Nginx
Refs
How To Install Nginx on Ubuntu 18.04 [Quickstart]
nginx: See Active connections / Connections Per Seconds
HTTPS behind your reverse proxy
Using nginx as HTTP load balancer
Commands
# управление сервисом
sudo systemctl start/stop/restart/status nginx
# проверка синтаксиса конфигурации без перезапуска
sudo nginx -t
# reload configuration without server restart
nginx -s reload
# or
/etc/init.d/nginx reload
nginx.conf
client_max_body_size 100m; - ограничение максимального размера фалов в запросе
Ожидание для проксированных запросов.
location / {
  ...
  proxy_send_timeout      150;
  proxy_read_timeout      150;
}
Basic Auth
sudo apt-get install -y apache2-utils
sudo htpasswd -c /etc/nginx/htpasswd.elk kibanauser
location / {
  auth_basic "Restricted Access";
  auth_basic_user_file /etc/nginx/htpasswd.elk;
}
Static Files
https://docs.nginx.com/nginx/admin-guide/web-server/serving-static-content/
server {
        listen 80 default_server;
        listen [::]:80 default_server;
        root /var/www/conf-server;
        index index.html;
        server_name _;
        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
        }
        location /ds4/ {
                autoindex on;
        }
}
/var/www/conf-server/
├── ds4
│   └── readme.txt
└── index.html
nginx status
server {
    listen 81 default_server;
    listen [::]:81 default_server;
    root /var/www/html;
    index index.html index.htm index.nginx-debian.html;
    server_name _;
    location / {
        try_files $uri $uri/ =404;
    }
    location /nginx_status {
            stub_status;
            allow 127.0.0.1;
            deny all;
        }
}
websocket
Рабочая конфигурация centrifugo в проекте example
server {
  listen 80;
  server_name new.example.com new-api.example.com;
  rewrite ^ https://$server_name$request_uri? permanent;
}
server {
  listen 443;
  ssl on;
  server_name new.example.com;
  ssl_certificate /etc/nginx/ssl/example.crt;
  ssl_certificate_key /etc/nginx/ssl/example.key;
  ssl_session_timeout     5m;
  ssl_protocols           SSLv3 TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers ALL:!aNULL:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
  ssl_prefer_server_ciphers   on;
  location / {
  proxy_pass http://127.0.0.1:8080;
  proxy_set_header Host $host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  error_page 500 502 503 504 /error50x.html;
  location = /error50x.html {
  root /var/www/errors;
  }  
  }
}
map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
upstream websocket {
        server 127.0.0.1:8083;
    }
server {
  listen 443;
  ssl on;
  server_name ws.example.com;
  ssl_certificate /etc/nginx/ssl/example.crt;
  ssl_certificate_key /etc/nginx/ssl/example.key;
  ssl_session_timeout     5m;
  ssl_protocols           SSLv3 TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers ALL:!aNULL:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
  ssl_prefer_server_ciphers   on;
  location / {
  proxy_pass http://websocket;
  # proxy_set_header Host $host;
  # proxy_set_header X-Real-IP $remote_addr;
  # proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
  }
}
server {
        listen 443;# default_server;
        server_name new-api.example.com;
  ssl on;
  ssl_certificate /etc/nginx/ssl/example.crt;
  ssl_certificate_key /etc/nginx/ssl/example.key;
  ssl_session_timeout     5m;
  ssl_protocols           SSLv3 TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers ALL:!aNULL:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
  ssl_prefer_server_ciphers   on;
        location / {
                passenger_enabled on;
                passenger_max_request_queue_size 1000;
#                passenger_min_instances 3;
#                passenger_max_pool_size 10;
                rails_env    production;
                root         /var/www/api/current/public;
                # redirect server error pages to the static page /50x.html
                # error_page   500 502 503 504  /error50x.html;
    # location = /error50x.html; {
    #   root /var/www/errors;
    #  }
                }
}
