To avoid exposing an additional port, AppServer port 2880, you can configure NGINX reverse proxy. 

1. Open default site configuration file.

2. Inside server {} block and add the next rule:

location /wscservice/api/ {
	proxy_pass http://your_host:2880;
}

3. Save file and restart NGINX.

systemctl restart nginx

4. In your browser, check version and status of AppServer to verify if it works properly.