Archives for AWS - Page 4
Troubleshooting RDS AWS Connectivity
This is a quick post to help diagnose RDS AWS Connectivity Issues - Also read (Getting Data into AWS' RDS and also the official AWS RDS Oracle Full doc)…
AWS Security Architect Level Audits on AWS Accounts
As an AWS Security Architect, one of your first tasks would be to go into your customer's account (or multiple AWS accounts) and look around for security specific events created…
The GCP Project Boundary, Trust Boundary and the Principle of Least Privilege
Projects are holders of resources, akin to Accounts in AWS. While AWS accounts are MUCH more than simple resource containers, this is still the best way to visualize the correspondence…
Letsencrypt Certbot on Amazon ec2 linux – LetsEncrypt Client Install – What a headache
At first glance, finding AWS's exact documentation on how to get this working, may excite you. Until you find that you encounter the same error that you would get were…
Putty to log in to AWS EC2
It took me a few clicks to get putty working with an ec2 instance. This assumes you have putty and puttyGen installed locally. In putty UI - Session --> IP…
Carving out address spaces for Subnets and VPNs – AWS vs Azure
A Sample break up of addresses Traffic flows from the internet to an ALB to a Firewall (F5, Palo Alto ....) appliance. And into your application subnets (WEB subnet, APP…
What is a VPC Endpoint and where does it live?
What is a VPC endpoint and why do we need one? If you had an application hosted on an ec2 instance - and that application needed to call another service…
Network and VM isolation in GCP versus AWS
Overview Not all cloud resources require an underlying physical network. For example, an s3 bucket in AWS exists outside the VPC construct (but can be accessed by instances within a…
Billing Accounts in AWS and GCP
AWS Billing Account In AWS, when you create an account, it contains a Billing Account. Sub Accounts can be added for recreating an organizational hierarchy. Each sub-account comes with it's…
Routes and Route Tables – AWS vs GCP
What is a Route? A route is an instruction for directing traffic. It is applied to an entire set of IP addresses - typically to an entire VPC or a…