Bar Tsveker | Senior CloudOps Engineer & AWS Solutions Architect

Hey, I'm Bar —

I build secure, self-healing cloud infrastructure that scales. Specializing in AWS, Terraform, and automation.

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Free Tools

Articles

Cheatsheets

+14 soon

Course

My Toolbox

36 free tools for DevOps engineers, cloud architects, and developers.

New

Speed Test

Download, upload, latency & jitter testing

Try it now

DNS Propagation

Check DNS across global resolvers

Open

Docker Compose

Visual docker-compose.yml builder

Open

AWS Health

AWS services status & SLA dashboard

Open

Domain Lookup

DNS, WHOIS & security analysis

Open

SSL Checker

Certificate validation & grading

New tools added regularly

From the Blog

47 articles on cloud architecture, DevOps practices, and engineering insights.

Latest

AWS

Sharing Encrypted AMIs Across AWS Accounts

The steps I follow to share KMS-encrypted AMIs between accounts - and the error that trips everyone up.

Dec 20252 min read

Read article

Terraform

Terraform State Management: Lessons from Production Incidents

7 min read

Networking

Juniper Switch: Getting Started with Junos CLI

4 min read

Terraform

Terraform Modules: How I Stopped Copy-Pasting Infrastructure

7 min read

New articles published weekly

Interactive Learning

1 hands-on guide to master DevOps & Cloud Engineering.14 more coming soon

beginner

🐧

Linux

Master the command line, file system, permissions, and everything you need to work with Linux servers like a pro.

Start Learning

New guides added regularly

Quick Reference

21 cheatsheets with essential commands at your fingertips.

Quick Ref

Linux Commands

Essential CLI commands for system administration, file management, and process control.

15 min

Read Now

Docker

Container lifecycle, images, volumes, networking, and Docker Compose essentials.

18 min

devops

Kubernetes

kubectl commands, pod management, deployments, services, and debugging.

20 min

devops

Git

Version control essentials - commits, branches, merging, and collaboration workflows.

18 min

devops

Terraform

HCL syntax, providers, resources, state management, and module patterns.

16 min

devops

Amazon EC2

Virtual servers, instance types, pricing, security groups, and auto scaling.

22 min

cloud

New cheatsheets added regularly

The best infrastructure is the one you never have to think about. It just works, it scales, and it heals itself.

—Bar Tsveker·CloudOps Philosophy