"The MOB is disabled", unable to access the vCenter MOB in VCF 9.0

Products

• VMware vCenter Server

Issue/Introduction

• After upgrading to 9.0, vCenter MOB is not accessible.
• Accessing MOB via web browser (https://vcenter-fqdn/mob) will show below message:
  
  

Environment

vCenter 9.x

Cause

The Managed Object Browser (MOB) is deactivated by default in VMware Cloud Foundation (VCF) 9.0 to comply with Security Technical Implementation Guide (STIG) requirements
Refer VCF 9.0 Release Notes - [Section: vCenter New Features-> vCenter Appliance]

 

Resolution

Enable the mob on vCenter 9.0

1. Connect to your VCSA via SSH
2. Backup the VPXD Configuration file
   
   # cp /etc/vmware-vpx/vpxd.cfg /var/core/vpxd.cfg_backup
   
   
3. Edit the Configuration File: Open the vpxd.cfg file using a text editor (e.g., vi)
   
   # vi /etc/vmware-vpx/vpxd.cfg
   
   
4. Identify the flag "enableDebugBrowse".If it's set to false or missing, change it or add it to true as shown below
   
      <vpxd>
   ...
     <enableDebugBrowse>true</enableDebugBrowse>
      ...
   </vpxd>
   
   
5. Save and close the file
6. Restart the vCenter Server Service (vpxd)
   
   # service-control --stop vpxd
# service-control --start vpxd

 

Additional Information

Japanese KB: "The MOB is disabled": VCF 9.0 で vCenter MOB にアクセスできません