Dell EMC OpenManage Essentials Version 2.5 User's Guide

Discovering and inventorying devices by using WS-Man or REST protocol with a root certificate

Before you begin, ensure that the root CA server, OpenManage Essentials management server, and WS-Man or REST target(s) are able to ping each other by hostname.
To discover and inventory Dell EMC devices by using the WS-Man or REST protocol with a root certificate:
  1. Open the web console of the target device—iDRAC, CMC, or OpenManage Enterprise Modular (OME - Modular).
  2. Generate a new certificate signing request file:
    1. For iDRAC or CMC, click Network and click SSL. For OME - Modular, click Application Settings > Security > Certificates .
    2. Select Generate a New Certificate Signing Request (CSR) and click Next. The Generate Certificate Signing Request (CSR) page is displayed.
    3. If applicable, type the appropriate information in the required fields. Ensure that the Common Name is the same as the host name used to access the web console of the device, and then click Generate.
    4. When prompted, save the request.csr file.
  3. Open the Microsoft Active Directory Certificate Services – root CA web server: http://signingserver/certsrv.
  4. Under Select a task, click Request a certificate. The Request a Certificate page is displayed.
  5. Click advanced certificate request. The Advanced Certificate Request page is displayed.
  6. Click Submit a certificate request by using a base-64-encoded CMC or PKCS #10 file, or submit a renewal request by using a base-64-encoded PKCS #7 file .
  7. Using a text editor, open the certificate signing request (.csr or .txt) file you saved in step 2 d.
  8. Copy the contents from the certificate signing request file and paste it in the Saved Request field.
  9. In the Certificate Template list, select Web Server, and click Submit. The Certificate Issued page is displayed.
  10. Click Base 64 encoded, and then click Download certificate.
  11. When prompted, save the certnew.cer file.
  12. Open the web console of the target device—iDRAC, CMC, or OpenManage Enterprise Modular (OME - Modular).
  13. For iDRAC or CMC, click Network and click SSL. For OME - Modular, click Application Settings > Security > Certificates .
  14. To upload the certificate:
    • For iDRAC or CMC, select Upload Server Certificate Based on Generated CSR and click Next.
    • For OME - Modular, click Upload and click Next.
  15. Click Browse, select the certnew.cer file you saved in step 11, and then click Apply.
  16. Install the RootCA signed certificate ( newcert.cer) as Trusted Root Certificate Authorities in the OpenManage Essentials management server:
    • NOTE: Ensure that the certificate file you want to install is a Base64 encoded certificate file issued by root CA.
    1. Right-click the certnew.cer file, and click Install Certificate. The Certificate Import Wizard is displayed.
    2. Select Local Machine as the store location, and then click Next.
    3. Select Place all certificates in the following store and click Browse. The Select Certificate Store dialog box is displayed.
    4. Select Trusted Root Certification Authorities, and click OK.
    5. Click Next.
    6. Click Finish. The Security Warning dialog box is displayed.
    7. Click Yes.
  17. Close the web browser and open the web console of the target device in a new browser window.
  18. Discover and inventory the WS-Man target(s), in OpenManage Essentials using the newcert.cer RootCA signed certificate file.

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