How to check if virt-who server can connect to vCenter (or other hypervisors)?

Environment

• Red Hat Satellite 6
• virt-who service configured on RHEL

Issue

• How to check if virt-who server can connect to vCenter?
• virt-who connection timeout:

2020-03-25 12:10:15,335 [INFO] @main.py:162 - Using configuration "virt-who-config-x" ("esx" mode)
2020-03-25 12:10:15,335 [INFO] @main.py:164 - Using reporter_id='virt-who-user2'
2020-03-25 12:12:22,731 [ERROR] @virt.py:416 - Thread 'virt-who-config-x' fails with error: ('Connection aborted.', error(110, 'Connection timed out'))

Resolution

• Check if the virt-who server can connect to VMware API:

# curl -k --verbose https://<vcenter fqdn>/sdk/vimService.wsdl

(or using vCenter_ip)

• Make sure that port 443 is allowed on the virt-who server and the vcenter and vice-versa. This is documented in this document:

  • Open a network port for communication between virt-who and the subscription service:
    On Red Hat Enterprise Linux 7:

# firewall-cmd --add-port="443/tcp"
# firewall-cmd --add-port="443/tcp" --permanent

• Open a corresponding network port for communication between virt-who and each virtualization manager or hypervisor:
  VMware vCenter: TCP port 443
  Microsoft Hyper-V: TCP port 5985
  Red Hat Enterprise Virtualization Manager 3.0 and earlier: TCP port 8443
  Red Hat Enterprise Virtualization Manager 3.1 and later: TCP port 443
  Red Hat OpenStack Platform compute node: depending on a transport type, default is TCP port 22 for SSH communication

More details in Virtual Instances Guide

For more KB articles/solutions related to Virt-who and Virtual Datacenter (VDC) Subscriptions Issues, please refer to the Consolidated Troubleshooting Article for Virt-who and Virtual Datacenter (VDC) Subscriptions Issues

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