Sunday, July 12, 2020

Bucket Policy vs IAM Policy vs S3 ACL !

IAM Policies and Bucket Policies and ACLs! Oh, My! (Controlling Access to S3 Resources)

One of most commonly asked question and very confusing. I came across a blog from AWS, with great explanation on same. So though of sharing:

IAM policies vs. S3 bucket policies

IAM policies specify what actions are allowed or denied on what AWS resources (e.g. allow ec2:TerminateInstance on the EC2 instance with instance_id=i-8b3620ec). You attach IAM policies to IAM users, groups, or roles, which are then subject to the permissions you’ve defined. In other words, IAM policies define what a principal can do in your AWS environment.

S3 bucket policies, on the other hand, are attached only to S3 buckets. S3 bucket policies specify what actions are allowed or denied for which principals on the bucket that the bucket policy is attached to (e.g. allow user Alice to PUT but not DELETE objects in the bucket). S3 bucket policies are a type of access control list

AWS Security Fundamentals

To start learning AWS Security, start with free digital fundamental training.AWS Security Fundamentals (2nd Edition):

Later to go more deep dive you can go for 3 days training on Security Engineering on AWS.,%2C%20networking%2C%20and%20database%20services.

Sunday, April 26, 2020

VMware vMotion Process !

You may know what is VMware vMotion and its use case. If not quick summary on VMware vMotion:
Live migration of virtual machines without service interruption, it can be manual call by admin and this can be called by VMware DRS for load balance.

For more details how exactly vMotion process in the backend, must watch below video.

Part 1: Introduction to the vMotion process

Part 2: vMotion Memory Copy - Under the Hood

Tuesday, April 21, 2020

Remote Exam Testing Is Here! AWS Exams !!!

You can take the AWS certification exam from your home now, for more details please follow below link:

Stay home, stay safe... 

Remote Exam Testing Is Here! VMware Exam

VMware Certification is pleased to announce that remote proctoring of its exams, delivered by Pearson VUE, will be available starting April 20, 2020. Remote proctoring allows you to take the exam from ANY secure location, and will be a permanent offering, regardless of the availability of in-person testing centers going forward. The cost per exam remains the same.

More details please use link below: