VNC Viewer 4.4 Enterprise Edition User Guide
Contents
1. with this task are port numbers In this way there are now many systems using similar private IP addresses however because those numbers only ever exist in local domains there is never any confusion Of course most people never see an IP address To make network addresses even more memorable than the dotted decimal notations they are usually converted into named addresses Such conversions are handled by the Domain Name System and your browser uses it every time you visit a web site Windows Version Support VNC Viewer Enterprise Edition supports all versions of Windows since Windows 98 29 Copyright RealVNC Ltd 2008 All Rights Reserved2. information on VNC Server please see the separate user guide Security Authentication Open network connections pose a number of security challenges and the VNC system has now been updated to provide robust solutions In addition to the possibility of attackers attempting to gain server access there is also the chance that false servers can spoof or mimic real ones and lure users into disclosing important information To defend against server attackers VNC Server Enterprise Edition provides secure password protection To defeat server spoofers VNC Servers are now required to prove their authenticity by providing a unique identity code before any viewer details are declared These features are combined with the new high strength link encryption to present a sizeable barrier to attackers VNC link encryption Network links in general and the internet in particular pose an ever present threat of system spoofing and eavesdropping on connections between systems The VNC Enterprise Edition authentication system s Copyright RealVNC Ltd 2008 All Rights Reserved defeats the former threat while strong data encryption of the type used by VNC presents a significant barrier to eavesdroppers When either VNC Viewer or VNC Server enables encryption both parties exchange encryption keys From that moment all information is encrypted prior to transmission me Copyright RealVNC Ltd 2008 All Rights Reserved REAL Inst
3. VNC Viewer 4 4 Enterprise Edition User Guide REAL Ve C Copyright and Confidentiality Copyright Statement Copyright RealVNC Ltd 2008 All rights reserved No part of this documentation may be reproduced in any form or by any means or be used to make any derivative work including translation transformation or adaptation without explicit written consent of RealVNC Confidentiality Statement All information contained in this document is provided in commercial confidence for the sole purpose of use by an authorised user in conjunction with RealVNC s products The pages of this document shall not be copied published or disclosed wholly or in part to any party without RealVNC prior permission in writing and shall be held in safe custody These obligations shall not apply to information which is published or becomes known legitimately from some source other than RealVNC Registered office VNC House Sturton Street Cambridge CB1 2SN United Kingdom www realvnc com Author Copyright RealVNC Ltd 2008 All rights reserved Issue 4 1 1 System Release 4 1 1 Date 15 May 2008 2 Copyright RealVNC Ltd 2008 All Rights Reserved Contents MECU HON a mid Gaemmenerensrwererrrecserr aren erie rttentpernreereenrerrrnrr rr ener ren E A Treen tT tert 4 BS I esperar seatip senor rata E se cuted sce EA E E E 4 PANU AG gis g 10 ore 10 6 amp Reve Deer Pe OnTRr ne Tereaen veer vear ria E E A reenter
4. The VNC Address Book saves all your user names passwords connection input and display options so that you don t have to edit settings each time you start a new VNC Viewer connection To start the VNC Address book i Click the Windows Start button then point to Programs or All Programs then point to RealVNC VNC Address Book 2 This displays the VNC Address Book dialog BE VNC Address Book File Edit View Tools Address book toolbar gt 5 By amp Alphabetic Hierarchical Your address book is empty Details Server Encryption 0 entries Master Password Required You can add address book entries to the VNC Address book from this dialog or you can add to the address book from the VNC Viewer Toolbar while connected to a server To add an entry to the address book L On the address book toolbar click the New Entry icon Eil This displays the Properties dialog BA Properties Server Options REAL Configure the server address and authentication details C Server Basic Server details Server I 7 Encryption Let server choose default Authentication C Username C Password Confirm ve In the Server text field enter the server name or the IP address 3 On the Encryption drop down list select your required encryption 4 If you would like to store your user name and password for this server in the Authentication area enter the us
