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Screens VNC is a slick and powerful remote desktop application that does not require a subscription to a service. It's a pay-once-and-done deal. I'm connecting to a remote system using VNC (tigervnc-1.1.0 on client, RealVNC-4.1.2 on server). The client system has two monitors using Nvidia twinview, with an effective resolution of 3200x1200. When I tell vncviewer to use fullscreen, the remote system window (1600x1200) is centered across both monitors with large black spaces on both sides. http://xvfnsc.xtgem.com/Blog/__xtblog_entry/19077202-can-mac-play-fortnite#xt_blog. I tried all the suggestions to use a dummy script. It worked but only if i NEVER wanted to use a monitor attached directly to my PC. If you want remote desktop, as well as the option of a real monitor, the only solution I could find was an HDMI Pass-Through EDID Emulator. I plugged it in and everything worked seamlessly.

In computing, Virtual Network Computing (VNC) is a graphical desktop-sharing system that uses the Remote Frame Buffer protocol (RFB) to remotely control another computer. It transmits the keyboard and mouse events from one computer to another, relaying the graphical-screen updates back in the other direction, over a network.^[1]

VNC is platform-independent – there are clients and servers for many GUI-based operating systems and for Java. Multiple clients may connect to a VNC server at the same time. Popular uses for this technology include remote technical support and accessing files on one's work computer from one's home computer, or vice versa. https://truerload418.weebly.com/bangla-word-download.html.

VNC was originally developed at the Olivetti & Oracle Research Lab in Cambridge, United Kingdom. The original VNC source code and many modern derivatives are open source under the GNU General Public License.

There are a number of variants of VNC^[2] which offer their own particular functionality; e.g., some optimised for Microsoft Windows, or offering file transfer (not part of VNC proper), etc. Many are compatible (without their added features) with VNC proper in the sense that a viewer of one flavour can connect with a server of another; others are based on VNC code but not compatible with standard VNC.

VNC and RFB are registered trademarks of RealVNC Ltd. in the US and some other countries.

History[edit]

The Olivetti & Oracle Research Lab (ORL)^[3] at Cambridge in the UK developed VNC at a time when Olivetti and Oracle Corporation owned the lab. In 1999, AT&T acquired the lab, and in 2002 closed down the lab's research efforts.

Developers who worked on VNC while still at the AT&T Research Lab include:^[4]

• Tristan Richardson (inventor)
• Andy Harter (project leader)
• James Weatherall

Following the closure of ORL in 2002, several members of the development team (including Richardson, Harter, Weatherall and Hopper) formed RealVNC in order to continue working on open-source and commercial VNC software under that name.

The original GPLed source code has fed into several other versions of VNC. Such forking has not led to compatibility problems because the RFB protocol is designed to be extensible. VNC clients and servers negotiate their capabilities with handshaking in order to use the most appropriate options supported at both ends.

As of 2013, RealVNC Ltd claims the term 'VNC' as a registered trademark in the United States and in other countries.^[5]

Etymology[edit]

The name Virtual Network Computer/Computing (VNC) originated with ORL's work on a thin client called the Videotile, which also used the RFB protocol. The Videotile had an LCD display with pen input and a fast ATM connection to the network. At the time, network computer was commonly used as a synonym for a thin client; VNC is essentially a software-only (i.e. virtual) network computer.^{[citation needed]}

Operation[edit]

• The VNC server is the program on the machine that shares some screen (and may not be related to a physical display – the server can be 'headless'), and allows the client to share control of it.
• The VNC client (or viewer) is the program that represents the screen data originating from the server, receives updates from it, and presumably controls it by informing the server of collected local input.
• The VNC protocol (RFB protocol) is very simple, based on transmitting one graphic primitive from server to client ('Put a rectangle of pixel data at the specified X,Y position') and event messages from client to server.

In the normal method of operation a viewer connects to a port on the server (default port: 5900). Alternatively (depending on the implementation) a browser can connect to the server (default port: 5800). And a server can connect to a viewer in 'listening mode' on port 5500. One advantage of listening mode is that the server site does not have to configure its firewall to allow access on port 5900 (or 5800); the duty is on the viewer, which is useful if the server site has no computer expertise and the viewer user is more knowledgeable.

