Hi [NAME],   Check if you're able to access to this article: [URL] This is the only article I can find to reset SCG root password, unsure if it's able to help you. Let me know if it does.    If you're not able to access to the article, you may need to contact the SCG support to remote into your appliance to reset the password by the support.     
I know the root password and can SSH as root. I also know the admin account password and can login to web ui. How can I change the root password? I need to do this as part of security best practice. Again, not the admin account but rather root. I checked the Dell Secure Connect Gateway Troubleshooting Guide but did not find.
How do I change root password on Dell Secure Connect Gateway