Configuring the host firewall

A host firewall is a VMware vSphere feature to protect the host against attacks. The host firewall allows or blocks traffic to and from specific host services. You can use PowerCLI to configure the host firewall.

To get a list of all of the PowerCLI cmdlets that you can use to configure a host firewall, type:

PowerCLI C:\> Get-Command -Noun VMHostFirewall*

CommandType     Name
-----------     ----
Cmdlet          Get-VMHostFirewallDefaultPolicy
Cmdlet          Get-VMHostFirewallException
Cmdlet          Set-VMHostFirewallDefaultPolicy
Cmdlet          Set-VMHostFirewallException

Getting the host firewall default policy

To get the host firewall default policy of a host, you have to use the Get-VMHostFirewallDefaultPolicy cmdlet.

The syntax of the Get-VMHostFirewallDefaultPolicy cmdlet is:

Get-VMHostFirewallDefaultPolicy [-VMHost] <VMHost[]> [[-Server] <VIServer[]>] [<CommonParameters>]

Let's first get the host firewall default policy for a host...