Reverse Proxy

A reverse proxy allows you to pass requests through your web server to another site or program. The reverse proxy will make it look like BliKVM Web UI is a page within your existing site.

This is especially useful if:

• You need to access the WebUI on port 80 or 443 but you already host a website on the same device.

• You want to share SSL certificates with an existing site.

• You want to share authentication with an existing setup.

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BliKVM Configuration

BliKVM supports reverse proxying in the latest version. For older version, please update software first.

By default, BliKVM redirects all requests from HTTP port 80 to HTTPS port 443 with self-signed certificate. For the simplest configuration, you can leave it as it is, and terminate SSL traffic from BliKVM on your web server.

Alternatively, you can change the HTTP and HTTPS ports on BliKVM or disable HTTPS at all to deliver HTTP-only traffic to your server.

In both cases you should take care of your own SSL certificate for your web server.

"Various examples with changing HTTP/HTTPS settings"

• Changing HTTP and HTTPS ports. Place this config to /mnt/exec/release/config/app.json on BliKVM:

      "protocol": "https",
      "https_port": 443,
      "http_port": 80,

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Server Configuration

If you have access to your web server’s configuration use the following examples to pass the location / on the server to BliKVM Web UI hosted on https://blikvm_ip on HTTPS port 443.

Nginx

"How to install nginx on server? How to certificate your domain?"

• Install nginx on ubuntu server

    apt update
    apt install nginx -y

• Add a config for nginx, you can touch a file in /etc/nginx/sites-available/,like

    vim /etc/nginx/sites-available/reverse-proxy

• Some useful command:

# check config
nginx -t    
# when you update the config, you need to restart the nginx
systemctl restart nginx

• Apply for certificate

apt install certbot python3-certbot-nginx -y
certbot renew --dry-run

Nginx does not validate certificates by default. In the example given below, regarding domain names and certificates, you need to use your own actual ones.

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name www.blikvm.space;
    ssl_certificate /etc/letsencrypt/live/www.blikvm.space/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/www.blikvm.space/privkey.pem;
    location / {
    rewrite ^/$ / break;
    rewrite ^/\?(.*)$ ?$1 break;
    rewrite ^//(.*)$ /$1 break;
    proxy_redirect ~^(/.*)$ /$1;
    proxy_pass https://10.0.0.2;

    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Scheme $scheme;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-Port $server_port;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

    # For some handles (like MJPEG) buffering should be disabled
    postpone_output 0;
    proxy_buffering off;
    proxy_ignore_headers X-Accel-Buffering;

    # Some handles (ends with /ws) are WebSockets
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_connect_timeout 7d;
    proxy_send_timeout 7d;
    proxy_read_timeout 7d;

    # Some other handles requires big POST payload
    client_max_body_size 0;
    proxy_request_buffering off;
    }
}