Engineering Hub

AWS Tools & Resources

General AWS

• AWS Documentation Home Main AWS documentation landing page
• AWS Service Health Dashboard Real-time AWS service status
• AWS Pricing Calculator Estimate AWS service costs
• aws-services.info/regions AWS regions and availability zones reference
• AWS Well-Architected Best practices framework
• AWS Services List Complete list of all AWS services
• Adrian Cantrill Course Roadmap Adrian Cantrill Course Roadmap
• AWSStash Curated AWS links and references

AWS Tools

• IAM Policy Simulator Test and simulate IAM policies
• Web Identity Federation Playground Test web identity federation
• AWS Tools Collection Collection of AWS tools and resources
• IAM Policy to Terraform Convert IAM policies to Terraform HCL

AWS IP Ranges

• AWS IP Ranges Official AWS IP ranges (updated regularly)

AWS Diagramming

• AWS Architecture Icons Official AWS architecture icons
• awsicons.dev Community AWS icons (multiple formats)
• AWS Icons by James Kim Extensive AWS icon collection

Cloudflare Tools

• Cloudflare Radar Internet traffic and attack insights
• Cloudflare Routing Monitoring Monitor Cloudflare request rerouting from 50+ global locations (from Stas)
• Cloudflare IPv4 Ranges Cloudflare IP address ranges
• Cloudflare Tunnel with Firewall Configure tunnels with firewall rules

Kubernetes & Container Tools

Kubernetes Documentation

• Kubernetes Documentation Official Kubernetes documentation
• What is Kubernetes? Red Hat explainer / overview

Gateway API

• Kubernetes Gateway API Official Gateway API documentation
• Gateway API GitHub Kubernetes Gateway API repository
• Gateway API Concepts Gateway API concepts in Kubernetes docs

AWS Gateway API Controller

• AWS Gateway API Controller Docs Official AWS Gateway API Controller documentation
• AWS Gateway API Controller GitHub AWS Application Networking for Kubernetes repository
• AWS Gateway API Controller Releases Release notes and version history

Amazon EKS

• Amazon EKS Auto Mode EKS Auto Mode product page
• EKS Auto Mode Blog Streamline Kubernetes cluster management with EKS Auto Mode

CNI, eBPF & IPtables

Container Network Interface (CNI)

• CNI Specification Official Container Network Interface specification
• CNI GitHub CNI repository and plugins
• Amazon VPC CNI AWS VPC CNI plugin for Kubernetes
• Calico Calico CNI plugin and network policy
• Cilium eBPF-based CNI with advanced networking and security

eBPF (Extended Berkeley Packet Filter)

• eBPF.io Official eBPF documentation and resources
• eBPF: The Future of Networking Deep dive into eBPF for networking
• Cilium eBPF Library Pure Go library for eBPF programs

IPtables & Network Tools

• IPtables Documentation Official iptables/netfilter documentation
• Kubernetes Network Policies Kubernetes network policy documentation
• nftables Modern replacement for iptables

Networking & IP Tools

Network Monitoring

• ThousandEyes Internet Outages Real-time internet outage map

IP Address Lookup

• ipinfo.io Comprehensive IP lookup (geolocation, ASN, hostname)
• checkip.amazonaws.com Quick public IP check (AWS-hosted)
• ifconfig.io Public IP with location and ISP details
• Show My IP Check your public IPv4 & IPv6 address

CIDR & Subnet Calculators

• visualsubnetcalc.com Visual subnet calculator with split/join capabilities
• davidc.net/subnets Comprehensive subnet calculator (original visual tool)
• jodies.de/ipcalc IP calculator with network planning features
• cidr.xyz Minimal, fast, mobile-friendly CIDR calculator
• ipaddressguide.com/cidr Beginner-friendly CIDR guide with calculator

CIDR Reference & Documentation

• HPE CIDR Table CIDR to subnet mask conversion table
• m0n0.ch CIDR Intro CIDR notation introduction
• pfSense CIDR Guide CIDR guide for pfSense

Threat Intelligence

• talosintelligence.com Threat intelligence platform with IP reputation lookup

DNS & Domain Tools

DNS Lookup & Testing

• dnsrobot.net Real-time DNS propagation tool
• dns.toys Collection of DNS tools (lookup, reverse lookup, SSL checker)
• whatsmydns.net Global DNS propagation checker
• dnschecker.org DNS propagation and record lookup
• DNSPerf DNS performance benchmarks and monitoring
• Google Dig Google's DNS lookup tool
• MXToolbox SuperTool Comprehensive DNS and email diagnostics
• kloth.net/nslookup Simple online DNS lookup interface

DNSSEC & Security

• DNSSEC Analyzer Verisign DNSSEC validation tool

DNS Comparison & Migration

• dns_compare DNS migration testing tool (BIND zone file comparison)

WHOIS & Domain Info

• godaddy.com/whois WHOIS domain registration lookup
• iplocation.net IP geolocation lookup

JSON Tools

• json2table.com Convert JSON to customizable HTML tables
• beautifytools.com/json-beautifier JSON formatter and beautifier
• jmespath.org JSON query language with online playground
• jsonformatter.org JSON formatter and validator
• JSON Pretty Print Clean JSON formatting and indentation
• jsonlint.com JSON validator
• jsoncrack.com Visual JSON editor
• json2yaml.com Convert JSON to YAML

Text Processing & Encoding

Regex Testing

• regex101.com Interactive regex tester with explanations, multiple language support, and community-shared patterns

URL Encoding/Decoding

• urldecoder.org URL encoder/decoder with various encoding formats
• url-encode-decode.com User-friendly URL encoding tool

Linux/UNIX Tools

• crontab.guru Interactive cron schedule creator and explainer
• cron.help Cron expression generator and explainer

Cryptography & Security

• ssllabs.com/ssltest Comprehensive SSL/TLS security tester
• keylength.com Cryptographic key length security estimator
• jwt.io JSON Web Token debugger and validator

Miscellaneous Utilities

Time & Date

• worldtimebuddy.com Time zone comparison and meeting scheduler
• time.gov Official US time from NIST
• Time Duration Calculator Date/time duration calculator
• GMT vs UTC Explainer Difference between GMT and UTC

Generators & Converters

• uuidgenerator.net UUID (v4) generator
• Text to ASCII Art Generator Create ASCII art from text

Security & Secrets

• onetimesecret.com Secure one-time secret sharing (auto-expiring)

Documentation & Learning

• Markdown Cheat Sheet Quick Markdown syntax reference
• Essential CLI Tools Curated CLI tools list

Video & Media

• YouTube Transcript Read YouTube video transcripts
• Kome YouTube Transcript Generate YouTube transcripts

API Testing

• GoREST Free REST API for testing and prototyping

YAML Validation

• YAML Checker YAML syntax validator

Productivity

• darkreader.org Browser extension for dark themes

GitHub Resources

Personal

• d-padmanabhan GitHub Profile My GitHub repositories and contributions

Documentation & Articles

• MCP joins the Linux Foundation Model Context Protocol becomes vendor-neutral standard
• GitHub Documentation Official GitHub documentation
• The GitHub Blog Updates, ideas, and inspiration from GitHub