Saturday, December 11, 2010

Remote Control



So-called remote control, refers to management personnel in distributed through computer networks and different dial-up or both access Internet methods, unicom shall be control computer, would be charged computer desktop environment display to their own computer, through the local computer for a computer configuration, software installation procedures, modify, etc. Remote sensei (WOL), that is, through the local area network to realize remote boot.

Remote control concepts

Here the distance is not literally long-distance, usually through the network control remote computer. Early remote control often refers in LAN in the remote control is concerned, with the spread of the Internet and the technological innovation, now of the remote control of remote control often refers to the Internet. When the operator to use a master the computer control was charged with the computer, like sitting on the computer screen accused before as, can start accused of the computer application that can use or steal accused the computer files material, even can use the computer accused the external printing equipments (printer) and communication equipment (modems or special line, etc.) for printing and access networks outside and the connection, like using remote remote TV's volume, transform channels or switch as TV sets. However, there is a concept needs clearly, that is the only master computer keyboard and mouse instructions transmitted to remote computers, at the same time will be charged the computer screen picture by man and communication lines. That is to say, the computer control was accused of operation seems to be in front of the computer, essence is conducted on the remote computer implementation, whether open the file, or browse the Internet downloads are stored in a remote accused of end in a computer.

Remote control must be through the network to carry on. Located in local computer is operating command sends out the end, called master side or client, the local accused of computer called accused of side or the server. "Distance" does not equate to long-distance control terminal and accused the same LAN can be located in the same room, also can be connected to the Internet at any position of two or more computers.

Technical principle

Remote control is on the network computer (master by the Remote/client) distance to control another computer (accused the Host/server) technology, mainly through Remote control software realization.

Remote control software working principle: remote control software generally points Client program (are) and Server program (Server) two parts, will usually be Client program installation to master the computer, will Server installed to accused the computer. When using the client program in a computer to be accused of terminal server program signal, to set up a special distance service, and then through the distance service, use all sorts of remote control function sends remote control command, control was charged with the computer in various applications run.

Technology development

Development experience

In a computer remote control technology, began in DOS era, only when the technically no big change, network not well developed, and the market demand, so no more remote control technology has not caused more people's attention. But, with the height of the development of computer network, the management and technical support needs, remote operation and control technology and has attracted the attention of people. Remote control general support the following these network modes: LAN and WAN, dial-up way and Internet way. In addition, some remote control software also support through serial, parallel, infrared port to remote machine control (but said here remote computers, but only to a limited range within the scope of the computer). Traditional remote control software generally use NETBEUI, NETBIOS, IPX/the SPX, TCP/IP protocol to realize the remote control, however, with the development of network technology, many remote control software available through the Web page to Java technology to control remote computers, so can realize under different operating system of remote control.

The TCP protocol is remote control

Basically has Windows system comes with remote desktop, pcAnyWhere (symantec), online 98% of remote control software is used to realize remote control TCP protocol (including those of a few), using TCP protocol of remote control software is the advantage of stability, connect a high success rate, Defect is both sides must have one party has the public network IP (or in the same connection), they need to do on a router port mapping. This means that you can only use these software control have lo-fi IP computer or can control the same connection of computer (such as control the company in other computer). You may not use TCP protocol software from one company's computer, control another company's internal computer, or from Internet cafes, hotel control your office computer, because they are in different connection. More than 80% of the computer in the connection (use routing share Internet connection) for the method, namely, TCP connection software could not penetrate the defects of software white-box utilization rate, make the discount. But now many remote control software support from accused of the active link to control terminals, can make up the defects to a certain extent.

Remote control application

Telecommuting. 1.

Such remote office way not only greatly alleviated the urban traffic, reduce the pollution of the environment, but also forgave people to commute the hustle and bustle of toil, more can improve enterprise employee's work efficiency and interest.

Long-range education 2.

Using remote technical, commercial company can realize and user's remote communication, adopting interactive teaching mode, through actual operation to training users, the user from technical support professional there to study sample knowledge very easy. But between teacher and students can also use this remote control technology to achieve the teaching problems of communication, students can not meet the teacher can get, teacher intended to counseling and lecturing. Students can also directly on the computer in the calculus and solving problem sets, in this process, the teacher can easily see a student trains of thoughts and steps, and performs to real-time guidance.

3. Remote maintenance

The computer system technical service engineers or management personnel through remote control target maintenance computer or needed maintenance management of network system, configuration, installation, maintenance, monitoring and management, to solve past service engineer must attendants to solve the problem. Greatly reduces the computer application system maintenance cost, utmost reduces users losses, achieve high efficiency and low cost.

Remote assist 4.

Anyone can use skills through remote control technology for distal in front of a computer users to solve problems. Such as the installation and configuration software, painting, fill out a form to help customers to solve problems.

The technical trend

Windows system of remote control

Remote control is no mystery, Windows XP system provides a variety of simple remote control means, such as remote desktop connections.

Powerful function of remote control software

PCAnywhere is by Symantec (Symantec) company produces the remote control software, it is powerful, support almost all network connection mode and network protocol, using PCAnywhere, computer management personnel can easily realize in local computer control of the remote computer, make both the computer can work together. In the meanwhile, remote control PCAnywhere also has more perfect the security strategy and password verification mechanism, so as to ensure the safe distance was accused of host.

Centralized management many sets of the remote computer

PCAnywhere's powerful, but also some difficult to overcome the disadvantages: software installation package is too big, window moving speed too slow, remote operation in the network in bad situations can be felt significantly delay, etc. Remote Administrator has shunned these shortcomings, and it can multiple Remote computer on the centralized management, can greatly improve the work efficiency.

With IE browser on remote control

Most of the remote control software must be remote control software is installed in the control terminals and were accused of end, it can achieve the purpose of the remote control. However, it is an exception RemotelyAnywhere in remote control software is very special, it is the biggest characteristic of it in the software installation accused and Settings, control terminals can pass IE browser to realize remote control. Besides having remote control functions, but also can undertake file transfer, chat, management setting operation.

Access code connected by remote control

Charged at eight access code, web page code input connection box, or directly on the IE browser input specific URL way can connect to master the other way, compared with more simple, such as connection is established YiWei help desk.

Small remote control tools

Above the remote control software installed wants relatively more complicated, if application is more onefold, we can use simpler remote control tools, these tools and lots more.

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