ZyXEL Communications NAS540, User Manual

Page: 312 / 372

Chapter 26 Maintenance Screens
Cloud Storage User’s Guide
312
The following table describes the labels in this screen.
26.6.1 Modifying or Creating a Certificate
When you select the Edit a self-signed CA certificate option, then click the Edit button, a screen
opens to allow you to make adjustments to the NAS’s public key certificate.
The screen is also the same for the Create a certificate authorized by other CA option
.
Figure 195
Maintenance > SSL > Create or Edit a Certificate
Table 121
Maintenance > SSL
LABEL DESCRIPTION
Install System Default CA Click Download button to save a copy of the NAS’s public key certificate to your
local computer. This is useful for installing the certificate without having to
connect to the NAS, or for sending by email to other users for them to install prior
to logging into the NAS for the first time. After saving the certificate to your
computer, double-click it to install it.
Note: Each web browser handles certificate installation differently.
Modify the Existing
Certificate Select Edit a self-signed CA certificate , then follow the on-screen instructions
for creating a public key certificate signed by the NAS as the local certificate
authority.
Note: Use certificates created and signed by the NAS if the device is not open to
external access.
Select Create a certificate authorized by other CA , then follow the on-screen
instructions to install a certificate that has been authorized by a third-party
certificate authority.
Note: Use this method if the device is open to external access, such as allowing
users to connect through the Internet using FTP over TLS or HTTPs.