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How we solved a critical site-to-site VPN IP address conflict in AWS

Rishiraj Rathore

SRE @One2N

Spandan Ghosh

Content @One2N

How One2N solved a critical site-to-site VPN IP address conflict in AWS, including details on the problem, failed solutions, and the final parallel system approach that worked with automation.

July 15, 2025 | 7 min read

How we solved a critical site-to-site VPN IP address conflict in AWS

Rishiraj Rathore

SRE @One2N

Spandan Ghosh

Content @One2N

How One2N solved a critical site-to-site VPN IP address conflict in AWS, including details on the problem, failed solutions, and the final parallel system approach that worked with automation.

July 15, 2025 | 7 min read

How we solved a critical site-to-site VPN IP address conflict in AWS

Rishiraj Rathore

SRE @One2N

Spandan Ghosh

Content @One2N

How One2N solved a critical site-to-site VPN IP address conflict in AWS, including details on the problem, failed solutions, and the final parallel system approach that worked with automation.

July 15, 2025 | 7 min read

How we solved a critical site-to-site VPN IP address conflict in AWS

Rishiraj Rathore

SRE @One2N

Spandan Ghosh

Content @One2N

How One2N solved a critical site-to-site VPN IP address conflict in AWS, including details on the problem, failed solutions, and the final parallel system approach that worked with automation.

July 15, 2025 | 7 min read

How we solved a critical site-to-site VPN IP address conflict in AWS

Rishiraj Rathore

SRE @One2N

Spandan Ghosh

Content @One2N

How One2N solved a critical site-to-site VPN IP address conflict in AWS, including details on the problem, failed solutions, and the final parallel system approach that worked with automation.

July 15, 2025 | 7 min read

Best practices for upgrading EKS clusters

Aashi Rathore

SRE @One2N

Upgrade your Amazon EKS clusters with confidence. Learn best practices to avoid common mistakes, prepare your cluster, and execute a smooth upgrade process for improved performance, security, and cost savings.

March 25, 2025 | 5 min read

Best practices for upgrading EKS clusters

Aashi Rathore

SRE @One2N

Upgrade your Amazon EKS clusters with confidence. Learn best practices to avoid common mistakes, prepare your cluster, and execute a smooth upgrade process for improved performance, security, and cost savings.

March 25, 2025 | 5 min read

Best practices for upgrading EKS clusters

Aashi Rathore

SRE @One2N

Upgrade your Amazon EKS clusters with confidence. Learn best practices to avoid common mistakes, prepare your cluster, and execute a smooth upgrade process for improved performance, security, and cost savings.

March 25, 2025 | 5 min read

Best practices for upgrading EKS clusters

Aashi Rathore

SRE @One2N

Upgrade your Amazon EKS clusters with confidence. Learn best practices to avoid common mistakes, prepare your cluster, and execute a smooth upgrade process for improved performance, security, and cost savings.

March 25, 2025 | 5 min read

Best practices for upgrading EKS clusters

Aashi Rathore

SRE @One2N

Upgrade your Amazon EKS clusters with confidence. Learn best practices to avoid common mistakes, prepare your cluster, and execute a smooth upgrade process for improved performance, security, and cost savings.

March 25, 2025 | 5 min read

How to port-forward from EC2 instances without the need for opening any SSH ports or creating Bastion hosts

Harsh Mishra

SRE @One2N

Learn how to port-forward from EC2 instances in private subnets without opening SSH ports or setting up bastion hosts. This AWS SSM Session Manager guide provides a secure, cost-effective, and simple solution for EC2 access and port forwarding.

March 10, 2025 | 5 min read

How to port-forward from EC2 instances without the need for opening any SSH ports or creating Bastion hosts

Harsh Mishra

SRE @One2N

Learn how to port-forward from EC2 instances in private subnets without opening SSH ports or setting up bastion hosts. This AWS SSM Session Manager guide provides a secure, cost-effective, and simple solution for EC2 access and port forwarding.

March 10, 2025 | 5 min read

How to port-forward from EC2 instances without the need for opening any SSH ports or creating Bastion hosts

Harsh Mishra

SRE @One2N

Learn how to port-forward from EC2 instances in private subnets without opening SSH ports or setting up bastion hosts. This AWS SSM Session Manager guide provides a secure, cost-effective, and simple solution for EC2 access and port forwarding.

March 10, 2025 | 5 min read

How to port-forward from EC2 instances without the need for opening any SSH ports or creating Bastion hosts

Harsh Mishra

SRE @One2N

Learn how to port-forward from EC2 instances in private subnets without opening SSH ports or setting up bastion hosts. This AWS SSM Session Manager guide provides a secure, cost-effective, and simple solution for EC2 access and port forwarding.

