Avocent DSView, Installer/User Manual

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22
DSView Installer/User Guide
• Certificates
• Integrated Windows Authentication
®
• A firewall
• A Virtual Private Network (VPN)
• A Network Address Translation (NAT) device
Configuring Internet Explorer
When the Internet Explorer web browser is used, specific settings are required to enable the
DSView software to operate correctly.
• SSL (Secure Sockets Layer) certificates - Used for secure authentication between the DSView
software client and DSView software hub server.
• ActiveX controls - Used to display Telnet application, serial and KVM sessions.
• Security Zones - Used to control the actions that may be performed within Internet Explorer.
For example, the operation of JavaScript, which is used by the DSView software, is dependent
on security zone settings.
• Advanced Internet options - Used for miscellaneous settings that enhance the use of the
DSView software.
Correcting certificate security alerts
The DSView management software uses SSL to securely communicate between the DSView
software hub server and DSView software clients. SSL provides secure authentication using
certificates, which is data that identifies the PC with which communication will occur. A certificate
is typically verified by another certificate from a trusted certificate authority. See
Using certificates
on page 27 for more information.
When the DSView management software is initially installed, it generates a self-signed certificate
for use with DSView software clients. An administrator may replace the generated certificate with
a certificate signed by a trusted third party. If the generated certificate is not replaced, the web
browser will prompt a user whether to trust the generated certificate when a DSView software
client session is started.
Three tests are performed on a certificate each time a DSView software client connects to the
DSView software hub server:
• Does the client web browser trust the certificate issuer?
• Has the certificate expired?
• Does the name on the DSView software server certificate match the name the DSView
software client used to access the DSView software server?
A Security Alert dialog box will appear if the answer to any of the three questions is No. To prevent
the Security Alert message box from appearing when you connect to a the DSView software hub
server, all three questions must be answered Yes.