Does this discovery solution required reverse DNS to be functional?

[Amit Panjwani]

Hi

Can Anyone please confirm if ITOM Discovery Solution required reverse DNS to be functional? If so please provide the justification

Thanks,

Amit

[Pratiksha · Accepted solution]

I think it will affect. 

check this out https://hi.service-now.com/kb_view.do?sysparm_article=KB0747683

[SK Chand Basha]

Hi @Amit Panjwani 

WMI seems to require a fully formed host name in order top work. It will get this either through a reverse lookup or through WINS name resolution.

Go though this KB it might be helpful

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0747683

Mark it Helpful and Accept Solution!! If this helps you to understand.

[Amit Panjwani]

Thanks for the response but in our customer environment many of the servers does not have reverse DNS functionality enabled so does it means that ITOM discovery will not work for these servers?? Any suggestion for such servers

[Pratiksha]

WMI relies on having a fully resolved hostname, typically achieved through reverse lookup or WINS name resolution. In cloud environments where these mechanisms may not be set up, WMI queries can fail, leading to server discovery issues. While RMI-based discovery is intended to address this, it doesn't always function as expected. Therefore, if encountering WMI problems, consider forcing discovery to use RMI.

Mark it Helpful and Accept Solution!! If this helps you to understand.

[Pratiksha]

Mark it Helpful and Accept Solution!! If this helps you to understand.

[AmitKumarP]

Thanks for the inputs Pratiksha. What about other devices Like Linux/Unix /Solaris Servers and network devices (Router, switch, firewall & Printer) & Storage? Does it require Reverse DNS functionality to perform discovery scan for these device Type??