6.5.1

2 Right-click the virtual machine and click Edit Settings.
3 Select VM Options.
4 Click Advanced and click Edit Configuration.
5 Add or edit the following parameters.
Name Value
isolation.tools.diskWiper.disable
TRUE
isolation.tools.diskShrink.disabl
e
TRUE
6 Click OK.
When you disable this feature, you cannot shrink virtual machine disks when a datastore runs out of
space.
Virtual Machine Security Best Practices
Following virtual machine security best practices helps ensure the integrity of your vSphere deployment.
n
General Virtual Machine Protection
A virtual machine is, in most respects, the equivalent of a physical server. Employ the same security
measures in virtual machines that you do for physical systems.
n
Use Templates to Deploy Virtual Machines
When you manually install guest operating systems and applications on a virtual machine, you
introduce a risk of misconfiguration. By using a template to capture a hardened base operating
system image with no applications installed, you can ensure that all virtual machines are created
with a known baseline level of security.
n
Minimize Use of the Virtual Machine Console
The virtual machine console provides the same function for a virtual machine that a monitor provides
on a physical server. Users with access to the virtual machine console have access to virtual
machine power management and removable device connectivity controls. Console access might
therefore allow a malicious attack on a virtual machine.
n
Prevent Virtual Machines from Taking Over Resources
When one virtual machine consumes so much of the host resources that other virtual machines on
the host cannot perform their intended functions, a Denial of Service (DoS) might occur. To prevent a
virtual machine from causing a DoS, use host resource management features such as setting
Shares and using resource pools.
n
Disable Unnecessary Functions Inside Virtual Machines
Any service that is running in a virtual machine provides the potential for attack. By disabling system
components that are not necessary to support the application or service that is running on the
system, you reduce the potential.
vSphere Security
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