How to install nginx-module-compression-normalize in CentOS/RHEL 9 (x86_64)
NGINX Accept-Encoding Normalization module
Install
sudo dnf -y install https://extras.getpagespeed.com/release-latest.rpm sudo dnf -y install dnf-plugins-core sudo dnf config-manager --enable getpagespeed-extras-mainline sudo dnf -y install nginx-module-compression-normalize
Description
NGINX module that parses, normalizes, and manages the Accept-Encoding headers from client requests. It ensures consistent handling of compression algorithms by standardizing the Accept-Encoding values, reducing cache variant explosion and improving vary cache performance. This is essential for proxy caching with Vary: Accept-Encoding to prevent creating multiple cache entries for equivalent compression preferences like "gzip, br" vs "br, gzip". To enable this module after installation, add the following to /etc/nginx/nginx.conf and reload NGINX: load_module modules/ngx_http_compression_normalize_module.so; Alternatively, you can enable all installed modules by placing this line at the top of /etc/nginx/nginx.conf: include /usr/share/nginx/modules/*.conf;