When the window is not fully open, your TCP stack is doing more than you think
July 26, 2022 2:00PM
In this blog post I'll share my journey deep into the Linux networking stack, trying to understand the memory and window management of the receiving side of a TCP connection...
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A July 4 technical reading list
July 04, 2022 1:55PM
Reading List
Cloudflare Radar
Linux
TCP
Hertzbleed
Here’s a short list of recent technical blog posts to give you something to read today...
Optimizing TCP for high WAN throughput while preserving low latency
July 01, 2022 2:00PM
Deep Dive
TCP
Latency
Optimization
In this post, we describe how we modified the Linux kernel to optimize for both low latency and high throughput concurrently...
A Primer on Proxies
March 19, 2022 5:01PM
Deep Dive
TCP
Proxying
Research
iCloud Private Relay
A technical dive into traditional TCP proxying over HTTP...
Zero Trust client sessions
March 18, 2022 1:00PM
Security Week
Zero Trust
Cloudflare Zero Trust
TCP
Security
Starting today, you can build Zero Trust rules that require periodic authentication to control network access...
February 02, 2022 9:53AM
How to stop running out of ephemeral ports and start to love long-lived connections
Often programmers have assumptions that turn out, to their surprise, to be invalid. From my experience this happens a lot. Every API, technology or system can be abused beyond its limits and break in a miserable way...