ESX is developed with a focus on strong security. VMware ensures security in the ESX environment and addresses system architecture from a security standpoint.

You can take measures to promote a secure environment for your ESX hosts, virtual machines, and iSCSI SANs. Consider network configuration planning from a security perspective and the steps that you can take to protect the components in your configuration from attack.

ESX handles user authentication and supports user and group permissions. In addition, you can encrypt connections to the vSphere Client and SDK.

VMware has basic security recommendations for using the service console, including how to use some of the service console’s built-in security features. The service console is a management interface to ESX and, as such, its security is critical. To protect the service console against unauthorized intrusion and misuse, VMware imposes constraints on several service console parameters, settings, and activities.

A series of ESX deployment scenarios can help you understand how best to employ the security features in your own deployment. Scenarios also illustrate some basic security recommendations that you can consider when creating and configuring virtual machines.