diff --git a/script/install/nginx/conf.d/common.conf b/script/install/nginx/conf.d/common.conf
new file mode 100644
index 000000000..fde1b08b7
--- /dev/null
+++ b/script/install/nginx/conf.d/common.conf
@@ -0,0 +1,92 @@
+ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
+ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS';
+ssl_prefer_server_ciphers on;
+ssl_session_timeout 4h;
+ssl_session_cache shared:SSL:20m;
+ssl_session_tickets off;
+ssl_stapling on;
+ssl_stapling_verify on;
+ssl_dhparam /etc/nginx/ssl/dhparam.pem;
+resolver 8.8.8.8 8.8.4.4;
+
+root /var/www/danbooru/current/public;
+index index.html;
+access_log off;
+error_log /var/www/danbooru/shared/log/server.error.log;
+try_files $uri/index.html $uri.html $uri @app;
+client_max_body_size 30m;
+error_page 503 @maintenance;
+error_page 404 /404.html;
+error_page 500 502 503 504 /500.html;
+
+location /assets {
+  expires max;
+  break;
+}
+
+location /data/preview {
+  expires max;
+  break;
+}
+
+location /posts/mobile {
+  return 404;
+}
+
+location /users {
+  limit_req zone=users burst=5;
+  limit_req_status 429;
+  try_files $uri @app_server;
+}
+
+location /posts {
+  limit_req zone=posts burst=20;
+  limit_req_status 429;
+  try_files $uri @app_server;
+}
+
+location /data {
+  valid_referers none *.donmai.us donmai.us ~\.google\. ~\.bing\. ~\.yahoo\.;
+
+  if ($invalid_referer) {
+    return 403;
+  }
+
+  rewrite ^/data/sample/__.+?__(.+) /data/sample/$1 last;
+  rewrite ^/data/__.+?__(.+) /data/$1 last;
+
+  expires max;
+  break;
+}
+
+location /maintenance.html {
+  expires 10;
+}
+
+if (-f $document_root/maintenance.html) {
+  return 503;
+}
+
+if ($http_user_agent ~ (WinHttp\.WinHttpRequest\.5) ) {
+  return 403;
+}
+
+location @maintenance {
+  rewrite ^(.*)$ /maintenance.html last;
+}
+
+location @app_server {
+  proxy_pass http://app_server;
+  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+  proxy_set_header X-Real-IP $remote_addr;
+  proxy_redirect off;
+  proxy_set_header Host $http_host;
+  proxy_set_header X-Forwarded-Proto $scheme;
+  proxy_buffer_size 128k;
+  proxy_buffers 4 256k;
+  proxy_busy_buffers_size 256k;
+}
+
+location / {
+  try_files $uri @app_server;
+}
diff --git a/script/install/nginx/nginx.conf b/script/install/nginx/nginx.conf
new file mode 100644
index 000000000..f8d9b7e99
--- /dev/null
+++ b/script/install/nginx/nginx.conf
@@ -0,0 +1,82 @@
+user www-data;
+worker_processes auto;
+pid /var/run/nginx.pid;
+
+events {
+  use epoll;
+  worker_connections 10000;
+  multi_accept on;
+  accept_mutex on;
+}
+
+http {
+  limit_req_zone $binary_remote_addr zone=users:10m rate=5r/s;
+  limit_req_zone $binary_remote_addr zone=posts:100m rate=10r/s;
+
+  ##
+  # Basic Settings
+  ##
+
+  sendfile on;
+  tcp_nopush on;
+  tcp_nodelay on;
+  keepalive_timeout 5;
+  types_hash_max_size 2048;
+  # server_tokens off;
+
+  server_names_hash_bucket_size 128;
+  # server_name_in_redirect off;
+
+  include /etc/nginx/mime.types;
+  default_type application/octet-stream;
+
+  ##
+  # Logging Settings
+  ##
+
+  access_log off;
+  error_log /var/log/nginx/error.log;
+
+  ##
+  # Gzip Settings
+  ##
+
+  gzip on;
+  gzip_disable "msie6";
+
+  gzip_http_version 1.1;
+  gzip_vary on;
+  gzip_comp_level 5;
