My Nginx Reverse-Proxy Configuration

crontab

SHELL=/bin/sh
PATH=/etc:/bin:/sbin:/usr/bin:/usr/sbin
# Order of crontab fields
# min   hour    mday    month   wday    command
0       0       *       *       1       mkdir -p /tmp/letsencrypt && letsencrypt renew && service nginx reload
0       0       *       *       4       openssl dhparam -out /usr/local/etc/nginx/dhparams.pem 2048 && service nginx reload

letsencrypt

location '/.well-known/acme-challenge' {
    default_type "text/plain";
    root /tmp/letsencrypt;
}

nginx.conf

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    server {
        listen       80;
        listen       [::]:80;

        include letsencrypt;
        location / {
                return 301 https://$host$request_uri;
        }
    }


    # HTTPS server
    #
    server {
        listen       443 ssl http2;
        listen       [::]:443 ssl http2;
        server_name  qwertyuiop.ninja;

        ssl_certificate      /usr/local/etc/letsencrypt/live/git.astro73.com/fullchain.pem;
        ssl_certificate_key  /usr/local/etc/letsencrypt/live/git.astro73.com/privkey.pem;
        
        include tls;

        location / {
                proxy_pass http://172.28.9.3:3000;
        }
    }

}

tls

# From https://cipherli.st/
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";
ssl_ecdh_curve secp384r1; # Requires nginx >= 1.1.0
ssl_session_cache shared:SSL:10m;
ssl_session_tickets off; # Requires nginx >= 1.5.9
ssl_stapling on; # Requires nginx >= 1.3.7
ssl_stapling_verify on; # Requires nginx => 1.3.7

#resolver $DNS-IP-1 $DNS-IP-2 valid=300s;
#resolver_timeout 5s;

#add_header Strict-Transport-Security "max-age=63072000; includeSubdomains; preload";
#add_header X-Frame-Options DENY;
#add_header X-Content-Type-Options nosniff;

# Extra diffie-helmen stuff
ssl_dhparam /usr/local/etc/nginx/dhparams.pem;