AWS LAMBDA – Here’s Everything You Need to Know!

What is Serverless?

To understand what AWS Lambda is, we have to first understand all about serverless architecture. The serverless architecture is a way to build and run applications and services without having to manage infrastructure. Your application still runs on servers. When you run a serverless application, you get the benefit of not worrying about OS setup, patching, or scaling of servers that you would have to consider when you run your application on a physical server.

Serverless applications or platforms have four characteristics:

  • No server management
  • Flexible scaling
  • No idle capacity
  • High availability
Continue reading “AWS LAMBDA – Here’s Everything You Need to Know!”

How to fix error “[SSL: CERTIFICATE_ VERIFY_FAILED] certificate verify failed” (_ssl.c:727)

While working with one of our banking sector clients (hybrid cloud ), we encountered the error:

fatal error: SSL validation failed for https://bucket_name.s3.ap-south-1.amazonaws.com/file_name  “[SSL: CERTIFICATE_ VERIFY_FAILED] certificate verify failed” (_ssl.c:727)

Scenario:

I was copying one file from s3 bucket to one of the newly launched servers x.x.x.x via AWS cli with below mentioned command.

Basics of Amazon Route 53 [Part -1]

What is Amazon Route 53?

Amazon Route 53 is a highly available and scalable authoritative cloud Domain Name System (DNS) service. It connects the Internet traffic to appropriate servers hosting the requested Web application. In addition, route 53 also facilitates health-checking and domain name registration of services. The design of route 53 aims at providing a highly reliable and cost-effective approach for routing end-users to Internet applications. Why the name Route 53! AWS Route 53 takes its name from the Port 53, which handles DNS for both the TCP and UDP traffic requests, the term Route may signify the routing, or perhaps the popular highway naming convention in the USA.

Continue reading “Basics of Amazon Route 53 [Part -1]”

Major Challenges of App Modernization!

Most businesses these days are adopting state-of-the-art cloud migration, infrastructure modernization and app modernization strategies to leverage benefits of improved agility, enhanced resilience, better scalability and faster time to market.

Here, we talk about what application modernization is and the major challenges that enterprises have to face while modernizing apps.

Continue reading “Major Challenges of App Modernization!”