5. was introduced Of the 4 2 billion possible addresses almost all of them are still used as unique public addresses However in the revised plan three groups of addresses were held aside for use as private addresses e 10 0 0 0 to 10 255 255 255 e 172 16 0 0 to 172 31 255 255 e 192 168 0 0 to 192 168 255 255 To avoid confusion these ranges are never used as public addresses However when company xyz needs to connect their many internal computers to the Internet they might only be given a single public address say 80 42 0 252 They would then connect a Gateway system to the Internet and give it that unique public address Situated on the other side of that gateway would be the company s local network and every system in that local network would receive a private IP address For small local networks the most common private address range is that which starts at 192 168 0 0 Every computer in the local network or subnet will use their number that is unique to them within the local network However the public identity for all of those local systems as they pass information out across the Internet will always be that of the gateway 80 42 0 252 It is the job of the gateway to translate addresses between the local and wider networks The gateway must ensure that messages and data are sent through to the correct locations without the private addresses ever leaking out Assisting 298 Copyright RealVNC Ltd 2008 All Rights Reserved
6. A list of valid port numbers and their uses is maintained by the Internet Assigned Numbers Authority and can be viewed at http www iana org assignments port numbers Port 5900 is officially registered with IANA for VNC use 27 Copyright RealVNC Ltd 2008 All Rights Reserved REAL IP Addresses What is an IP address An IP address is a unique address given to every device connected to a network of any size from a two system link up at home to every system on the Internet IP addresses are written as four decimal numbers separated by full stops such as 192 168 0 4 This is called dotted decimal notation and is used as a means of concealing the equivalent real address that is actually used by computers and networking equipment At the inception of the Internet in the 1960s and 1970s even by wildest estimates no one ever expected they would need more than the seemingly inexhaustible 4 2 billion unique address patterns However two factors have proved this to be wrong 1 The proliferation and expansion of the Internet rA The inefficient way in which those addresses were originally handed out to organisations and companies The result was that by the early 1990s it was already apparent that at the projected growth rates the reserve of 4 2 billion addresses would soon all be gone In order to prolong the current stocks of numbers the allocation of addresses was greatly tightened and the idea of public and private addresses
7. VNC Server such as excessive pointer acceleration leave this option disabled Ctrl and Alt These options allow you to enact CTRL and or ALT keypress sequences in combination with other keys on the remote system that would otherwise be interpreted by the local system For instance to quickly change between applications on the remote system you need to send ALT and TAB However if you press ALT and TAB on the keyboard your local system will respond If however you display the F8 menu select the Alt option and then press the TAB key the remote system responds instead Send F8 This option allows you to send an F8 command to the remote system This is necessary because F8 is trapped at the VNC Viewer in order to provide access to the F8 menu and is not passed on to the 21 Copyright RealVNC Ltd 2008 All Rights Reserved REAL remote system If F8 is altered in VNC Viewer Options as the access to the menu then this menu option changes accordingly Send Ctrl Alt Del This option allows you to send the Ctrl Alt Del key combination to the remote system NB As an alternative to using this menu option most Windows versions will pass the following keypress sequence to the remote system to achieve the same result Shift Ctrl Alt Del Refresh Screen Requests a complete screen refresh from the remote system New Connection Displays the Connection dialog which allows a new connection to an alternative system NB The con
