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SYN

September 20, 2019 3:53PM

When TCP sockets refuse to die

We noticed something weird - the TCP sockets which we thought should have been closed - were lingering around. We realized we don't really understand when TCP sockets are supposed to time out! We naively thought enabling TCP keepalives would be enough... but it isn't!...

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January 15, 2018 1:50PM

SYN 패킷 처리 실제​

SYN Korean International 한국어 기술 이야기

우리 Cloudflare는 실제 인터넷상의 서버 운영 경험이 많지만 이런 흑마술 수련도 게을리하지 않습니다. 이 블로그에서는 인터넷 프로토콜의 여러 어두운 부분을 다룬 적이 있지만, 이번에는 리눅스의 SYN패킷 처리에 대해서 자세히 알아 보도록 하겠습니다....

January 15, 2018 1:49PM

SYN packet handling in the wild

SYN TCP Programming

Here at Cloudflare, we have a lot of experience of operating servers on the wild Internet. But we are always improving our mastery of this black art. On this very blog we have touched on multiple dark corners of the Internet protocols: like understanding FIN-WAIT-2 or receive buffer tuning....

January 15, 2018 1:49PM

未知の領域でのSYNパケット処理

日本語 プログラミング SYN TCP International

Cloudflareは、インターネットの未知の領域でのサーバー運用に関して豊富な経験があります。それでも、常にこの黒魔術の腕に磨きをかけています。まさにこのブログで、FIN-WAIT-2の理解やバッファチューニングを受けるといったインターネットプロトコルの影の部分についてこれまで言及してきました。...

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January 15, 2018 1:49PM

在野外处理SYN数据包

在Cloudflare,我们有很多在“野外”互联网上操作服务器的经验。但我们一直在提高我们对这种“妖术”的掌握。在这篇博客中,我们触及了互联网协议的多个黑暗角落:比如理解FIN-WAIT-2或接收缓冲区调优。...