Cisco Cisco Web Security Appliance S170 사용자 가이드

26-29

Cisco IronPort AsyncOS 7.7 for Web User Guide

Chapter 26 System Administration

Installing a Server Digital Certificate

Synchronizing the System Clock with an NTP Server

Step 1

Navigate to System Administration>Time Settings.

Step 2

Click Edit Settings.

Step 3

Select Use Network Time Protocol as the Time Keeping Method.

Step 4

Enter the fully qualified hostname or IP address of the NTP server, clicking Add Row as needed to add
servers.

Step 5

Submit and commit the changes.

Deleting an NTP Server from the Configuration

Step 1

Navigate to System Administration>Time Settings.

Step 2

Click Edit Settings.

Step 3

Click the garbage can icon to the right of the server name to delete it.

Step 4

Submit and commit the changes.

Manually Setting the System Date and Time in the GUI

Step 1

Navigate to System Administration > Time Settings.

Step 2

Select Set Time Manually.

Step 3

Set the date and time.

Step 4

Click Submit.

Installing a Server Digital Certificate

When an administrator logs into the Web Security appliance using HTTPS, the appliance uses a digital
certificate to securely establish the connection with the client application. The Web Security appliance
uses the “Cisco IronPort Web Security Appliance Demo Certificate” that comes installed by default.
However, client applications are not programmed to recognize this certificate, so you can upload a digital
certificate to the appliance that your applications recognize automatically.

Figure 26-11

shows the warning message that is displayed in Firefox when accessing the Web Security

appliance using the Cisco IronPort Web Security Appliance Demo Certificate.