8. VNC Viewer will use the same proxy servers as Microsoft Internet Explorer uses if any In environments where a proxy server is needed to access computers on other networks and the Internet Microsoft Internet Explorer may already be set up with the necessary proxy server settings to allow you to make these connections This option will attempt to use those settings if they exist VNC Viewer will use the proxy server details you supply in the boxes below Please contact your network administrator to determine the correct settings for these boxes lt 13 Copyright RealVNC Ltd 2008 All Rights Reserved REAL Ve VNC Toolbar When you hover your mouse at the top of your VNC Viewer window you see the VNC Viewer Toolbar mri F id w S amp a 14 New Connection Creates a new VNC Viewer connection to a remote server in another window Save Connection Saves the configuration settings for the current connection into the VNC Address book Close Connection Closes the current VNC Viewer connection Options Displays the VNC Viewer Properties dialog Full Screen Mode Uses the entire screen to display the remote sever desktop Click again to exit Full Screen Mode Send Ctrl Alt Delete Sends a Ctrl Alt Delete command to the remote server You can also press Shift Ctrl Alt Delete Send Files to Server Sends a file from the local machine to the remote server You can also copy files to the clipb
9. Zs Configure the settings as required then click OK All of your settings for this connection will be saved 19 Copyright RealVNC Ltd 2008 All Rights Reserved To change VNC Address Book settings From the Tools menu select Options This will display the VNC Address Book options dialog Options Server password behaviour What should the address book do with any server passwords received from the VNC Viewer Don t save server password Save server password O Encrypt server password recommended Master password Change UT behaviour Minimise to Tray Description Configure what VNC Address Book does when a shortcut containing a password is saved from VNC Viewer e Don t save server password removes the server password from the shortcut prior to saving it You will be prompted to enter it each time you connect e Save server password saves the server password in an obfuscated but not encrypted form You will not be Server password behaviour prompted to enter a password when you connect e Encrypt server password saves the password in an encrypted form You will be prompted to enter your master password when you connect see below e Always ask causes VNC Address Book to ask which of the above options to use each time a shortcut containing a password is saved from VNC Viewer When you enter your master password VNC Address Book can remember it for a certain amount of time If this option is
10. enabled you Master password will not be prompted for it again until this period has elapsed You can also change your master password here Doing so will resave all address book entries with encrypted passwords If enabled closing or minimising VNC Address Book will send it to the system tray This can be useful if you are using it to manage a large Minimise to tray number of VNC Server passwords as your master password will not be remembered if you exit VNC Address Book 90 lt Copyright RealVNC Ltd 2008 All Rights Reserved VNC Viewer F8 menu In addition to the Viewer toolbar VNC Viewer has a more extensive options menu Press F8 to display this Restore Minimize Maximize Close Full Screen Relative Pointer Motion Ctrl Alt Send F8 Send Ctrl Alt Del Refresh Screen Send Files to Server Save Connection New Connection Options Connection Info About NB The F8 key setting can be altered to use any of the other function keys Full screen Hides the Windows menu bar and VNC Window so that the screen image of the remote system fills the entire local desktop Relative pointer motion In some cases in particular when connecting to a hardware based VNC Server or when remotely accessing an application that interprets mouse pointer input in particular ways selecting this option can resolve mouse pointer issues Unless you are experiencing problems with the mouse pointer on the
11. 4 VNC TOE ately odo a meme er eee ONT tee me etre Ut re mn terre me ate E amt yr Ramen rer aay ty te terte ea ney 4 WTS end Ch A NN Se eurin E beta AE ta tah rerio e EEE esa 6 AUN UG ON ea A nc ctsraea pecan E ood gee ra ea nad eocnaetpa ie anes ES 6 Making a VNC Viewer CONNECHION uu cccesssssssssesessessssssssessessssesssussessssssssusscsssecsssusseseseesssessesussescseesscsscusseeeseeseceeseeseeees 6 Starting VNC Viewer from the Quick Launch toolbar ICON eeesessesssesessesesessesesesecsseeesseseeseseessseseeseseeneseenees 7 ITCH TAO ON tae geet et hipaa ong ee E T 9 Dipy OD ION eraen mwe ctr err E erred Te mrt ur enrnt entre E E ete tT vere eerter no er eee rrr 10 IV A VS csc scene cee ect nancy sera eaten aces canon cence evn secec EAE AE 11 ConnecHiano PUNS perenne eer E ia Norn enero EE nO ane per eee Or rset nee mn E EE meres See 12 VNC TOON AV resi gests tae ones estos estes scale EE EN EE nce te cece apa a trates tens E ere REN 14 VAC C A nE geese cept adage esc ee cde cease east ccpn ents ct E events taeneatakvecrsdessearaiee 15 d Ror aie E T E A sve teenrer overt Tene tremren E A E enn tere 15 YNE Fe 01 9 g Co Sener ene neon arene nt ne no E oe eee eer eo noe eee epee ee 16 Copying messages from CIOS wcvecececsucicsasicvenriudeubaausivactsaanustaitdousbtaadtusssuccssnseu eeN EE aE EENE EEN aE EEEE 17 The VNC Address BOOK sensssssesssessssessseesssessssesssresssessseosstessstessseosstessteosseeosstesstessstossstossteessstesstesste
