Have you pulled and found the error with jc21/nginx-proxy-manager:latest docker image?
Yes, 'jc21/nginx-proxy-manager:2.12.1'
Are you sure you're not using someone else's docker image?
Yes
Have you searched for similar issues (both open and closed)?
Yes
Describe the bug
I am experiencing a 502 Bad Gateway error in Nginx Proxy Manager when trying to access my upstream server. The upstream server is accessible directly, but when accessed through Nginx Proxy Manager, it returns a 502 error. I checked the logs in Docker (nginx-proxy-manager-app-1 container) and found the following error:
Nginx Proxy Manager Version
2.12.1
To Reproduce Steps to reproduce the behavior:
1- Configure a new proxy host in Nginx Proxy Manager with the IP and port of the upstream server.
2- Attempt to access the configured domain.
3- Observe the 502 Bad Gateway error in the browser.
Expected behavior
The upstream server should be accessible through Nginx Proxy Manager without errors.
Screenshots
Operating System
Running on Ubuntu Server 22.04 in a virtual machine.
Additional context
Docker version: 26.1.4
Browser version: 129.0.6668.58
This issue also occurred in previous versions of Nginx Proxy Manager (2.11.x) and was not resolved by updating to 2.12.1.
Hello,
Checklist Checklist
Have you pulled and found the error with jc21/nginx-proxy-manager:latest docker image? Yes, 'jc21/nginx-proxy-manager:2.12.1' Are you sure you're not using someone else's docker image? Yes Have you searched for similar issues (both open and closed)? Yes
Describe the bug I am experiencing a 502 Bad Gateway error in Nginx Proxy Manager when trying to access my upstream server. The upstream server is accessible directly, but when accessed through Nginx Proxy Manager, it returns a 502 error. I checked the logs in Docker (nginx-proxy-manager-app-1 container) and found the following error:
Nginx Proxy Manager Version 2.12.1
To Reproduce Steps to reproduce the behavior:
1- Configure a new proxy host in Nginx Proxy Manager with the IP and port of the upstream server. 2- Attempt to access the configured domain. 3- Observe the 502 Bad Gateway error in the browser.
Expected behavior The upstream server should be accessible through Nginx Proxy Manager without errors.
Screenshots
Operating System Running on Ubuntu Server 22.04 in a virtual machine.
Additional context Docker version: 26.1.4 Browser version: 129.0.6668.58 This issue also occurred in previous versions of Nginx Proxy Manager (2.11.x) and was not resolved by updating to 2.12.1.
Best regards Matias