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2025

Azure Latency Surprise: PrivateLink Outperforms VNET Peering
Azure Subnet Peering Part 2
More on FQDN Filtering
Exploring Azure Network Latency: The Fundamentals
Comparing BGP communities in AWS and Azure
Multiple prefixes on a subnet
FizzBuzz Revisited: A Tale of Two Algorithms
Using packet captures to measure firewall latency
The Hidden Cost of Progress
GitHub action to test build of Docusaurus
Microsoft documentation hidden intent
CIDR ranges in AWS and Azure
ExpressRoute construct naming
Aviatrix. What's all that about?
AWS Egress Security
IPv6 Adoption
The prefix limit in Azure Route Server and how it's counted
Where to WAF
Using AWS Route 53 instead of Anycast and RouteServer
Understanding Azure AZ Sharding and Physical Zone Mapping
Azure Subnet Peering
How the internet works

2024

The case for non-technical managers in technical teams
Summary of common search algorithms
Dijkstra in OSPF
Beyond DNS: Implementing Anycast in Azure with Route Server and NVAs
Zen and the art of AI CVs
Ways of finding your IP
The secret IP that turned out to be DNS forwarding.
Cloud Readiness Assessment Methodology
The Power of Intentional Alerting
Longest Prefix Matching
Cloud networking news from Ignite 2024
From Network Blame to Platform Teams
Uploading my Docusaurus site
How to set up Github Actions to publish to S3 website
SD-WAN: A Strategic Step Toward Zero Trust
Transit route prevention with Azure Route Server
Azure Virtual WAN: The Promise vs. Reality
Finding dead DHCP scopes
Egress Security from Cloud
FQDN Filtering
Azure Private Link Services: Enabling Secure and Flexible Network Architectures
A little look at the AWS Gateway Load Balancer

2023

Python Route Summarisation

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Simon Painter
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Cloud Network Architect
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Cloud Network Engineer

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