12. P tunnelling support REAL Display Inputs Connection Expert Shared connection do not disconnect other viewers Use single sign on if the VNC Server supports it Proxies Do not use a proxy recommended Use Microsoft Internet Explorer proxy settings Use these proxy settings C Use these settings for all new connections NB Some companies and home networks prevent connections from being made to computers in other networks including other machines on the wider internet In such cases you may be provided with access to a proxy server which acts as a gateway to other networks 12 Copyright RealVNC Ltd 2008 All Rights Reserved Input Option Description Shared connection do not disconnect other viewers Use single sign on if the VNC Server supports it Do not use a proxy recommended Use Microsoft Internet Explorer proxy settings Use these proxy settings When enabled the VNC Viewer will NOT request that any other existing connections to the remote server are terminated When enabled if the server supports single sign on the Viewer s user logon credentials will be presented to the server automatically If these credentials are refused then the user will be prompted to supply a username and password VNC Viewer will make a direct connection to any VNC Server In most cases a proxy server will not be necessary to use VNC and so this option is the recommended default
13. XX XX XX XX XX XX XX Do you wish to accept the signature and continue connecting oe Copyright RealVNC Ltd 2008 All Rights Reserved VNC Viewer window Your local computer desktop 4 If required you will then be prompted to enter your username and password for the remote server VNC Authentication Grape 128 bit AES Encryption E 5 The VNC Viewer will show you the current desktop of the remote system and will allow you to control it eo VNC PDF ARCHIVE PETER l VNC Viewer toolbar s oe oe xe Bs Om ao K VNC Server 4 4 Ente IA vmw xp PRo NB You can run two or more VNC Viewer Windows in order to view multiple remote systems Starting VNC Viewer from the Quick Launch toolbar icon During the VNC installation an option was available to create a VNC Viewer quick launch icon If this option was chosen then your system will show a VNC icon on the Windows quick launch bar eave lt _ VNC Viewer icon L Click the VNC icon to launch VNC Viewer If you wish to create a VNC Viewer quick launch icon click and drag the VNC Viewer entry from the Start menu over the quick launch area Position the cursor between two existing quick launch icons a small vertical black line will appear and then release the mouse button Mr n Copyright RealVNC Ltd 2008 All Rights Reserved Ve NB If the Quick Launch toolbar is not visible right click on the Windows task bar and
14. al keys directly to server Print Screen Alt Tab Alt Escape Ctrl Escape Enable mouse input Mouse movements and clicks are passed to the server Allows you to emulate a 3 button mouse to the remote server Enable 3 button mouse emulation system using a 2 button mouse To replicate the middle mouse button press the left and right button simultaneously 11 Copyright RealVNC Ltd 2008 All Rights Reserved REAL When enabled the mouse position will be sent less frequently to the remote server This can be useful for slow modem Rate limit mouse events connections because bandwidth is reduced However it can result in a noticeable jerkiness to mouse pointer movement Any text that is cut or copied to the Windows clipboard of the Viewer system is also placed on the clipboard of the server and vice versa This allows cut copy and paste to and from the Share clipboard with server remote server and vice versa NB Servers can be configured to refuse clipboard data from viewers Allows you to send and receive files between the viewer and Enable file transfer server Allows you to alter the function key usually F8 that displays Menu Key the option menu within the VNC Viewer window Choose None to disable this feature Connection options The Connections tab allows you to configure how you connect to the remote server VNC Viewer Properties Connection Options Enable or disable connection sharing or HTT
