External Load Balancers External load balancing is determined by the VPC subnet the ELB is placed in. If you create an Internet-facing load balancer, a public IP address will be assigned to the load balancer node. External load balancers are accessible from the public Internet and will always have a public IP address assigned to […]

Provisioning Redundant Connectivity between Your AWS and On-Premises Environments When connecting your on-premises environment to your AWS environment, it is highly recommended to make those connections redundant to sustain the failure of any single one of them. Large organizations are likely to use some form of private connectivity for security purposes; you will then end […]

Security Standards versus Security Controls versus Security Checks When enabling the Security Hub service, you were presented with several security standards that could be used to run checks against your environment. At the time of publishing, the security standards built into the Security Hub service are as follows: Security standards allow you to focus on […]

Building key performance indicators Before you wrap up these data visualization sections, you need to be introduced to key performance indicators, or KPIs for short. A KPI is usually a single value that describes the results of a business indicator, such as the churn rate, net promoter score (NPS), return on investment (ROI), and so […]

1.1  The Basic Architecture as Model-View-Controller (MVC) Salesforce is a cloud-based platform that provides customer relationship management (CRM) services to businesses of all sizes. Its architecture is based on the Model-View-Controller (MVC), which separates the data, business logic, and presentation layers of the cloud application. The platform is known for its flexibility, scalability, and customization […]

Managing EC2 AMIs An EC2 AMI, or Amazon Machine Image, is used to launch an EC2 instance. You can manage AMIs via the Management Console by navigating to Services > EC2 > Images > AMIs. Once there, the following options are available: Launch: Launch an EC2 instance from a selected AMI. EC2 Image Builder: Build […]

Security The application load balancer will terminate all encrypted TLS/SSL connections and allow end-to-end encryption between the client and target server. The incoming TLS session will be terminated on the ALB for inspection and processing. There will be a second connection created on the backend between the ALB and the target. In this case, the […]

Using Highly Available Network Connectivity for Your Public Endpoints Starting from the assumption that your internet-facing endpoints must be highly available, you have to make sure that whichever component you lay on their path is also highly available, whether it is a DNS service, a content delivery network (CDN), a load-balancing capability, or a gateway […]

Enabling AWS Security Hub AWS Security Hub can be enabled from the AWS Management Console. However, because Security Hub needs to have the AWS Config service enabled (and prefers to have it fully enabled, watching all resources), you will follow the following steps via CloudFormation in this walk-through as well – all via the Management […]

Visualizing distributions in your data Exploring the distribution of your feature is very important to understand some key characteristics of it, such as its skewness, mean, median, and quantiles. You can easily visualize skewness by plotting a histogram. This type of chart groups your data into bins or buckets and performs counts on top of […]