Very want to learn about the principle of remote desktop technology: a computer desktop is how to display on the remote client, is to the desktop screen, a ZhenZhen image transmission to the client? Client's mouse and keyboard commands and how to is performed on a desktop computer, network transmission have some special network protocol? What network security considerations,
All speak of points,

CodePudding user response:

Give you two links consult http://www.bubuko.com/infodetail-669896.htmlhttp://www.cnblogs.com/xilentz/archive/2010/05/28/1746479.html
Display is certainly to screen, but there are a lot of transmitting compression way, such as transmission and only on a smaller screen frame difference change situation can save a lot of bandwidth,
Mouse, keyboard operation can capture the message accordingly, then simulate the same message passed to go,

CodePudding user response:

RDP protocol is not a screenshot? If the screen, how much frequency should be? 25 frames per second? Below this value is not coherent,

CodePudding user response:

Research about VNC in the past two days, from the service side screen and then passed on to the client painted ah, don't know can very card, someone used? Experience?

CodePudding user response:

And which Daniel be familiar with the technology of remote desktop? All say, no matter what said, there are points

CodePudding user response:

Small sprout new passing, VNC used is good

CodePudding user response:

Remote desktop by default: port 3389, you are inside the remote or public remote desktop,
Company to do port mapping in routing,
VNC port 5901, need to open inbound rules on fire wall, add port
LAN remote desktop is instantly refresh, you can choose the local resources in remote desktop remote after brain configuration
Public is according to your network bandwidth, someone download if you LAN, you are from the public network to remote access latency,

CodePudding user response:

Screen, of course, and then compressed transfer to the client (to coherence transform images into 16 or lower)
Mouse, keyboard operation can through the system API to obtain, and then the client is simulated

CodePudding user response:

There are many kinds of method to realize
VNC, desktop screen directly, but the effect is very poor, special CARDS,
Teamviewer, is also the desktop screen, but the H264 compression, effect is better,
Other such as SPICE, it is only sends the change part of the image compression, delay bandwidth is very small, but see video effect is very poor,
RDP should also change part, haven't studied, but RDP effect is very good,
Mouse and keyboard are local collected data and then passed on to the server, this part of the code can refer to VNC, open source,