15. alling VNC Viewer VNC Viewer is an optional component of the VNC Enterprise Edition installer It is also available as a stand alone program for download from our web site The rest of this document will assume that you have done a full install of VNC Enterprise Edition including VNC Viewer Please see the VNC Server user guide for details Starting VNC Viewer 1 Click the Windows Start button then point to Programs or All Programs then point to RealVNC gt VNC Viewer T Startup gt H2 VNC Address Book fan VMware gt va VNC Server m Programs fe Documents gt Windows Live Internet Explorer 2 Ce Settings Q ar Outlook Express p2 Search gt 7 Help and Support wn S E kz z VNC Viewer Enterprise Edition for Windows See http www realvnc com for more information on VNC NB If you accepted the option during installation you can also start the VNC Viewer by clicking the VNC Viewer quick launch bar icon Making a VNC Viewer connection i In the Server text field enter the name of the server or IP address of the remote VNC Server PA Click the Connect button 3 If it is the first time you have made a connection to the server a secure signature will be displayed click Yes to accept the signature VNC Viewer Warning No signature has been stored for this VNC Server so its identity cannot be verified The server s signature is XX
16. commended C Always use best available colour quality Use these settings for all new connections a coe THIS GUIDE WILL ASSUME THAT YOU ARE WORKING IN ADVANCED MODE Os Copyright RealVNC Ltd 2008 All Rights Reserved Display options The Display tab on the VNC Viewer Properties dialog allows you to configure how the remote server should be displayed in the Viewer Display Option No scaling Scale to window size Custom scaling Preserve Aspect Ratio Full Screen Mode Enable Toolbar Adapt to Network Speed Best compression Best Quality Always use best available colour quality lt 10 Description Remote screen is displayed on the Viewer at without any stretching or squeezing Remote screen is scaled to fit the viewer s window size Remote screen is scaled to fit your pre chosen scaling size or to fit a given size The aspect ratio of the remote screen is maintained regardless of the viewer window size The remote server screen is maximised to fit the viewer screen and may be displayed with scroll bars The quick access toolbar is displayed at the top of the viewer window Let VNC Viewer automatically select a balance between the number of colours displayed and viewer responsiveness based on your connection speed Allows you to manually select a balance between the number of colours displayed and VNC Viewer responsiveness Forces VNC Viewer to use the maximum number of co
17. cting 6 Click Yes to continue Depending on the security settings of the remote VNC server the VNC Authentication dialog will be displayed VNC Authentication 128 bit 44 gt B PBR Username Password As Enter a valid username and password and then press Enter The viewer window will be displayed and you can interact with the remote VNC server in just the same was as if using a standard viewer connection Limitations of VNC Viewer for Java VNC Viewer for Java supports all the security features of VNC Enterprise Edition such as encryption and server and user authentication However it does not currently support scaling file transfer address book integration Press F8 for a menu of options Using the Listening Viewer In certain situations it can be useful to allow a remote VNC server to initiate the connection to your VNC Viewer rather than the converse Such instances could include e In a demonstration situation classroom or seminar where more than one viewer system will simultaneously connect to a single server system e Where the firewall protecting the local network of the remote system will not allow incoming connections to be made To allow this to occur your VNC Viewer must be started in a special mode that leaves it dormant within the Windows task tray until an incoming connection is received from a remote VNC Server system You can start and use VNC Viewer in the usual manner alongside the special
18. ername and password for this server into the appropriate fields and then confirm your password 18 Copyright RealVNC Ltd 2008 All Rights Reserved 5 If you would like your password to be encrypted click the Encrypt password checkbox You will then be prompted to enter a master password Enter Master Password Enter a Master Password for your VNC Address Book entries This is used to protect the VNC Server password stored in each entry against unauthorised access Password Confirm A master password will be used to encrypt your VNC Address Book entries You will be prompted to create the master password when you first create an encrypted entry In the future when connecting to encrypted entries you will only have to enter the master password and not have to remember all of the individual authentication details 6 Click OK f Your entry will now be listed in the VNC Address Book list TE VNC Address Book File Edit View Tools TK XK amp Alphabetic Hierarchical E i V2 example_server Details Server example_server Encryption Server Username user Options Shared lentry Master Password Required 8 To connect to this server simply double click on the server s name in this case example server To edit a VNC Viewer Address book entry 1 On the VNC Address Book toolbar click Properties Al This will display the VNC Viewer Properties dialog
