"Cannot validate proxy configuration. Proxy server didn't allow connection from VCF SDDC Manager to destination URL", Configuring proxy in SDDC Manager fails

Products

• VMware Cloud Foundation
• VMware SDDC Manager

Issue/Introduction

• Configuring proxy in SDDC Manager fails with message
  
  "Cannot validate proxy configuration. Proxy server didn't allow connection from VCF SDDC Manager to destination URL" or "Can't validate proxy configuration. Destination test URL https://depot.vmware.com returned unexpected HTTP Status. Call VMWARE Support."


• This issue is observed on VCF SDDC Manager 5.2 / 5.2.1.

Environment

VMware SDDC Manager 5.2
VMware SDDC Manager 5.2.1

Cause

This issue is caused due to recent change of authentication method in Broadcom depot dl.broadcom.com. During proxy configuration, VCF SDDC Manager try to validate proxy configuration by using it to connect to dl.broadcom.com (depot.vmware.com) and expect specific HTTP Status codes as response. Depot hosting changed this code from 401 AuthRequired for unauthenticated connection to 403 Forbidden or 404 Not found.

Resolution

1. SSH in VCF Installer/SDDC Manager appliance
2. Change to root
   
   su -
   
   
3. Edit the file /etc/vmware/vcf/operationsmanager/application.properties
   
   vi /etc/vmware/vcf/operationsmanager/application.properties
   
   
4. Add following line
   
   proxy.configuration.validation.expected.http.statuses=401,403,404
proxy.configuration.validation.test.url=https://dl.broadcom.com
   
   
5. Save the file and exit the editor (use Esc key + !wq)  
6. Restart operationsmanager service
   
   systemctl restart operationsmanager
   
   
7. Try to set proxy configuration again

Additional Information

VCF Authenticated downloads Configuration Update Instructions