6.0.1

You can limit the number of log files for all virtual machines on a host by
editing the /etc/vmware/config file. If the vmx.log.keepOld property is not
defined in the file, you can add it. For example, to keep ten log files for each
virtual machine, add the following to /etc/vmware/config:
vmx.log.keepOld = "10"
You can also use a PowerCLI script to change this property on all the virtual
machines on a host.
A more extreme strategy is to disable logging altogether for the virtual
machine. Disabling logging makes troubleshooting challenging and support
difficult. Do not consider disabling logging unless the log file rotation
approach proves insufficient. Use the following .vmx setting to disable
logging altogether:
logging = "FALSE"
VMX file size
By default the configuration file is limited to a size of 1MB because
uncontrolled size for the file can lead to a denial of service if the datastore
runs out of disk space. Informational messages are sometimes sent from the
virtual machine to the .vmx file. These setinfo messages define virtual
machine characteristics or identifiers by writing name-value pairs to the file.
You might need to increase the size of the file if large amounts of custom
information must be stored in the file. The property name is
tools.setInfo.sizeLimit, and you specify the value in kilobytes. Retain the
following .vmx setting:
tools.setInfo.sizeLimit = "1048576"
Sending performance
counters into PerfMon
You can integrate virtual machine performance counters for CPU and
memory into PerfMon for Linux and Microsoft Windows guest operating
systems. This feature makes detailed information about the physical host
available to the guest operating system. An adversary could potentially use
this information to inform further attacks on the host. By default this feature
is disabled. Retain the following .vmx setting to prevent host information
from being sent to the virtual machine:
tools.guestlib.enableHostInfo = "FALSE"
This setting blocks some but not all metrics. If you set this property to
FALSE, the following metrics are blocked:
n
GUESTLIB_HOST_CPU_NUM_CORES
n
GUESTLIB_HOST_CPU_USED_MS
n
GUESTLIB_HOST_MEM_SWAPPED_MB
n
GUESTLIB_HOST_MEM_SHARED_MB
n
GUESTLIB_HOST_MEM_USED_MB
n
GUESTLIB_HOST_MEM_PHYS_MB
n
GUESTLIB_HOST_MEM_PHYS_FREE_MB
n
GUESTLIB_HOST_MEM_KERN_OVHD_MB
n
GUESTLIB_HOST_MEM_MAPPED_MB
Chapter 11 VMware Tools Components, Configuration Options, and Security Requirements
VMware, Inc. 211