VNC Enterprise Edition是业界标准的VNC（Virtual Network Computing) 的增强版本，专为企业环境应用和穿越Internet而开发。它完全由VNC的最初发明者设计和开发，Enterprise Edition提供更好的稳定性和更容易管理的安全性。
VNC（Virtual Network Computing，虚拟网络计算）最早是一套由英国剑桥大学AT&T实验室在2002年开发的轻量型的远程控制计算机软件，其采用了 GPL 授权条款，任何人都可免费取得该软件。VNC软件主要由两个部分组成：VNC server及VNC viewer。用户需先将VNC server安装在被控端的计算机上后，才能在主控端执行 VNC viewer 控制被控端。
VNC server 与 VNC viewer 支持多种操作系统，如 windows，Linux，MacOS 及 Unix 系列（Unix，Solaris等），因此可将 VNC server 及 VNC viewer 分别安装在不同的操作系统中进行控制。RealVNC 的优越性还在于如果操作系统的主控端计算机没有安装 VNC viewer，也可以通过一般的网络浏览器（如 IE 等）来控制被控端（需要 Java 虚拟机的支持）。
整个 VNC 一般运行的工作流程如下：
（1） VNC 客户端通过浏览器或 VNC Viewer 连接至 VNC Server。
（2） VNC Server 传送一对话窗口至客户端，要求输入连接密码（可能为空），以及存取的 VNC Server 显示装置。
（3） 在客户端输入连接密码后，VNC Server 验证客户端是否具有存取权限。
（4） 若是客户端通过 VNC Server 的验证，客户端即要求 VNC Server 显示桌面环境。
（5） 被控端将画面显示控制权交由 VNC Server 负责。
（6） VNC Server 将把被控端的桌面环境利用 VNC 通信协议送至客户端，并且允许客户端控制 VNC Server 的桌面环境及输入装置。
RealVNC VNC Enterprise 5.x | MacOSX | 20 Mb
Enable remote control connections between Windows, Mac OS X, UNIX, and Linux computers. License the software to suit your needs, from individual, private use to a robust, responsive, ultra-secure enterprise-class solution.
VNC is remote access and control software for an unrivalled mix of Windows, Mac, UNIX and Linux computers. With a simple peer-to-peer architecture, no agents or centralized servers are required.
Enterprise
Fully-featured, ultra-secure, easily-administered remote control for personal and for medium and large-scale commercial use.
Features:
Cross-platform remote control
Enable connections to be established between computers running an unrivalled mix of Windows, Mac OS X, UNIX, and Linux operating systems.
VNC authentication
Prevent unauthorized access with a password specific to VNC. Note passwords are always encrypted, even if encryption is turned off or not supported.
128-bit AES encryption
Encrypt connections using 128-bit AES, for high performance encryption. This means that all data transmitted while connections are in progress—keystrokes and mouse movements made by users; screen captures sent back in order to display the desktop—are resistant to packet sniffing and tampering, man-in-the-middle attacks, and other malicious eavesdropping.
System authentication
Authorize users to connect using the already-familiar credentials of their own user accounts on a computer. Note passwords are always encrypted, even if encryption is turned off or not supported.
Optimized performance
Patented algorithms for encoding screen data enable the user experience to be as seamless as your network connection will allow.
Printing
Enable connected users to print files directly to printers connected to their own computers.
File transfer
Enable connected users to transfer files in either direction, and also share with other users connected at the same time.
Chat
Enable connected users to chat to other users connected at the same time, or with a host computer user.
Dedicated support channel
Get help when you need it, and in addition receive free upgrades for the duration of the contract. On expiry, you can renew for a competitive fee to continue receiving help and upgrades.
Single sign-on authentication
Automatically authorize users to connect using the credentials they have already entered to log on to their own computers. Note all computers must be in a managed network environment, with (for example) a Kerberos authentication server.
256-bit AES encryption
Encrypt connections using ultra-secure 256-bit AES, for ultra-high performance encryption. This means that all data transmitted while connections are in progress—keystrokes and mouse movements made by users; screen captures sent back in order to display the desktop—are resistant to packet sniffing and tampering, man-in-the-middle attacks, and other malicious eavesdropping.
Powerful deployment strategies
Remotely deploy, license, and configure VNC on potentially thousands of computers.
Configure and lock down using policy
Remotely configure and license VNC using policy. This also means VNC applications are locked down and cannot be changed by users.
Universal architecture supported:
OS X 10.9 (Mavericks)
OS X 10.8 (Mountain Lion)
OS X 10.7 (Lion) Server
OS X 10.7 (Lion)
OS X 10.6 (Snow Leopard)
OS X 10.5 (Leopard)
OS X 10.4 (Tiger)
Home Page – http://www.realvnc.com/
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