1567421 : Connection refusal on proxy

Created: 2026-01-14T17:23:24Z - current status: new

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Summary of the Issue

A user reports that the reverse proxy service (max-pyproxy.desy.de:8899)—previously used for downloading packages (e.g., via pip or conda) to a segmented detector control PC—is now refusing connections. The user seeks clarification on whether this is a temporary malfunction or if the service has been discontinued.

Possible Solution / Next Steps

  1. Check Service Status:
  2. The reverse proxy for conda and other package managers was officially introduced in July 2025 (see context).

  3. If the service is no longer accessible, it may have been replaced, reconfigured, or temporarily disabled. The user should verify whether:

    • The proxy address has changed (e.g., port or hostname update).
    • The service now requires authentication (e.g., via DESY SSO or API keys).

  4. Alternative Access Methods:

  5. If the proxy is discontinued, the user may need to:

    • Use bastion.desy.de as a tunnel for internal network access (see troubleshooting context).
    • Configure package managers (e.g., conda, pip) to use max-quetz.desy.de (DESY’s conda package server) instead, if applicable (see quetz documentation).

  6. Contact Support:

  7. If the issue persists, the user should open a ticket with the Maxwell support team (maxwell.service@desy.de) for further investigation.

Sources Used

  1. Reverse Proxy Announcement (2025-07-13)
  2. Troubleshooting: Accessing DESY Internal Resources
  3. Quetz Conda Package Server Documentation