PowerProtect: Deployment Failure Occurs with Allowlist API Error Due to Incorrect Hostname Resolution in PowerProtect Data Manager 19.20

Summary: This issue occurs when deploying PowerProtect Data Manager (PPDM) version 19.20 Search node. This results in unsuccessful initialization due to InfrastructureNodeSessions failure and inability to generate cert-key and allowlist fully qualified domain name (FQDN). ...

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Symptoms

Unable to deploy PPDM 19.20 Search node.

Error Message:

"Error message "Unable to generate cert-key, thumbprint string for node deployment - unable to allowlist fqdn"!
Unable to deploy VM. Unable to generate virtual machine deployment configuration. Unable to generate cert-key, thumbprint string for node deployment. unable to allowlist fqdn. Request unsuccessful: Post "https://localhost:8443/api/v2/whitelist": http: ContentLength=76 with Body length 0 (0

 

Cause

The IP address and FQDN of the PPDM had become commented out in the /etc/hosts file which led Eureka to resolve an incorrect hostname, which caused the allowlist API to fail and prevented the search engine from deploying successfully.

admin:~> date; curl -w '\nHTTP_CODE=%

> {http_code}

> \n' -s -k -H "Authorization: Bearer $token" -H "Content-Type: application/json" -X POST https://localhost:8443/api/v2/whitelist -k -d '

> {"expiresAt" : "2026-02-10T22:29:13.000Z", "ip" : "xxx.xxx.xxx.xxx", "state": "APPROVED"}

> '; date

Thu 18 Sep 2025 07:59:07 AM EDT

{   "reason" : "The service is unavailable.",   "remediation" : "Try the operation again later.",   "code" : 503,   "path" : "/api/v2/whitelist",   "timestamp" : 1758196747565,   "details" : [ ] }

HTTP_CODE=%

{http_code}

 

Resolution

Added the correct entries in /etc/hosts of the PPDM host and restarted both AAA and Eureka.

Then redeployed the Search Engines.

 

Article Properties
Article Number: 000371019
Article Type: Solution
Last Modified: 29 Sept 2025
Version:  2
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