The server sends small rectangles of the framebuffer to the client. In its simplest form, the VNC protocol can use a lot of bandwidth, so various methods have been devised to reduce the communication overhead. For example, there are various encodings (methods to determine the most efficient way to transfer these rectangles). The VNC protocol allows the client and server to negotiate which encoding they will use. The simplest encoding, supported by all clients and servers, is raw encoding, which sends pixel data in left-to-right scanline order, and after the original full screen has been transmitted, transfers only rectangles that change. This encoding works very well if only a small portion of the screen changes from one frame to the next (as when a mouse pointer moves across a desktop, or when text is written at the cursor), but bandwidth demands get very high if a lot of pixels change at the same time (such as when scrolling a window or viewing full-screen video).

VNC by default uses TCP port 5900+N,^[6][7] where N is the display number (usually :0 for a physical display). Several implementations also start a basic HTTPserver on port 5800+N to provide a VNC viewer as a Java applet, allowing easy connection through any Java-enabled web-browser. Different port assignments can be used as long as both client and server are configured accordingly. A HTML5 VNC client implementation for modern browsers (no plugins required) exists too.^[8]

Although possible even on low bandwidth, using VNC over the Internet is facilitated if the user has a broadband connection at both ends. However, it may require advanced NAT, firewall and router configuration such as port forwarding in order for the connection to go through. Users may establish communication through Virtual Private Network (VPN) technologies to ease usage over the Internet, or as a LAN connection if VPN is used as a proxy, or through a VNC repeater (useful in presence of a NAT).^[9][10]

Xvnc is the Unix VNC server, which is based on a standard X server. To applications, Xvnc appears as an X 'server' (i.e., it displays client windows), and to remote VNC users it is a VNC server. Applications can display themselves on Xvnc as if it were a normal X display, but they will appear on any connected VNC viewers rather than on a physical screen.^[11] Alternatively, a machine (which may be a workstation or a network server) with screen, keyboard, and mouse can be set up to boot and run the VNC server as a service or daemon, then the screen, keyboard, and mouse can be removed and the machine stored in an out-of-the way location.

In addition, the display that is served by VNC is not necessarily the same display seen by a user on the server. On Unix/Linux computers that support multiple simultaneous X11 sessions, VNC may be set to serve a particular existing X11 session, or to start one of its own. It is also possible to run multiple VNC sessions from the same computer. On Microsoft Windows the VNC session served is always the current user session.^{[citation needed]}

Users commonly deploy VNC as a cross-platform remote desktop system. For example, Apple Remote Desktop for Mac OS X (and more recently, 'Back to My Mac' in 'Leopard' - Mac OS X 10.5) interoperates with VNC and will connect to a Unix user's current desktop if it is served with x11vnc, or to a separate X11 session if one is served with TightVNC. From Unix, TightVNC will connect to a Mac OS X session served by Apple Remote Desktop if the VNC option is enabled, or to a VNC server running on Microsoft Windows.^[12]

In July 2014 RealVNC published a Wayland developer preview.^[13][14]

Security[edit]

By default, RFB is not a secure protocol. While passwords are not sent in plain-text (as in telnet), cracking could prove successful if both the encryption key and encoded password were sniffed from a network. For this reason it is recommended that a password of at least 8 characters be used. On the other hand, there is also an 8-character limit on some versions of VNC; if a password is sent exceeding 8 characters, the excess characters are removed and the truncated string is compared to the password.

UltraVNC supports the use of an open-source encryption plugin which encrypts the entire VNC session including password authentication and data transfer. It also allows authentication to be performed based on NTLM and Active Directory user accounts. However, use of such encryption plugins makes it incompatible with other VNC programs. RealVNC offers high-strength AES encryption as part of its commercial package, along with integration with Active Directory. Workspot released AES encryption patches for VNC. According to TightVNC,^[15] TightVNC is not secure as picture data is transmitted without encryption. To circumvent this, it should be tunneled through an SSH connection (see below).

VNC may be tunneled over an SSH or VPN connection which would add an extra security layer with stronger encryption. SSH clients are available for most platforms; SSH tunnels can be created from UNIX clients, Microsoft Windows clients, Macintosh clients (including Mac OS X and System 7 and up) – and many others. There are also freeware applications that create instant VPN tunnels between computers.

An additional security concern for the use of VNC is to check whether the version used requires authorization from the remote computer owner before someone takes control of their device. This will avoid the situation where the owner of the computer accessed realizes there is someone in control of their device without previous notice.

