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Blogs

Hardening Kubernetes Security with Istio Ambient Mode on Flat Networks

Harshwardhan Mehrotra

SRE @One2N

Spandan Ghosh

Content @One2N

Learn how One2N used Istio Ambient mode to enforce zero-trust security on a flat EKS Hybrid network - with mTLS, SPIFFE identity, egress control, and NetworkPolicies.

Debugging KubeVPN's DNS resolution failures

Nilesh D

Software Engineer @One2N

Chinmay Naik

CEO @One2N

The other day, I was trying to access the Go documentation at go.dev, but the page wouldn't load. Not on Chrome, not in incognito mode, not even on Safari. The error was simple but frustrating: "Could not resolve hostname".

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.

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.

Accessing private EC2 Instances without keys or passwords

Adarsh Raj

SRE

Spandan Ghosh

Content @One2N

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.

Centralized VPN Solutions for Cloud and On Premise

Sagar Rakshe

SRE

Discover how a centralized VPN solution can address the challenges of shared VPNs and improve security, productivity, and manageability for your organization.

Iptables, Firewalls, Linux blast from the past!

Jaideep Khandelwal

CTO @One2N

A comprehensive guide to the iptables firewall utility, covering its syntax, tables, chains, targets, and real-world use cases for network address translation and IP resolution.

Talks

Sshuttle, poor man's VPN - Devops Days Bangalore 2023

Jaideep Khandelwal

CTO @One2N

A lightning talk on sshuttle: a transparent proxy that works as a lightweight VPN, forwards over SSH, needs no admin, and supports DNS tunneling.

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