Saturday, April 14, 2018

Netiquette IQ Blog Of 4/14/2018





Zombie VM from whatis .com
A zombie VM is a virtual machine that is created, often for a particular purpose, and is forgotten when it is no longer needed for that purpose. As a result, the VM continues to consume resources while performing no useful work. The proliferation of zombie VMs in a data center is one of the main causes of virtualization sprawl.
Virtual machines can be created quickly and easily and only use a very small portion of the physical infrastructure's resources to run. When virtual instances are created faster than they are removed, however, the result is virtualization sprawl. The irony of virtualization sprawl is that it can cancel out the benefits that make virtualization attractive and cost-effective in the first place, costing the company money by tying up operating system licenses, servers and database resources without adding any value.
Most zombie VMs are simply temporary virtual servers that have been forgotten due to lax tracking procedures. Ideally, the creation of each VM should be documented, along with its purpose and owner. When a VM is no longer required, it should be removed. Once virtualization sprawl has occurred, it becomes necessary to differentiate zombie VMs from the productive ones. Indications of a zombie VM include an absence of recent support tickets and low CPU, network and disk utilization.

Zombie prevention requires both policies and software tools. Management policies should be put in place to guide the creation and retention of VMs and storage instances. Then, software tools can be used to identify VM instance owners, report on recent usage and specify how long resources have been idle. Ideally, VM governance tools will raise an alert when a machine rests unused for a defined period of time and automatically spin down the zombie and recover its licenses.
The zombie VM's physical counterpart in the data center is the zombie server.
National Cyber Awareness System:

04/09/2018 06:29 AM EDT

Original release date: April 09, 2018
The US-CERT Cyber Security Bulletin provides a summary of new vulnerabilities that have been recorded by the National Institute of Standards and Technology (NIST) National Vulnerability Database (NVD) in the past week. The NVD is sponsored by the Department of Homeland Security (DHS) National Cybersecurity and Communications Integration Center (NCCIC) / United States Computer Emergency Readiness Team (US-CERT). For modified or updated entries, please visit the NVD, which contains historical vulnerability information.
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In addition to this blog, Netiquette IQ has a website with great assets which are being added to on a regular basis. I have authored the premiere book on Netiquette, “Netiquette IQ - A Comprehensive Guide to Improve, Enhance and Add Power to Your Email". My new book, “You’re Hired! Super Charge Your Email Skills in 60 Minutes. . . And Get That Job!” has just been published and will be followed by a trilogy of books on Netiquette for young people. You can view my profile, reviews of the book and content excerpts at:


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