Simple nginx reverse proxy with ssl installation

nginx_reverse_proxy_with_ssl.md

How-to install/configure a reverse proxy with nginx and ssl

Seven easy steps to configure a full nginx reverse proxy with ssl:

- 1: go to your nginx folder

cd /etc/nginx/sites-available

- 2: create a new config file with your domain or subdomain name

nano {subdomain.domain.de.conf}

- 3: copy this inside the file and replace the right values

map $http_upgrade $connection_upgrade {
  default upgrade;
  ''      close;
}
server {
  listen 80;
  server_name {subdomain.domain.de};
  return 301 https://$host$request_uri;
}

# SSL configuration
server {
  listen 443 ssl;
  server_name {subdomain.domain.de};
  ssl_certificate      /etc/letsencrypt/live/{subdomain.domain.de}/fullchain.pem;
  ssl_certificate_key  /etc/letsencrypt/live/{subdomain.domain.de}/privkey.pem;

  # Improve HTTPS performance with session resumption
  ssl_session_cache shared:SSL:10m;
  ssl_session_timeout 5m;

  # Enable server-side protection against BEAST attacks
  ssl_prefer_server_ciphers on;
  ssl_ciphers ECDH+AESGCM:ECDH+AES256:ECDH+AES128:DH+3DES:!ADH:!AECDH:!MD5;

  # Disable SSLv3
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

  # Diffie-Hellman parameter for DHE ciphersuites
  ssl_dhparam /etc/ssl/certs/dhparam.pem;

  # Enable HSTS (https://developer.mozilla.org/en-US/docs/Security/HTTP_Strict_Transport_Security)
  add_header Strict-Transport-Security "max-age=63072000; includeSubdomains";

  # Enable OCSP stapling (http://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox)
  ssl_stapling on;
  ssl_stapling_verify on;
  ssl_trusted_certificate /etc/letsencrypt/live/{subdomain.domain.de}/fullchain.pem;
  resolver 8.8.8.8 8.8.4.4 valid=300s;
  resolver_timeout 5s;

  location / {
    proxy_pass http://{ip}:{port};
    proxy_set_header Host $host;
    proxy_redirect http:// https://;
    proxy_http_version 1.1;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;
  }
}

- 4: if you have never certified a domain with certbot please execute openssl as follows:

sudo openssl dhparam -out /etc/ssl/certs/dhparam.pem 4096

- 5: register the domain on domain provider

{subdomain.domain.de} has to point with an A-Record to your public IP adress

- 6: certificate request

• sudo systemctl stop nginx
• sudo certbot certonly -d {subdomain.domain.de}
• select: Spin up a temporary webserver (standalone)
• sudo systemctl start nginx

- 7: last step symlink

sudo ln -s /etc/nginx/sites-available/{subdomain.domain.de.conf} /etc/nginx/sites-enabled/