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How to Access AWS S3 Buckets from EC2 Instances

How to Access AWS S3 Buckets from EC2 Instances

What is the S3 Bucket? AWS S3 bucket is a directory/folder where we can store any kind of data except application or OS. Why AWS called S3 bucket for directory/folder because bucket has " Sx3" Simple Storage Service. In S3 bucket we can store any...

AWS EC2 Instance Scheduler – Part 2

AWS EC2 Instance Scheduler – Part 2

This is the second part of Instance Scheduler where I am going to explain how a lambda function which when invoked by CloudWatch rule, triggers a SNS notification which sends me an email. Every time the specified instance changes state (start,...

AWS EC2 Instance Scheduler – Part 2

AWS EC2 Instance Scheduler – Part 1

One fine day at work, I was playing around with "Cloud Custodian '' which is a tool to schedule instances on-and-off during a certain time provided. For example, we would want to have those instances running between 9am to 5pm weekdays. This helps...

Amazon RDS on VMware

Amazon RDS on VMware

Brief overview of Amazon RDS on VMwareAmazon and VMware have jointly partnered to bring the battle tested Amazon RDS service in private data centres that has VMware vSphere clusters running. There is no doubt that VMware is the de facto Hypervisor...

How To Rename a Local and Remote Git Branch ?

How To Rename a Local and Remote Git Branch ?

In software development, developers use the Version Control Systems(VCS) to manage and organize their team work in a central repository. According to the latest Stack Overflow Developer Survey 2017, 69.2 percent of developers use Git, to define...

VM vs Container

VM vs Container

Virtualization Virtualization is a technology which enables creation of multiple virtual computing environments on a physical computing machine. As opposed to traditional methods where a physical machine is used for a single server, virtualization...

Digging deep into dig command

Digging deep into dig command

DIG stands for Domain Information Groper. As the name suggests it is used to grab information from a DNS server. It is one of the most powerful yet most underrated utility. Sometimes we get overwhelmed by all the information that is shown and...

Things that you should know about DNS

Things that you should know about DNS

In this article I will explain you things that you should know about DNS. We think we all know what DNS is and how it works, but we get sloppy at times. So, I decided to dig deep into DNS. I decided to write what I learned. I may not be able to...

Networking Architecture – Hybrid

Networking Architecture – Hybrid

Yet another interesting architecture including AWS services like AWS Site-to-Site VPN, PrivateLink and Transit Gateway. This solution enables connectivity between a Corporate Data Center and workloads deployed in AWS Environment. Let’s say we want...

What to do when you can’t chmod chmod?

What to do when you can’t chmod chmod?

When you cannot chmod chmod? What to do? This might help to re-instate permission back. Here are following techniques where you can use chmod to change permission when chmod itself is not executable. Using rsync: The first technique is to use rsync...

How to Access AWS S3 Buckets from EC2 Instances

How to Access AWS S3 Buckets from EC2 Instances

What is the S3 Bucket? AWS S3 bucket is a directory/folder where we can store any kind of data except application or OS. Why AWS called S3 bucket for directory/folder because bucket has " Sx3" Simple Storage Service. In S3 bucket we can store any...

AWS EC2 Instance Scheduler – Part 2

AWS EC2 Instance Scheduler – Part 2

This is the second part of Instance Scheduler where I am going to explain how a lambda function which when invoked by CloudWatch rule, triggers a SNS notification which sends me an email. Every time the specified instance changes state (start,...

AWS EC2 Instance Scheduler – Part 2

AWS EC2 Instance Scheduler – Part 1

One fine day at work, I was playing around with "Cloud Custodian '' which is a tool to schedule instances on-and-off during a certain time provided. For example, we would want to have those instances running between 9am to 5pm weekdays. This helps...

Amazon RDS on VMware

Amazon RDS on VMware

Brief overview of Amazon RDS on VMwareAmazon and VMware have jointly partnered to bring the battle tested Amazon RDS service in private data centres that has VMware vSphere clusters running. There is no doubt that VMware is the de facto Hypervisor...

How To Rename a Local and Remote Git Branch ?

How To Rename a Local and Remote Git Branch ?

In software development, developers use the Version Control Systems(VCS) to manage and organize their team work in a central repository. According to the latest Stack Overflow Developer Survey 2017, 69.2 percent of developers use Git, to define...

VM vs Container

VM vs Container

Virtualization Virtualization is a technology which enables creation of multiple virtual computing environments on a physical computing machine. As opposed to traditional methods where a physical machine is used for a single server, virtualization...

Digging deep into dig command

Digging deep into dig command

DIG stands for Domain Information Groper. As the name suggests it is used to grab information from a DNS server. It is one of the most powerful yet most underrated utility. Sometimes we get overwhelmed by all the information that is shown and...

Things that you should know about DNS

Things that you should know about DNS

In this article I will explain you things that you should know about DNS. We think we all know what DNS is and how it works, but we get sloppy at times. So, I decided to dig deep into DNS. I decided to write what I learned. I may not be able to...

Networking Architecture – Hybrid

Networking Architecture – Hybrid

Yet another interesting architecture including AWS services like AWS Site-to-Site VPN, PrivateLink and Transit Gateway. This solution enables connectivity between a Corporate Data Center and workloads deployed in AWS Environment. Let’s say we want...

What to do when you can’t chmod chmod?

What to do when you can’t chmod chmod?

When you cannot chmod chmod? What to do? This might help to re-instate permission back. Here are following techniques where you can use chmod to change permission when chmod itself is not executable. Using rsync: The first technique is to use rsync...