Using Bookmarks

Table 3 describes the options that can be configured for VNC.

Table 3 VNC Options

Option

Default

Description of Options

 

 

 

Encoding

Tight

Hextile is a good choice for fast networks, while Tight is

 

 

better suited for low-bandwidth connections. From the other

 

 

side, the Tight decoder in TightVNC Java viewer is more

 

 

efficient than Hextile decoder so this default setting can

 

 

also be acceptable for fast networks.

 

 

 

Compression Level

Default

Use specified compression level for Tight and Zlib

 

 

encodings. Level 1 uses minimum of CPU time on the server

 

 

but achieves weak compression ratios. Level 9 offers best

 

 

compression but may be slow in terms of CPU time

 

 

consumption on the server side. Use high levels with very

 

 

slow network connections, and low levels when working

 

 

over higher-speed networks. The Default value means that

 

 

the server's default compression level should be used.

 

 

 

JPEG image quality

6

This cannot be modified.

 

 

 

Cursor shape updates

Enable

Cursor shape updates is a protocol extension used to

 

 

handle remote cursor movements locally on the client side,

 

 

saving bandwidth and eliminating delays in mouse pointer

 

 

movement. Note that current implementation of cursor

 

 

shape updates does not allow a client to track mouse cursor

 

 

position at the server side. This means that clients would not

 

 

see mouse cursor movements if the mouse was moved

 

 

either locally on the server, or by another remote VNC client.

 

 

Set this parameter to Disable if you always want to see real

 

 

cursor position on the remote side. Setting this option to

 

 

Ignore is similar to Enable but the remote cursor will not be

 

 

visible at all. This can be a reasonable setting if you don't

 

 

care about cursor shape and don't want to see two mouse

 

 

cursors, one above another.

 

 

 

Use CopyRect

Yes

CopyRect saves bandwidth and drawing time when parts of

 

 

the remote screen are moving around. Most likely, you don't

 

 

want to change this setting.

 

 

 

Restricted colors

No

If set to No, then 24-bit color format is used to represent

 

 

pixel data. If set to Yes, then only 8 bits are used to

 

 

represent each pixel. 8-bit color format can save bandwidth,

 

 

but colors may look very inaccurate.

 

 

 

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

 

 

versa.

 

 

 

View only

No

If set to Yes, then all keyboard and mouse events in the

 

 

desktop window will be silently ignored and will not be

 

 

passed to the remote side.

 

 

 

Share desktop

Yes

If set to Yes, then the desktop can be shared between

 

 

clients. If this option is set to No then an existing user

 

 

session will end when a new user accesses the desktop.

 

 

 

SonicWALL SSL VPN 5.0 User Guide

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SonicWALL SSL VPN 5.0 manual Option Default Description of Options, 125

SSL VPN 5.0 specifications

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