server_tokens off;

# curl -s -I -H 'Accept-Encoding: br,gzip,deflate' https://serverdiary.com
HTTP/2 200
server: nginx
date: Sun, 08 Nov 2020 12:51:03 GMT
content-type: text/html; charset=UTF-8
vary: Accept-Encoding
expires: Thu, 19 Nov 1981 08:52:00 GMT
x-content-type-options: nosniff
strict-transport-security: max-age=15768000
content-encoding: br

It also allows you to specify an optional HTTP status code criteria using the -s option and an optional content type criteria using the -t option while modifying the output headers with the more_set_headers and more_clear_headers directives.

Starting from NGINX 1.9.11, we can also compile this module as a dynamic module, by using the --add-dynamic-module=PATH option.

You can read more about this project on https://github.com/openresty/headers-more-nginx-module

How to install Nginx Headers More Filter Module

# yum groupinstall 'Development Tools' -y
# yum install gcc-c++ flex bison yajl yajl-devel curl-devel curl GeoIP-devel doxygen zlib-devel pcre-devel
# yum install lmdb lmdb-devel libxml2 libxml2-devel ssdeep ssdeep-devel lua lua-devel

Clone repository ngx_http_headers_more_filter_module from Github

# cd /usr/src
# git clone https://github.com/openresty/headers-more-nginx-module.git

In this post, we use lates stable Nginx version 1.18.0. We can check Nginx version with command:

# nginx -V
nginx version: nginx/1.18.0
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-39) (GCC)
built with OpenSSL 1.0.2k-fips  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie'

Now we need to download Nginx source, depend on our Nginx version.

In this example is Nginx 1.16.1, compile module and compiled Nginx Brotli located in objs.

# cd /usr/src
# wget http://nginx.org/download/nginx-1.18.0.tar.gz
# tar zxvf nginx-1.18.0.tar.gz
# cd nginx-1.18.0
# ./configure --with-compat --add-dynamic-module=/usr/src/headers-more-nginx-module
# make modules
# cp objs/ngx_http_headers_more_filter_module.so /etc/nginx/modules
# chmod 644 /etc/nginx/modules/ngx_http_headers_more_filter_module.so

How To Completely Remove Nginx Server Header

To load Nginx Headers More Filter Module, edit /etc/nginx/nginx.conf and add this code in top of configuration.