March 10, 2025 | 5 min read

How to port-forward from EC2 instances without the need for opening any SSH ports or creating Bastion hosts

Harsh Mishra

SRE @One2N

Learn how to port-forward from EC2 instances in private subnets without opening SSH ports or setting up bastion hosts. This AWS SSM Session Manager guide provides a secure, cost-effective, and simple solution for EC2 access and port forwarding.

March 10, 2025 | 5 min read

Gotchas to avoid when using spot instances in production

Aashi Rathore

SRE @One2N

In this post, we’ll explore the fundamentals of spot instances, the risks associated with their use in production, and key strategies to ensure seamless operations.

February 24, 2025 | 4 min read

Gotchas to avoid when using spot instances in production

Aashi Rathore

SRE @One2N

In this post, we’ll explore the fundamentals of spot instances, the risks associated with their use in production, and key strategies to ensure seamless operations.

February 24, 2025 | 4 min read

Gotchas to avoid when using spot instances in production

Aashi Rathore

SRE @One2N

In this post, we’ll explore the fundamentals of spot instances, the risks associated with their use in production, and key strategies to ensure seamless operations.

February 24, 2025 | 4 min read

Gotchas to avoid when using spot instances in production

Aashi Rathore

SRE @One2N

In this post, we’ll explore the fundamentals of spot instances, the risks associated with their use in production, and key strategies to ensure seamless operations.

February 24, 2025 | 4 min read

Gotchas to avoid when using spot instances in production

Aashi Rathore

SRE @One2N

In this post, we’ll explore the fundamentals of spot instances, the risks associated with their use in production, and key strategies to ensure seamless operations.

February 24, 2025 | 4 min read

Accessing private EC2 Instances without keys or passwords

Adarsh Raj

SRE

We explore how to securely access private EC2 instances without SSH keys or passwords using AWS Systems Manager Session Manager, especially in large-scale environments.

December 3, 2024 | 7 min read

Accessing private EC2 Instances without keys or passwords

Adarsh Raj

SRE

We explore how to securely access private EC2 instances without SSH keys or passwords using AWS Systems Manager Session Manager, especially in large-scale environments.

December 3, 2024 | 7 min read

Accessing private EC2 Instances without keys or passwords

Adarsh Raj

SRE

We explore how to securely access private EC2 instances without SSH keys or passwords using AWS Systems Manager Session Manager, especially in large-scale environments.

December 3, 2024 | 7 min read

Accessing private EC2 Instances without keys or passwords

Adarsh Raj

SRE

We explore how to securely access private EC2 instances without SSH keys or passwords using AWS Systems Manager Session Manager, especially in large-scale environments.

December 3, 2024 | 7 min read

Accessing private EC2 Instances without keys or passwords

Adarsh Raj

SRE

We explore how to securely access private EC2 instances without SSH keys or passwords using AWS Systems Manager Session Manager, especially in large-scale environments.

December 3, 2024 | 7 min read

Setting up CloudWatch alerts for EKS clusters: insights and solutions

Mihir Bhagwat

SRE @One2N

Explore the process of setting up CloudWatch alerts for specific scenarios while managing a production AWS EKS instance, highlighting key insights and practical solutions.

August 30, 2024 | 6 min read

Setting up CloudWatch alerts for EKS clusters: insights and solutions

Mihir Bhagwat

SRE @One2N

Explore the process of setting up CloudWatch alerts for specific scenarios while managing a production AWS EKS instance, highlighting key insights and practical solutions.

August 30, 2024 | 6 min read

Setting up CloudWatch alerts for EKS clusters: insights and solutions

Mihir Bhagwat

SRE @One2N

Explore the process of setting up CloudWatch alerts for specific scenarios while managing a production AWS EKS instance, highlighting key insights and practical solutions.

August 30, 2024 | 6 min read

Setting up CloudWatch alerts for EKS clusters: insights and solutions

Mihir Bhagwat

SRE @One2N

Explore the process of setting up CloudWatch alerts for specific scenarios while managing a production AWS EKS instance, highlighting key insights and practical solutions.

August 30, 2024 | 6 min read

Setting up CloudWatch alerts for EKS clusters: insights and solutions

Mihir Bhagwat

SRE @One2N

Explore the process of setting up CloudWatch alerts for specific scenarios while managing a production AWS EKS instance, highlighting key insights and practical solutions.

