Ubuntu 26.04

How to Set Up Nginx as a Reverse Proxy Server for PM2 on Ubuntu 26.04

To set up Nginx as a reverse proxy in front of PM2 on Ubuntu 26.04, proxy example.com to the app on port 3020.

Step 1 : Install Nginx if you have not. Use How to Install Nginx on Ubuntu 26.04.

Step 2 : Create the server block. The PM2 app must already be listening on port 3020.

sudo tee /etc/nginx/sites-available/example.com <<'EOF'
server {
    listen 80;
    listen [::]:80;
    server_name example.com www.example.com;
    location / {
        proxy_pass http://127.0.0.1:3020;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        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_set_header X-Forwarded-Proto $scheme;
        proxy_cache_bypass $http_upgrade;
    }
}
EOF

Step 3 : Enable the site.

sudo ln -sfn /etc/nginx/sites-available/example.com /etc/nginx/sites-enabled/example.com

Step 4 : Test and restart.

sudo nginx -t
sudo systemctl restart nginx

Step 5 : Open the site in a browser.

http://example.com

You have set up Nginx as a reverse proxy server for PM2 on Ubuntu 26.04.