Create and Apply SSL Certificates to VMware vSphere (ESXi)

#VMwarevSphere #SSL #PKI

Full steps can be found at https://i12bretro.github.io/tutorials/0418.html

Prerequisites

   - A XCA PKI database  https://youtu.be/ezzj3x207lQ

Create Your SSL Certificate

   01. Launch XCA    02. Open the PKI database if it is not already (File ≫ Open DataBase), enter password    03. Click on the Certificates tab, right click on your Intermediate CA certificate    04. Select New    05. On the Source tab, make sure Use this Certificate for signing is selected    06. Verify your Intermediate CA certificate is selected from the drop down    07. Click the Subject tab    08. Complete the Distinguished Name section          internalName: esxi.i12bretro.local          countryName: US          stateOrProvinceName: Virginia          localityName: Northern          organizationName: i12bretro          organizationUnitName: i12bretro Certificate Authority          commonName: esxi.i12bretro.local    09. Click the Generate a New Key button    10. Enter a name and set the key size to at least 2048    11. Click Create    12. Click on the Extensions tab    13. Select End Entity from the type list    14. Click Edit next to Subject Alternative Name    15. Add any DNS or IP addresses that the certificate will identify    16. Update the validity dates to fit your needs    17. Click the Key Usage tab    18. Under Key Usage select Digital Signature, Key Encipherment    19. Under Extended Key Usage select Web Server and Web Client Authentication    20. Click the Netscape tab    21. Select SSL Server    22. Click OK to create the certificate

Exporting Required Files

   01. In XCA, click on the Certificates tab    02. Right click the SSL certificate ≫ Export ≫ File    03. Set the file name to rui.crt verify the export format is PEM (.crt)    04. Click OK    05. Click the Private Keys tab    06. Right click the private key generated for the SSL certificate ≫ Export ≫ File    07. Set the file name to rui.key and verify the export format is PEM private (.pem)    08. Click OK

Applying SSL Certificates in VMware vSphere

   01. Open a web browser and navigate to the VMware vSphere web UI    02. Authenticate at the VMware ESXi login    03. Select Actions ≫ Services ≫ Enable Secure Shell (SSH)    04. Download WinSCP  https://winscp.net/eng/downloads.php    05. Extract WinSCP and run the executable    06. Connect to the VMware vSphere server IP via WinSCP    07. Login with the root user account    08. Navigate to /etc/vmware/ssl    09. Rename rui.crt to rui.crt.orig    10. Rename rui.key to rui.key.orig    11. Copy the exported rui.crt and rui.key to the VMware vSphere host /etc/vmware/ssl    12. Back in the web UI select Action ≫ Services Disable Secure Shell (SSH)    13. Click Actions ≫ Reboot and Reboot again to confirm    14. When the ESXi host comes back up the new SSL certificates will be used  

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