AWS AUDITING, MONITORING AND NOTIFICATION SERVICES AWS SNS SNS is a fast, flexibility, fully managed push notification service Its a web service that coordinates and manages the delivery or sending of messages (from the cloud) to subscribing endpoints or clients. It allows for sending individual messages or fan-out messages to…

AWS: Amazon Aurora Aurora Read Replicas Up to 15 Aurora Replicas can be distributed across the Availability Zones DB cluster volume is made up of multiple copies of the data for the DB cluster The data in the cluster volume is represented as a single, logical volume to the primary…

AWS: Amazon Aurora

AWS: RDS (Relational Database Service) Manual Backup (Snapshots) Are not used for point in time recovery Are user initiated, not RDS service initiated Stored in Amazon S3 They are not deleted automatically when you delete your RDS instance, rather, they wills tay on S3 until you go ahead and delete…

AWS: RDS (Relational Database Service) It is an fully managed Relational DB Engine service where aws is responsible for: Security and patching of the DB instance Automated backup for your DB instances Software updates for the DB engine Easy scaling for storage and compute as required If selected, Multi-AZ with…

AWS:Introduction of Databases What is Database? Data access (reads and writes) is needed on a recruiting basis. It allows multiple user access for reads and writes It safeguards against unintentional mistakes, or unexpected power or hardware failure, and can recover the last known state. Relation Database: A relation database is…

AWS: Auto Scaling 2nd Part ASG Health Checks Auto Scaling classifies its EC2 instances health status as either Healthy or Unhealthy. By default, As uses EC2 Status Checks only to determince the health status of an instance. When you hve one or more ELBs defined with the AS Group, you…

AWS: Auto Scaling It is an AWS feature that allows your AWS component needs (EC2 instances fleet) to grow or shrink depending on your workload requirements. Auto scaling ensures that you have the right number of AWS EC2 instances for your needs at all times. Auto Scaling helps you save…

Network Load Balancer 2nd part Client Source IP address Preservation If you use Instance ID as target type, NLB preserves the clients source IP addresses, and provide them to the targets. On the other hand, If you use the IP address s the target, the source IP addresses are the…