as duplicate<br />
computer names.<br />
vCenter Server saves the customized configuration parameters in the vCenter Server database. If the<br />
customization settings are saved, the administrator and domain administrator passwords are stored in<br />
encrypted format in the database. Because the certificate used to encrypt the passwords is unique to each<br />
vCenter Server system, if you reinstall vCenter Server or attach a new instance of the server to the database,<br />
the encrypted passwords become invalid. You must reenter the passwords before you can use them.<br />
Create a Customization Specification for Linux in the <strong>vSphere</strong> Web Client<br />
Use the Guest Customization wizard to save guest operating system settings in a specification that you can<br />
apply when cloning virtual machines or deploying from templates.<br />
Prerequisites<br />
Ensure that all requirements for customization are met. See “Guest Operating System Customization<br />
Requirements,” on page 79.<br />
Procedure<br />
1 From the <strong>vSphere</strong> Client Home inventory page, select Rules and Profiles > Customization Specification<br />
Manager.<br />
2 Click the Create a New specification icon.<br />
3 Select Linux from the Target VM Operating System drop-down menu.<br />
4 On the Set Registration Information page, type the virtual machine owner’s name and organization and<br />
click Next.<br />
5 Enter the guest operating system's computer name.<br />
The operating system uses this name to identify itself on the network. On Linux systems, it is called the<br />
host name.<br />
Option Action<br />
Enter a name a Type a name.<br />
The name can contain alphanumeric characters and the hyphen (-)<br />
character. It cannot contain periods (.) or blank spaces and cannot be<br />
made up of digits only. Names are not case-sensitive.<br />
b (Optional) To ensure that the name is unique, select Append a numeric<br />
value to ensure uniqueness. This action appends a hyphen followed by<br />
a numeric value to the virtual machine name. The name is truncated if<br />
it exceeds 63 characters when combined with the numeric value.<br />
Use the virtual machine name The computer name that vCenter Server creates is identical to the name of<br />
the virtual machine on which the guest operating system is running. If the<br />
name exceeds 63 characters, it is truncated.<br />
Enter a name in the Clone/Deploy<br />
wizard<br />
Generate a name using the custom<br />
application configured with vCenter<br />
Server<br />
6 Enter the Domain Name for the computer and click Next.<br />
The <strong>vSphere</strong> Client prompts you to enter a name after the cloning or<br />
deployment is complete.<br />
Enter a parameter that can be passed to the custom application.<br />
50 <strong>VMware</strong>, Inc.