Problem description
This error can occur while setting up any VMware backup proxy. When you try to connect to the FQDN/IP of the vCenter or an ESXi to validate credentials configured while setting up the proxy, the following error is displayed:
[Errno -2] Name or service not known
Cause
This error can occur while setting up any VMware backup proxy. When you try to connect to the FQDN/IP of the vCenter or an ESXi to validate credentials configured while setting up the proxy, the following error is displayed:
[Errno -2] Name or service not known
Traceback
Log location:
/var/log/Phoenix/ vCenterCred.log
[2020-09-29 03:16:09,932] [INFO] ==== vSphereCredetial process started.====
[2020-09-29 03:16:09,932] [INFO] vCenterCredential: request received for set credentials
[2020-09-29 03:16:09,932] [INFO] vCenterCredential: parameters are is_vmc: False host: test.druva.com, username: administrator@vsphere.local
[2020-09-29 03:16:09,933] [INFO] vSphereCredManager: path for credential file is : /etc/Phoenix/.vsphere_credentials
[2020-09-29 03:16:09,933] [INFO] vSphereCredManager: Opening connection to vSphereAdapter
[2020-09-29 03:16:09,989] [ERROR] Unable to set vCenter credentials due to error (vim.fault.HostConnectFault) {
dynamicType = <unset>,
dynamicProperty = (vmodl.DynamicProperty) [],
msg = '[Errno -2] Name or service not known',
faultCause = <unset>,
faultMessage = (vmodl.LocalizableMessage) []Resolution
Validate the FQDN/IP setting of vCenter/Esxi while configuring the backup proxy.
Ensure that the NFC port 902 is open.
Telnet <vcenter/esxi> 902
To verify whether the 902 port is open
Open the vSphere Web Client.
Go to Host and Clusters, select Host, and go to Configure > Firewall.
Check the firewall rule.
Select the firewall rule and click Edit if a modification is required.