+  gzip_proxied any;
+  gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/rss+xml text/javascript application/atom+xml;
+
+  # curl https://www.cloudflare.com/ips-v4 | sort
+  set_real_ip_from 103.21.244.0/22;
+  set_real_ip_from 103.22.200.0/22;
+  set_real_ip_from 103.31.4.0/22;
+  set_real_ip_from 104.16.0.0/12;
+  set_real_ip_from 108.162.192.0/18;
+  set_real_ip_from 131.0.72.0/22;
+  set_real_ip_from 141.101.64.0/18;
+  set_real_ip_from 162.158.0.0/15;
+  set_real_ip_from 172.64.0.0/13;
+  set_real_ip_from 173.245.48.0/20;
+  set_real_ip_from 188.114.96.0/20;
+  set_real_ip_from 190.93.240.0/20;
+  set_real_ip_from 197.234.240.0/22;
+  set_real_ip_from 198.41.128.0/17;
+  set_real_ip_from 199.27.128.0/21;
+
+  # curl https://www.cloudflare.com/ips-v4 | sort
+  set_real_ip_from 2400:cb00::/32;
+  set_real_ip_from 2606:4700::/32;
+  set_real_ip_from 2803:f800::/32;
+  set_real_ip_from 2405:b500::/32;
+  set_real_ip_from 2405:8100::/32;
+  set_real_ip_from 2a06:98c0::/29;
+  set_real_ip_from 2c0f:f248::/32;
+
+  real_ip_header CF-Connecting-IP;
+
+  include /etc/nginx/sites-enabled/*.conf;
+}
diff --git a/script/install/nginx/sites-enabled/danbooru.conf b/script/install/nginx/sites-enabled/danbooru.conf
new file mode 100644
index 000000000..30d19cda3
--- /dev/null
+++ b/script/install/nginx/sites-enabled/danbooru.conf
@@ -0,0 +1,68 @@
+server {
+  listen 443 ssl http2 default_server;
+  server_name danbooru.donmai.us;
+
+  ssl_certificate /etc/nginx/ssl/danbooru.chain.pem;
+  ssl_certificate_key /etc/nginx/ssl/danbooru.key;
+
+  include /etc/nginx/conf.d/common.conf;
+}
+
+server {
+  listen 443 ssl http2;
+  server_name safebooru.donmai.us;
+
+  ssl_certificate /etc/nginx/ssl/safebooru.chain.pem;
+  ssl_certificate_key /etc/nginx/ssl/safebooru.key;
+	
+  include /etc/nginx/conf.d/common.conf;
+}
+
+server {
+  listen 443 ssl http2;
+  server_name kagamihara.donmai.us;
+
+  ssl_certificate /etc/letsencrypt/live/kagamihara.donmai.us/fullchain.pem; # managed by Certbot
+  ssl_certificate_key /etc/letsencrypt/live/kagamihara.donmai.us/privkey.pem; # managed by Certbot
+
+  include /etc/nginx/conf.d/common.conf;
+}
+
+server {
+  listen 443 ssl http2;
+  server_name saitou.donmai.us;
+
+  ssl_certificate /etc/letsencrypt/live/saitou.donmai.us/fullchain.pem; # managed by Certbot
+  ssl_certificate_key /etc/letsencrypt/live/saitou.donmai.us/privkey.pem; # managed by Certbot
+
+  include /etc/nginx/conf.d/common.conf;
+}
+
+server {
+  listen 443 ssl http2;
+  server_name shima.donmai.us;
+
+  ssl_certificate /etc/letsencrypt/live/shima.donmai.us/fullchain.pem; # managed by Certbot
+  ssl_certificate_key /etc/letsencrypt/live/shima.donmai.us/privkey.pem; # managed by Certbot
+
+  include /etc/nginx/conf.d/common.conf;
+}
+
+# redirect HTTP to HTTPS.
+server {
+  listen 80;
+  server_name safebooru.donmai.us danbooru.donmai.us kagamihara.donmai.us saitou.donmai.us shima.donmai.us;
+  return 301 https://$host$request_uri;
+}
+
+# redirect donmai.us and www.donmai.us to danbooru.donmai.us.
+server {
+  listen 80;
+  listen 443 ssl;
+  server_name donmai.us	www.donmai.us;
+  return 301 https://danbooru.donmai.us$request_uri;
+}
+      
+upstream app_server {
+  server unix:/tmp/.unicorn.sock fail_timeout=0;
+}