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Instruction Manual
30
Accessing the VNC Interface
There are three ways to communicate with the Server Remote Control
unit in order to control the host computer:
Web interface: • The integrated Web server includes a Java-based VNC
client. This allows easy browser-based remote control.
Native VNC client: • There are several third-party software programs
that use the standard VNC protocol, available in open source and
commercial VNC clients.
SSH access: • By default, there is a standard SSH server running on
port 22 (the standard SSH port). Once connected via SSH, the VNC
traffic is tunneled through the SSH connection and encrypts the VNC
session. Each method will be discussed briefly in the following section.
The type of encryption method or client used is not critical.
Web Interface
Using SV441DUSBI’s web interface requires a browser, with cookies
and JavaScript enabled. To start the Java VNC client, login to the Web
configuration interface and click on the thumbnail of the desktop on the
Home menu, or click on the Connect button, located in the Main Menu.
You may need to upgrade Java support in your browser; however, most
modern browsers come with a version of Java that is compatible with this
application. The Java VNC client makes a connection back to the Server
Remote Control unit over port 5900 (by default) or 15900, if encrypted.
The encrypted connection is a standard SSL (Secure Socket Layer)
encrypted link that encrypts all data from the session, including the actual
video pictures.
Because Java is considered a “safe” programming language, the Java
VNC client has some limitations. Certain special keystrokes cannot be
sent, such as “Scroll Lock” on the keyboard.