August 30, 2024 | 6 min read

How to make SSO auth work for Golang AWS SDK

Chinmay Somani

SRE

Learn how to make AWS SSO authentication work with the Golang AWS SDK. Covers upgrading from SDK v1 to v2, handling SSO credentials, and ensuring a smooth migration.

October 25, 2023 | 7 min read

How to make SSO auth work for Golang AWS SDK

Chinmay Somani

SRE

Learn how to make AWS SSO authentication work with the Golang AWS SDK. Covers upgrading from SDK v1 to v2, handling SSO credentials, and ensuring a smooth migration.

October 25, 2023 | 7 min read

How to make SSO auth work for Golang AWS SDK

Chinmay Somani

SRE

Learn how to make AWS SSO authentication work with the Golang AWS SDK. Covers upgrading from SDK v1 to v2, handling SSO credentials, and ensuring a smooth migration.

October 25, 2023 | 7 min read

How to make SSO auth work for Golang AWS SDK

Chinmay Somani

SRE

Learn how to make AWS SSO authentication work with the Golang AWS SDK. Covers upgrading from SDK v1 to v2, handling SSO credentials, and ensuring a smooth migration.

October 25, 2023 | 7 min read

How to make SSO auth work for Golang AWS SDK

Chinmay Somani

SRE

Learn how to make AWS SSO authentication work with the Golang AWS SDK. Covers upgrading from SDK v1 to v2, handling SSO credentials, and ensuring a smooth migration.

October 25, 2023 | 7 min read

Automate RDS Secret management using AWS Secret Manager

Siddharth Shashikar

SRE @One2N

Automate secure management of RDS credentials using AWS Secrets Manager. Explore different methods for storing and rotating RDS secrets, and learn how to implement an automated solution with Terraform.

July 14, 2023 | 8 min read

Automate RDS Secret management using AWS Secret Manager

Siddharth Shashikar

SRE @One2N

Automate secure management of RDS credentials using AWS Secrets Manager. Explore different methods for storing and rotating RDS secrets, and learn how to implement an automated solution with Terraform.

July 14, 2023 | 8 min read

Automate RDS Secret management using AWS Secret Manager

Siddharth Shashikar

SRE @One2N

Automate secure management of RDS credentials using AWS Secrets Manager. Explore different methods for storing and rotating RDS secrets, and learn how to implement an automated solution with Terraform.

July 14, 2023 | 8 min read

Automate RDS Secret management using AWS Secret Manager

Siddharth Shashikar

SRE @One2N

Automate secure management of RDS credentials using AWS Secrets Manager. Explore different methods for storing and rotating RDS secrets, and learn how to implement an automated solution with Terraform.

July 14, 2023 | 8 min read

Automate RDS Secret management using AWS Secret Manager

Siddharth Shashikar

SRE @One2N

Automate secure management of RDS credentials using AWS Secrets Manager. Explore different methods for storing and rotating RDS secrets, and learn how to implement an automated solution with Terraform.

July 14, 2023 | 8 min read

Case Studies

How we saved more than 42% on AWS Infrastructure Costs

The client a no-code platform to build mobile apps for a Shopify store. The platform is hosted on AWS and serves customers across the globe. Operational for 7+ years and have a 30+ member dev team with not much DevOps expertise in the team. Problem Statement. Reduce existing cloud infrastructure cost of $25k/month without affecting the business metrics and uptime. Implement cloud governance and infrastructure access policies for security. Continuous billing monitoring, alerts and deeper insights into cost allocations..

42%

Cost reduction for AWS Compute service

56%

Cost reduction for AWS RDS

90%

Cost reduction for AWS Data transfer

How we saved more than 42% on AWS Infrastructure Costs

42%

Cost reduction for AWS Compute service

56%

Cost reduction for AWS RDS

90%

Cost reduction for AWS Data transfer

How we saved more than 42% on AWS Infrastructure Costs

42%

Cost reduction for AWS Compute service

56%

Cost reduction for AWS RDS

90%

Cost reduction for AWS Data transfer

How we saved more than 42% on AWS Infrastructure Costs

42%

Cost reduction for AWS Compute service

56%

Cost reduction for AWS RDS

90%

Cost reduction for AWS Data transfer

How we saved more than 42% on AWS Infrastructure Costs

42%

Cost reduction for AWS Compute service

56%

Cost reduction for AWS RDS

90%

Cost reduction for AWS Data transfer

AutoScaling eKYC Machine Learning workloads to 2M+ req/day

Cloud monthly costs were reduced to a maximum of $10k per month (90% savings over predicted costs without the Autoscaler). The solution has been live and running successfully on production for 2+ years. SLA for uptime and response time are met during this period.