Repository / Letter N / nginx-ech

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How to install nginx-ech (x86_64)

Encrypted Client Hello key management for NGINX

Install

sudo yum -y install https://extras.getpagespeed.com/release-latest.rpm
sudo amazon-linux-extras install epel
sudo yum -y install nginx-ech

Description

Key generation and rotation for Encrypted Client Hello (ECH, RFC 9849). nginx reads ECH keys while parsing its configuration, so a new key only takes effect on reload, and a client that picked up an older ECHConfigList from a cached HTTPS DNS record still needs the key it encrypted to. nginx handles that by accepting several ssl_ech_file directives: the first is advertised in retry-configs, the rest stay loaded for decryption only. This package ships nginx-ech-keygen, which maintains that rolling set under /etc/nginx/ech and regenerates the include listing them, plus a systemd timer that rotates on a schedule. The timer is not enabled on install and nothing happens until you configure it. Set ECH_PUBLIC_NAME in /etc/sysconfig/nginx-ech-rotate, run "nginx-ech-keygen --init", publish the value it prints in the HTTPS record for your ECH-enabled names, then "systemctl enable --now nginx-ech-rotate.timer". ECH only helps if the HTTPS record is served from a DNS-only zone and clients resolve over DoH. See https://nginx-extras.getpagespeed.com/ech/

RPMs

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