19. essteosstesstessstessseessresstessseet 18 To add an entry to the address DOK sesessssesssessesssscsscscsessssesessesesecsesessesessesssessesessesecessesecsesesseeeeseseeeeseetseeses 18 To edit a VNC Viewer Address book entry cceecssssssssesssssscsssessssssessessssssssessessssseessscsssesseesseeseessesseeeseeseeesseeess 19 To change VNC Address Book settings cccssssssesssssssssssessssesessssesessesssessesessesessesssesseseseesesessesessesesseeeseeseeeeseeneaeaee 20 NING VWI FOTO ee a E tn astbeneantstiaseotasansonesu 21 Making a VNC Viewer connection USING a WED browser uu cccecesessesessessssesessesescsesessesesssseseensseeessesecneseesssesseseensseeseeeans 23 Limitations Of VNC Viewer for JaVa wc ecsessssssessssessesssssssssssesesesssessessssesssessesssscsecessessssescessesecsesesesecseseeeeseseeseaeenees 24 Using the Listening WIG WS Yasser abet ose scczescs syessceeunercsutseantirencnaradusauese a aaa aaia aaa aa asasi aa Aaaa 24 To start the VNC Viewer in listening MOE ecessssessssssessssesecsssessssesessesessesesesesesseseensseeesseseasesesueseensseensseseeneaeeees 25 T stop listening viewer MOdEsssssseiisrernean neii eieae aaeei E aA Eiaa aea ap iE iA aii 25 Technical MED FS asses cxessove cz esneecesesnceayessdenssenva seven Nare EAEEREN E ANENE SENEESE EEEE EREE ENES NANETA ANEN E ORNOS EEES 26 AcknowledgementsS ss ssseessseeeseeesssessstesssessstensstesstessstossssosstossseosstesstessstossseesstesstensstesstessstesstensstes
20. is is a best From the remote VAC viewer Admin Local This is a response From the local server VNC Chat options By default the VNC Chat application is set to save all chat messages for 90 days To change these options L On the Tools menu select Options This displays the Options dialog Options Chat history Log chat history Log file C Documents and Sett Keep the last 90 z days w 2 If you don t want to keep a log of your chat history uncheck the Log chat history option 3 By default the Log file is stored in C Documents and Settings username Application Data RealVNC To change this click the Browse button and navigate to the folder where you would like to store the log file 4 By default the last 90 days of chat messages will be logged However instead of storing by a number of days you can choose to store by number of messages to change this On the Keep the last box enter the number of days or messages that you would like to keep On the days drop down box choose between days or messages 16 Copyright RealVNC Ltd 2008 All Rights Reserved Copying messages from chats You can copy Chat messages to any text based application To do this e Simply select the messages that you want copy then press Ctrl C and then paste into your chosen text based application such as Microsoft Word WordPad or Notepad 17 Copyright RealVNC Ltd 2008 All Rights Reserved The VNC Address Book
21. listening version NB If the local viewer system is situated behind a firewall i e the remote server system is external to the viewer s local network then the firewall needs to allow incoming connections at port 5500 24 Copyright RealVNC Ltd 2008 All Rights Reserved To start the VNC Viewer in listening mode 8 Click the Windows Start button then point to Programs or All Programs then point to RealVNC Advanced gt VNC Viewer Listening Mode A VNC Viewer icon will be added to the Windows task tray area in the lower right corner of the screen Tam 2B 1229 oe a 0 ey Thursday 01 05 2008 The listening viewer will remain in this dormant state until a remote system initiates a connection see opposite To stop listening viewer mode L Right click the listening viewer icon in the windows task tray and on the context menu select Close New Connection Default Options About cose i 95 lt Copyright RealVNC Ltd 2008 All Rights Reserved REAL Technical Support If you have a problem please refer to our online FAQ page on the RealVNC website If you still cannot find a solution then please don t hesitate to contact us for further assistance using the product support request page Support request This section allows you to send queries directly to a VNC support representative www realvnc com support html Please include as much information as possible about the pr
22. lours even on a slow connection For example to view photographs Copyright RealVNC Ltd 2008 All Rights Reserved Input options The nputs tab on the VNC Viewer Properties dialog allows you to configure which events keyboard mouse etc are transmitted to the server WW VNC Viewer Properties Input Options Enable or disable file transfer or mouse or keyboard interaction with the remote server Display Inputs Connection Expert Inputs Enabled v Enable keyboard input Pass special keys directly to server Enable mouse input _ Enable 3 button mouse emulation _ Rate imit mouse move events Share dipboard with server Enable file transfer Menu key F8 C use these settings for all new connections Ca J Coe e To allow all inputs keyboard pointer clipboard file sharing on the Inputs drop down list select Enabled e To disable all inputs so that the viewer runs in View Only mode useful for demonstrations to multiple viewers on the Inputs drop down list select Disabled e To choose a custom level on the Inputs drop down list select Custom and then select the options you require by clicking the appropriate check box Input Option Description Enable keyboard input Keyboard events are passed to the server Special keys are passed directly to the server rather than being interpreted by the viewer machine VNC Special keys are the following Windows key Pass speci
