[GUACAMOLE-1502] Nginx work as load balancing Guacamole servers

• Type: Wish
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 1.4.0
• Component/s: Documentation, guacamole
• Assignee: Unassigned
• Reporter: Bap
• Created: 16/Jan/22 15:47
• Updated: 20/Jan/22 09:22
• Resolved: 16/Jan/22 16:34

Description

Hi, 

I have a scenario following: 

Nginx has 2 IPs, one IP public and one private. And all backend servers have only private IPs

Nginx has configurations just simple like this (in the HTTP block) :

server {
    listen              443 ssl;
    server_name         ${NGINX_HOST};

    location /guacamole {
??        proxy_pass      http://backend;??
    }
}
upstream backend {
    server 10.10.20.189:8081;
    #server 10.10.20.34:8081;
}

It works well when I drop(commented like above) one of the 2 backend servers (I can access my public IP and configure connections to connect RDP successfully)

But when I use both servers I got an error on guacamole:

• • with web interface error "Error:* 
    An error has occurred and this action cannot be completed. If the problem persists, please notify your system administrator or check your system logs " and I cannot login properly.

• • with the guacamole log is still ok :* 2022-01-15T15:34:33.210506950Z 15:34:33.208 [http-nio-8080-exec-8] INFO  o.a.g.r.auth.AuthenticationService - User "guacadmin" successfully authenticated from [139.82.129.184, 10.10.20.253]

Please let me know if anyone has experience with Nginx declaration as a Load balancer for Guacamole, please give me some advice?