What is Credential-less Discovery

[Harish Bainsla]

1.Credentials less Discovery refers to the ability to discover and populate the cmdb without requiring credentials.

2. It will only populate few values.

3. It will gather information with help of NMAP.

Make sure your mid server is up and validated.

Steps to do Credentials less Discovery 

1. Open mid sever and below related link you find option enable credentials less discovery click there

2. It will ask to  install NMAP and after few minute it will installed  and show installed successfully.

Now do discovery you will see that after discovery is completed only few fields of ci get populated in CMDB table like Name, DNS Domain.

Thank You

LinkedIn : https://www.linkedin.com/in/harish-baisla-8895aa22a/

ServiceNow Community Rising Star 2024

[Ravi Chandra_K]

Hello @Harish Bainsla 

Thank you for the article...

What is an NMAP...

and How the remaining values get populated..?

Can they populated with other type of discoveries..?

Kind Regards,

Ravi Chandra 

[Harish Bainsla]

Hi @Ravi Chandra_K 

NMAP is used to perform network scanning to identify active host , open ports and detect the Operating system and DNS.

How the remaining values get populated..?

For more value populate we will create credentials and do discovery and if you want to populate the value which are not coming through discovery you will use pattern and service mapping as per you need.

If you want to know detailed about NMAP check below link by ServiceNow

https://www.servicenow.com/docs/bundle/xanadu-it-operations-management/page/product/discovery/concep...

Hope I will give answer to your question

[SK Chand Basha]

Hi Ravi

NMAP means Network Mapper commands with a mid sever to collect some basic information from the CI without using credentials. 

Best practice:- 

Credentials less discovery should only be used on know subnets where credentials are not viable and should not be used long term. 

[Bhupender]

Thank you, Harish Bainsla, for this knowledgeable article. I am Learning ServiceNOW and your Documentations and linkedin Posts related to SN are easy and explained very well.