See also[edit]

References[edit]

1. ^Richardson, T.; Stafford-Fraser, Q.; Wood, K. R.; Hopper, A. (1998). 'Virtual network computing'(PDF). IEEE Internet Computing. 2: 33–38. CiteSeerX10.1.1.17.5625. doi:10.1109/4236.656066.
2. ^The VNC family of Remote Control Applications: a list of VNC variants
3. ^'VNC Frequently Asked Questions (FAQ)'. 1999. Archived from the original on 15 August 2000.
4. ^RealVNC Executive Profiles
5. ^Copyright and trademarks RealVNC. Accessed Feb 23, 2018.
6. ^'RealVNC - Frequently asked questions'.
7. ^'UltraVnc Configuration'.
8. ^'noVNC'.
9. ^'OpenWRT VNC repeater'.
10. ^'uVNC repeater'.
11. ^AT&T Laboratories Cambridge (1999). 'X-based VNC server'. Virtual Network Computing. Archived from the original on 19 March 2007. Retrieved 24 March 2007.
12. ^'OnlineVNC Server for Windows OSes'.
13. ^'VNC® Wayland Developer Preview'. 8 July 2014. Archived from the original on 14 July 2014. Retrieved 10 July 2014.
14. ^'RealVNC Wayland developer preview email'. freedesktop.org. 9 July 2014.
15. ^How secure is TightVNC? TightVNC Frequently Asked Questions. TightVNC.com Accessed Feb 23, 2018

External links[edit]

• AT&T VNC - Original AT&T-Cambridge VNC website

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Since we all are working from home due to covid-19 there are instances when we need to coordinate and connect with our team mates or clients for business discussions and other things. This time you might need to share your screen with the person on call so that you can elaborate wisely about the things you are talking about.

While there are several screen share tools to look for, Windows itself comes up with its native tools with the help of which you can share your screen with others. Wondering how you will do that?

Do not worry; we are here to explain how you can share exactly what's on your screen in Windows 10 with others. These ways can be helpful for you if you are handling something that needs technical support; you want to perform a demonstration.

Check out these super ways to share screen through screenshots, screencast and screen share in Windows 10 all without the use of any extra application.

How To Screen Share In Windows 10?

Before we discuss some native screen sharing tools in Windows 10, you can try the Windows 10 Remote Desktop feature on your system to allow others to remotely access your PC. We have discussed how to set and use remote desktop in Windows 10 in this detailed guide.

Step 1: Use Print Screen To Take Screenshot

Indeed this is one of the easiest and the basic methods to share your desktop remotely. The only drawback is that this will help you share a static image of the screen. Print screen key was quite useful when the operating systems used to work on the command lines. This key would literally send the text on the screen to the printer but now with the print screen key you can capture your entire screen to the clipboard.

What will it do might be hunting your mind? By using the print screen you get the screen saved to clipboard and later on you can use Ctrl+V to paste in the programs like Paint, Microsoft Word or even your chat communication platform. These screenshots can be later edited in a photo editing software, like TweakShot where you can crop, highlight important things or blur confidential information.

Other Print Screen controls includes-

• Win key + Print Screen:- saves images to a separate Screenshot folder within your PC.
• Alt key + Print Screen:- will only capture the active window.

Step 2: Capture Screenshot With Snip & Sketch Tool

Snip & Sketch tool is yet another way to capture screenshots but it is useful nonetheless. To use the Snip & Sketch tool you need to either search it from the search bar or press Windows + Shift + S to open this tool's interface. You can use this tool to choose between Rectangular, Freeform, Window, or Full-Screen Snip.

Just like the Print Screen key, the screenshot is not ready to paste using Ctrl + V. You can use these images to edit like highlight a crop ensuring that you save the capture if you further wish to make any edits.

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Also Read: All You Need To Know About Windows Snip & Sketch Tool

Step 3: Use Quick Assist To Share Your Screen

Quick assist is an amazing feature of Windows 10 to share your screen with someone else and let them take the control. Ensure that you share your screen only with the trusted person. Also, remember you can only use Quick Assist if both the parties will have Windows 10. Follow the steps below to start sharing your screen with Quick Assist.

• In the search bar, type in Quick Assist.

• Open the App. And choose from Get Assistance or Give Assistance.

• Now, ask the other person to open the app and choose any one option (other than the one you are opting).
• Once chosen to get or give assistance by both the parties. Login into Microsoft account.

