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IP/DNS could not be resolved during vSphere Data Protection (VDP) 5.1.x installation (2036396)
https://IP_address/name:8543/vdp-configurefails with the error:
IP/DNS could not be resolved. Please re-check the hostname, domain and DNS values for forward and reverse lookup validation
For more information, see the vSphere Data Protection Administration Guide.
Note: A TCP connection to DNS is required by VMware proxy nodes via port 53.
A Fully Qualified Domain Name (FQDN), as well as forward and reverse lookup, must be configured correctly for VDP to work. A failure to configure these correctly impacts VDP operations (such as backups).
For more information, see vSphere Data Protection (VDP) FAQ (2016565).
Also, run these commands from both vCenter Server and the VDP appliance to verify that DNS is properly configured:
nslookup FQDN_of_vcenter DNS_Server
ping FQDN_of_vcenter DNS_Server
nslookup IP_of_vcenter DNS_Server
ping IP_of_vcenter DNS_Server
nslookup IP_of_VDP DNS_Server
ping IP_of_VDP DNS_Server
Additionally, you may add the default domain and the search domain to the
To add the default domain and the search domain to the
- Open the
/etc/resolv.conffile using a text editor.
- Add these entries to the file:
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