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March 04, 2021 12:00 PM

Conntrack turns a blind eye to dropped SYNs

We have been dealing with conntrack, the connection tracking layer in the Linux kernel, for years. And yet, despite the collected know-how, questions about its inner workings occasionally come up. When they do, it is hard to resist the temptation to go digging for answers....

November 27, 2020 1:00 PM

ASICs at the Edge

At Cloudflare, we pride ourselves in our global network that spans more than 200 cities in over 100 countries. To accelerate all that traffic through our network, there are multiple technologies at play. So let’s have a look at one of the cornerstones that makes all of this work....