• The parties will get a 6-digit code (valid for only 10 minutes). Enter the code into ‘code from the assistant' and click ‘share screen'.
• Others can now choose ‘Take Full Control' (this will allow him to control your keyboard and mouse as well) or ‘View Screen' (which only allows you to see the screen with no controls). If you agree, click Allow.
• Now, one party can control the screen while the other can just see. Ensure that while the other party is controlling your system you do not interrupt in between and it might create confusions.
• The controlling party can annotate notes, use task manager or even reboot your system when needed. After restarting, your system will auto rejoin the Quick Assist session.
• Once everything is done, click the End button to cut the connection.

Must Read: How to assist someone remotely using Quick Assist

4. Create A Document Using Steps Recorder

Steps Recorder is yet another native tool of Windows 10 that records the exact steps that you take with screenshots and notes. Follow the steps below use Steps Recorder to record screen:

• In the search bar type in Steps Recorder and open the app.
• A recording bar will open. Click Start Record and start with what you want to show.
• Once started the program will track everything including keyboard shortcuts, but does not record passwords or other things you type.
• If you find something that should draw attention, click Add Comment. this you can highlight the specific section of the screen by providing a comment.
• Once you are done with everything, click Stop Record. After this window will open with a Steps Recorder file. Click Save to get a ZIP file, which contains the MHT file of your steps.
• Steps Recorder does not record a video but it results in a page containing commented screenshots of every action that you have performed.

Read Further: How to use hidden steps recorder in Windows 10

5. Record A Video With Game Bar

When it comes to Windows native tools to record screens, always rely on the Game Bar. the Game Bar is actually designed to record and stream video games but you can also record other programs excluding your desktop. Well we are here to tell you how to use the Game Bar to record a video to share screen online. Steps below to use Game Bar:

• Press Windows + I keys to open Settings.
• Now click on Gaming. Check that ‘Record game clips, screenshots, and broadcast using Game Bar' is enabled.

• Now, press Windows key + G to open the Game Bar. It might show a message saying ‘Gaming features not available'.
• The message shown is because it does not detect your program as a game. During such instances simply click Enable gaming features for this app to record gameplay.
• In the capture window that opens, click Start Recording. You can also press Windows + Alt + R to start recording.

This is it! Your screen is now being recorded. You will see a small panel with the timer. You can also click the microphone icon if you want to record audio. Once finished, click the Stop icon. The recorded file will be saved as an MP4 file in the Captures folder of your system's Videos library.

Wrap Up:

Well, these were some of the best ways to share your screen online remotely with the other person sitting far from you.

Alternatively there are several screen sharing or recording software like TweakShot Screen Capture that you can use to share or record your screen. With this amazing screen capture tool, you can not only capture the screen but also create videos, edit images and deliver desired results.

Click Here To Download TweakShot

FAQ

How to share screen in Windows 10 using Quick Assist?

To do this, search and select Quick Assist from the search bar on the taskbar. On the next window, select Get Assistance or Give Assistance. Tell the other person to open the app and choose an alternate option then one you selected. Now login into Microsoft account. Here, you need to enter 6-digit code that you will receive. Once done, select Share Screen.

Is it possible to share a screen in Windows 10 without a tool?

Yes, you can share a screen in Windows 10 without using any screen sharing tool. To do this, you can use built-in utilities such as Quick Assist to easily share your screen with anyone for quick help. You can also try native tool of Windows 10 called Steps Recorder to record each step on your device and share it with another person for help.

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Which is the best screen sharing software?

If you aren't using Windows remote desktop connection to share screen, then you can consider using TeamViewer to share your screen with others It is one of the finest tools available to share screen with others easily. It offers tons of useful features to make screen sharing seamless for you.

Which is the best screen capture software?

If you aren't using Windows built-in utilities to capture screen, then we suggest you should use TweakShot Screen Capture or OBS Studio for effective results. These powerful tools help you record and capture screens easily with multiple built-in features. It also allows you to share a recorded/captured screen with others in a single click.

How do I capture a screenshot on my PC?

You can click Prt Sc button on your keyboard to capture the entire screen including all open windows. To capture active or foremost window, simply click Alt + Prt Sc button. You can also try Win + Prt Sc keys to capture entire screen on Windows. Here, screenshot will be placed in your clipboard, which you can copy later.

How did you find this article? Which screen sharing tool do you use to share your screen on Windows 10? Let us know in the comment section below.

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