HAProxy configuration instruction bug

[Mahdij505]

403 Forbidden error

As I was trying to configure my HAProxy loadbalancer, I used default template provided in documentation but there was a bug! even though I configured everything correctly and everything was working fine, I couldn't access my panel and I recived (403 Forbiden) error. so I figured out it was a bug in configuration file.
The "http_request deny"" rule will execute first although it's written after "use_backend's" and it leads to 403 error. this is the fix for it:

1. Remove http_request deny first.
2. Add this new line after use_backend's, so when none of use_backend's executed this rule will execute:

# ... previous config ...
    
    use_backend panel if host_panel
    use_backend sub   if host_sub

    # If nothing matches above, it goes here:
    default_backend deny_backend

3. Add this line to the bottom of the file:

backend deny_backend
    mode http
    http-request deny deny_status 403

Make sure spacing is correct ;)