How to install ngx_pagespeed for Directadmin

Cài mod_pagespeed On Apache
# cd /opt
# rpm -U https://dl-ssl.google.com/dl/linux/direct/mod-pagespeed-stable_current_x86_64.rpm
# yum install at wget https://dl-ssl.google.com/dl/linux/direct/mod-pagespeed-stable_current_x86_64.rpm -y
vim /etc/httpd/conf/extra/httpd-includes.conf
#Google PageSpeed Module
Include /etc/httpd/conf.d/pagespeed.conf
# Deflate module settings
# Include conf/extra/httpd-deflate.conf

Cài ngx_pagespeed on Nginx
https://www.modpagespeed.com/doc/build_ngx_pagespeed_from_source

cd /opt
yum -y install gcc-c++ pcre-devel zlib-devel make unzip libuuid-devel
NPS_VERSION=1.13.35.2-stable
wget https://github.com/apache/incubator-pagespeed-ngx/archive/v${NPS_VERSION}.zip
unzip v${NPS_VERSION}.zip
nps_dir=$(find . -name "*pagespeed-ngx-${NPS_VERSION}" -type d)
cd "$nps_dir"
NPS_RELEASE_NUMBER=${NPS_VERSION/beta/}
NPS_RELEASE_NUMBER=${NPS_VERSION/stable/}
psol_url=https://dl.google.com/dl/page-speed/psol/${NPS_RELEASE_NUMBER}.tar.gz
[ -e scripts/format_binary_url.sh ] && psol_url=$(scripts/format_binary_url.sh PSOL_BINARY_URL)
wget ${psol_url}
tar -xzvf $(basename ${psol_url}) # extracts to psol/

============================nginx================
cd /usr/local/directadmin/custombuild
mkdir -p custom/nginx
cp -fp configure/nginx/configure.nginx custom/nginx/configure.nginx
vi /usr/local/directadmin/custombuild/custom/nginx/configure.nginx
"--add-module=/opt/incubator-pagespeed-ngx-1.13.35.2-stable" \

============================nginx reverse proxy====================
cd /usr/local/directadmin/custombuild
mkdir -p custom/nginx_reverse
cp -fp configure/nginx_reverse/configure.nginx custom/nginx_reverse/
vi custom/nginx_reverse/configure.nginx
"--add-module=/opt/incubator-pagespeed-ngx-1.13.35.2-stable" \
./build used_configs
./build nginx

Chọn: Directadmin>Admin Level>Custom HTTPD Configurations>

pagespeed on;
pagespeed FileCachePath /var/cache/ngx_pagespeed;

# Ensure requests for pagespeed optimized resources go to the pagespeed handler
# and no extraneous headers get set.
location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" {
 add_header "" "";
}
location ~ "^/ngx_pagespeed_static/" { }
location ~ "^/ngx_pagespeed_beacon$" { }
location /ngx_pagespeed_statistics { allow 127.0.0.1; deny all; }
location /ngx_pagespeed_global_statistics { allow 127.0.0.1; deny all; }
location /ngx_pagespeed_message { allow 127.0.0.1; deny all; }

#pagespeed MemcachedThreads 1;
#pagespeed MemcachedServers "localhost:11211";
#pagespeed MemcachedTimeoutUs 100000;
# enable CoreFilters
# pagespeed RewriteLevel CoreFilters;
# Defer and minify Javascript
#pagespeed EnableFilters defer_javascript;
pagespeed EnableFilters rewrite_javascript;
pagespeed EnableFilters combine_javascript;
pagespeed EnableFilters canonicalize_javascript_libraries;

# Inline and minimize css
pagespeed EnableFilters rewrite_css;
pagespeed EnableFilters fallback_rewrite_css_urls;
# Loads CSS faster
#pagespeed EnableFilters move_css_above_scripts;
pagespeed EnableFilters move_css_to_head;
# Rewrite, resize and recompress images
#pagespeed EnableFilters rewrite_images;
# pagespeed EnableFilters rewrite_images;
pagespeed DisableFilters rewrite_images;
pagespeed DisableFilters recompress_images;
pagespeed DisableFilters convert_png_to_jpeg;
pagespeed DisableFilters extend_cache_images;
# pagespeed EnableFilters convert_png_to_jpeg;
# pagespeed EnableFilters convert_jpeg_to_webp;
# pagespeed EnableFilters convert_to_webp_lossless;

# remove tags with default attributes
pagespeed EnableFilters elide_attributes;
pagespeed FetchHttps enable,allow_self_signed;


======================================
# disable CoreFilters
pagespeed RewriteLevel PassThrough;
# enable collapse whitespace filter
        pagespeed EnableFilters collapse_whitespace;

        # enable JavaScript library offload
        pagespeed EnableFilters canonicalize_javascript_libraries;

        # combine multiple CSS files into one
        pagespeed EnableFilters combine_css;

        # combine multiple JavaScript files into one
        pagespeed EnableFilters combine_javascript;

        # remove tags with default attributes
        pagespeed EnableFilters elide_attributes;

        # improve resource cacheability
        pagespeed EnableFilters extend_cache;

        # flatten CSS files by replacing @import with the imported file
        pagespeed EnableFilters flatten_css_imports;
        pagespeed CssFlattenMaxBytes 5120;

        # defer the loading of images which are not visible to the client
        pagespeed EnableFilters lazyload_images;

        # enable JavaScript minification
        pagespeed EnableFilters rewrite_javascript;

        # enable image optimization
        pagespeed EnableFilters rewrite_images;

        # pre-solve DNS lookup
        pagespeed EnableFilters insert_dns_prefetch;

        # rewrite CSS to load page-rendering CSS rules first.
        pagespeed EnableFilters prioritize_critical_css;