Using Bookmarks
Table 3 describes the options that can be configured for VNC.
Table 3 VNC Options
Option | Default | Description of Options |
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Encoding | Tight | Hextile is a good choice for fast networks, while Tight is |
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| better suited for |
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| side, the Tight decoder in TightVNC Java viewer is more |
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| efficient than Hextile decoder so this default setting can |
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| also be acceptable for fast networks. |
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Compression Level | Default | Use specified compression level for Tight and Zlib |
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| encodings. Level 1 uses minimum of CPU time on the server |
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| but achieves weak compression ratios. Level 9 offers best |
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| compression but may be slow in terms of CPU time |
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| consumption on the server side. Use high levels with very |
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| slow network connections, and low levels when working |
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| over |
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| the server's default compression level should be used. |
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JPEG image quality | 6 | This cannot be modified. |
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Cursor shape updates | Enable | Cursor shape updates is a protocol extension used to |
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| handle remote cursor movements locally on the client side, |
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| saving bandwidth and eliminating delays in mouse pointer |
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| movement. Note that current implementation of cursor |
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| shape updates does not allow a client to track mouse cursor |
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| position at the server side. This means that clients would not |
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| see mouse cursor movements if the mouse was moved |
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| either locally on the server, or by another remote VNC client. |
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| Set this parameter to Disable if you always want to see real |
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| cursor position on the remote side. Setting this option to |
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| Ignore is similar to Enable but the remote cursor will not be |
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| visible at all. This can be a reasonable setting if you don't |
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| care about cursor shape and don't want to see two mouse |
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| cursors, one above another. |
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Use CopyRect | Yes | CopyRect saves bandwidth and drawing time when parts of |
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| the remote screen are moving around. Most likely, you don't |
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| want to change this setting. |
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Restricted colors | No | If set to No, then |
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| pixel data. If set to Yes, then only 8 bits are used to |
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| represent each pixel. |
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| but colors may look very inaccurate. |
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Mouse buttons 2 and | Normal | If set to Reversed, the right mouse button (button 2) will act |
3 |
| as if it was the middle mouse button (button 3), and vice |
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| versa. |
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View only | No | If set to Yes, then all keyboard and mouse events in the |
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| desktop window will be silently ignored and will not be |
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| passed to the remote side. |
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Share desktop | Yes | If set to Yes, then the desktop can be shared between |
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| clients. If this option is set to No then an existing user |
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| session will end when a new user accesses the desktop. |
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SonicWALL SSL VPN 5.5 User Guide | 139 |
