Meltdown and Spectre

Meltdown and Spectre Recently two CPU microarchitecture vulnerabilities were discovered by Google’s Project Zero team and independently by other researchers: Meltdown and Spectre, which affect most modern computing devices. Both attacks involve speculative-execution side-channels. The Meltdown vulnerability, CVE-2017-5754, can potentially … Continue Reading

Stop Throwing Money At The Problem

There are a number solutions on the market that provide cost management for IT. Many of these solutions are aimed at the CFO or the financial group and do a good job for the needs of these users. However, at … Continue Reading

How to Optimize and Visualize Your Security Groups (Jump Host example)

In this post we review how to understand and visualize AWS security groups, and how to use it for identifing security vulnerabilities. What are AWS Security Groups? AWS Security Groups acts as a virtual firewall for your instance to control inbound and outbound … Continue Reading

Who is accessing your Elastic File System (EFS)?

In this post we review how to understand and visualize who is accessing your EFS, and how to use it for troubleshooting, cost allocation and system design. What is Elastic File System (EFS)? Amazon Elastic File System (Amazon EFS) provides … Continue Reading

Optimizing your AWS Availability-Zone Architecture, Cassandra Example

In a previous post (Availability-Zone Visibility) we explained how to make sure that your application has the right Availability-Zone strategy and prevent down time. We believe that budget is just another resource that goes through engineering trade-offs just like performance, capacity and others … Continue Reading

AWS Cost Saving: Show Me The Money.

AWS Cost Saving: We can do much more than just Reserved Instances.   There are many tools that will help you to view the overall status of your AWS costs,  some of them (like AWS Cost Explorer) will help you … Continue Reading

Get some Availability Zone visibility (before unleashing Chaos Monkey…)

AWS Availability Zones Amazon EC2 is hosted in multiple locations worldwide. These locations are composed of regions and Availability Zones. Each region is a separate geographic area. Each region has multiple, isolated locations known as AZ (Availability Zones). Amazon EC2 … Continue Reading

It’s 5 PM. Do You Know Where Your CPUs Are?

“T2 instances are designed to provide moderate baseline performance and the capability to burst to significantly higher performance as required by your workload. They are intended for workloads that don’t use the full CPU often or consistently, but occasionally need … Continue Reading

CMDB meets cloud: How to make it work

What is a CMDB A configuration management database (CMDB) is a repository that acts as a data warehouse for information technology (IT) installations. It holds data relating to a collection of IT assets (commonly referred to as configuration items (CI)), … Continue Reading

Monitoring direct and indirect ELB dependencies

Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances. It enables you to achieve fault tolerance in your applications, seamlessly providing the required amount of load balancing capacity needed to route application (or micro-service) traffic. Understanding … Continue Reading