D-Link DNS-321 User Manual page 33

Section 3 - Configuration
Step 5: Firefox and FireFTP will now start a series of security
confirmations.
The first warning should look like this.
Click on the Or you can add an exception... button to
accept the security change.
Step 6: The second warning should look like this.
Click on the Add exception... button to accept the security
change.
Step 7: The next step is to get the certificate for the connection. Click
on the Get Certificate button to acquire the certificate.
D-Link DNS-321 User Manual
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