...
Modify the link for your environment. (Use Safari app at this case)
http://<host IP or name>/<web instance name>/webclient/<cert file name>.cer
Allow to download the certificate file. Press Allow to continue.
Close it and open the Setting app. Press Close to continue next steps.
Once open the Settings app it will show row "Profile Downloaded" at the top. Go to Profile Downloaded page.
Install the Certificate. Press Install to continue.
Press Install to pass the warning message.
Press Install to further confirm and install certificate file.
Install completed and press Done to leave.
Go to Settings > About > Certificate Trust Settings
(you can search key word by search box at setting app home page.)
- Toggle on to Enable the certificate.
Re-Confirm the action. Press Continue to continue next steps.