From 8905e970af3800ead1c3682ba3fb2a71751b0a78 Mon Sep 17 00:00:00 2001 From: Danila Vershinin Date: Tue, 12 May 2020 14:48:53 +0300 Subject: [PATCH] Update configuration.md for #185 Mentions required config changes to actually enable TFO on supported systems --- docs/configuration.md | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/docs/configuration.md b/docs/configuration.md index f1c3158b..6b6cf8f4 100644 --- a/docs/configuration.md +++ b/docs/configuration.md @@ -189,6 +189,15 @@ For supporting legacy protocol versions you may also need to lower the `MinProtocol` property in your OpenSSL configuration (typically `/etc/ssl/openssl.cnf`). +## TCP Fast Open Support + +TCP Fast Open saves up to one full round-trip time (RTT) over +the standard three-way connection handshake during a TCP session. + +Since kernel version 3.13, the TCP Fast Open is enabled by default. +However, it must be explcitly enabled in the configuration file: + + tcp-fastopen = on ## Uninterrupted configuration reload