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vSphere Troubleshooting Guide
Troubleshooting complex virtualization technology is something all VMware users will have to face at some point. It requires an understanding of how various components fit together and finding a place to start is not easy. Thankfully, VMware vExpert Ryan Birk is here to help with this eBook preparing you for any problems you may encounter along the way.

This eBook explains how to identify problems with vSphere and how to solve them. Before we begin, we need to start off with an introduction to a few things that will make life easier. We’ll start with a troubleshooting methodology and how to gather logs. After that, we’ll break this eBook into the following sections: Installation, Virtual Machines, Networking, Storage, vCenter/ESXi and Clustering.

ESXi and vSphere problems arise from many different places, but they generally fall into one of these categories: Hardware issues, Resource contention, Network attacks, Software bugs, and Configuration problems.

A typical troubleshooting process contains several tasks: 1. Define the problem and gather information. 2. Identify what is causing the problem. 3. Fix the problem, implement a fix.

One of the first things you should try to do when experiencing a problem with a host, is try to reproduce the issue. If you can find a way to reproduce it, you have a great way to validate that the issue is resolved when you do fix it. It can be helpful as well to take a benchmark of your systems before they are implemented into a production environment. If you know HOW they should be running, it’s easier to pinpoint a problem.

You should decide if it’s best to work from a “Top Down” or “Bottom Up” approach to determine the root cause. Guest OS Level issues typically cause a large amount of problems. Let’s face it, some of the applications we use are not perfect. They get the job done but they utilize a lot of memory doing it.

In terms of virtual machine level issues, is it possible that you could have a limit or share value that’s misconfigured? At the ESXi Host Level, you could need additional resources. It’s hard to believe sometimes, but you might need another host to help with load!

Once you have identified the root cause, you should assess the impact of the problem on your day to day operations. When and what type of fix should you implement? A short-term one or a long-term solution? Assess the impact of your solution on daily operations. Short-term solution: Implement a quick workaround. Long-term solution: Reconfiguration of a virtual machine or host.

Now that the basics have been covered, download the eBook to discover how to put this theory into practice!

Confronting modern stealth
How did we go from train robberies to complex, multi-billion-dollar cybercrimes? The escalation in the sophistication of cybercriminal techniques, which overcome traditional cybersecurity and wreak havoc without leaving a trace, is dizzying. Explore the methods of defense created to defend against evasive attacks, then find out how Kaspersky’s sandboxing, endpoint detection and response, and endpoint protection technologies can keep you secure—even if you lack the resources or talent.
Explore the dizzying escalation in the sophistication of cybercriminal techniques, which overcome traditional cybersecurity and wreak havoc without leaving a trace. Then discover the methods of defense created to stop these evasive attacks.

Problem:
Fileless threats challenge businesses with traditional endpoint solutions because they lack a specific file to target. They might be stored in WMI subscriptions or the registry, or execute directly in the memory without being saved on disk. These types of attack are ten times more likely to succeed than file-based attacks.

Solution:
Kaspersky Endpoint Security for Business goes beyond file analysis to analyze behavior in your environment. While its behavioral detection technology runs continuous proactive machine learning processes, its exploit prevention technology blocks attempts by malware to exploit software vulnerabilities.

Problem:
The talent shortage is real. While cybercriminals are continuously adding to their skillset, businesses either can’t afford (or have trouble recruiting and retaining) cybersecurity experts.

Solution:
Kaspersky Sandbox acts as a bridge between overwhelmed IT teams and industry-leading security analysis. It relieves IT pressure by automatically blocking complex threats at the workstation level so they can be analyzed and dealt with properly in time.


Problem:
Advanced Persistent Threats (APTs) expand laterally from device to device and can put an organization in a constant state of attack.

Solution:
Endpoint Detection and Response (EDR) stops APTs in their tracks with a range of very specific capabilities, which can be grouped into two categories: visibility (visualizing all endpoints, context and intel) and analysis (analyzing multiple verdicts as a single incident).
    
Attack the latest threats with a holistic approach including tightly integrated solutions like Kaspersky Endpoint Detection and Response and Kaspersky Sandbox, which integrate seamlessly with Kaspersky Endpoint Protection for Business.
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