PowerCLI script to check VIBs on a host

I work in an environment where ESXi hosts require a lot of additional software to be installed.  Examples include a specific Cisco VEM module to be installed, the Trend DSA Filter driver etc.  A simple way to check what version or even if the software has been installed on the host is as follows.  This example will check if the Trend DSA Filter is installed.

(get-esxcli -vmhost hostname).software.vib.list() | where {$_.Name -eq "dvfilter-dsa"}

This will return information if the module is installed and give important information such as Versions etc.

PowerCLI to enable LockDown Mode on all hosts

Here is a quick and easy way to make sure that LockDown Mode is enabled on all your hosts using PowerCLI (if your environment dictates it)

(get-vmhost * | get-view) | foreach-object -process {$._EnterLockdownMode()}

That will go through every host and enable LockDown mode.  If you see the following error while running the script:

Exception calling "EnterLockdownMode" with "0" argument(s):  "The administrator permission has already been dsiabled on the host (except for the vim user)"

 It just means that the host already has that setting enabled and it can be ignored.