23. nection to the existing remote system will remain unaffected and both or more connections can coexist simultaneously Options Displays the VNC Viewer Options dialog so that you can make changes to aspects of the current connection Connection Info Displays numerous details about the current connection which are mainly of use in support and diagnostic situations 22 Copyright RealVNC Ltd 2008 All Rights Reserved Making a VNC Viewer connection using a web browser If you to need to access a remote VNC server using a computer that lacks a VNC Viewer for example in an Internet caf you can use any standard web browser to make a connection using a compact Java applet The browser will then operate in the same way as VNC Viewer 1 Launch your chosen web browser and enter the IP address or URL of the remote VNC server in the following way e Enter the IP address preceded by http and followed by a colon and then the port number used by the remote VNC server most commonly 5800 e g http 192 168 0 1 5800 e Enter the URL followed by a colon and then the port number used by the remote VNC server most commonly 5800 e g www exampleserver com 5800 Pa If this is the first connection you have made to the remote VNC server you browser may prompt ask you to confirm that you trust the Java applet If you answer No then the Java applet will still operate however some of its advanced features will be unavailable mo
24. oard Fetch Files from Server Fetches a file from the remote server to the local machine Files offered by the server are also placed on the clipboard and can be pasted This icon is green when files are available Connection Information Displays the settings for the current VNC connection including line speed etc Connection Encrypted Displays whether or not the VNC connection is encrypted Connection Speed Displays the connection speed of the current VNC connection and indicates when there is network activity Copyright RealVNC Ltd 2008 All Rights Reserved VNC Chat VNC Enterprise Edition 4 4 includes a simple chat application This enables the VNC Viewer user to communicate with the VNC Server user and vice versa To start a chat L Ensure that you are connected to a VNC Server and on the VNC Server window in the Windows task tray right click the VNC Server icon and select Chat Status Connect to Listening Viewer Disconnect Viewers Stop VNC Server Zi This displays the VNC Chat Messages dialog VNC Chat Messages File Tools Enter text here To enter a message simply type in the text field and then press the Enter key to send the message The example below shows a message sent from VNC Viewer user user to the VNC Server user Admin Local 15 Copyright RealVNC Ltd 2008 All Rights Reserved REAL VNC Chat Messages File Tools fan If Map TSI 200E user Th
25. oblem including the exact text of any error messages you see including the error number and what you re doing when you see them Please also include your customer number and registered email address and the version of VNC Server and VNC Viewer that you are using and operating system you are running at both ends of the connection Acknowledgements VNC Enterprise Edition contains software from more than one source For full details of this software and the terms under which it is distributed see the RealVNC website www realvnc com products enterprise 4 4 acknowledgements html 26 Copyright RealVNC Ltd 2008 All Rights Reserved Appendix Ports What is a port Not to be confused with a physical port such as a USB or printer port to which you connect devices a Port in this context could be more accurately described as a service contact point It provides an indication of where to locate an appropriate known service that can deal with the kind of data being transmitted Imagine the problem that exists for networking equipment A disparate mixture of messages and information are continually flowing from system to system via gateways and routers and each needs to find the correct destination In this process the IP address plays a critical role in making sure that the right items arrive at the right places however the unsung hero is definitely the port number While the IP address directs the postman to the correc
26. on the context menu point to Toolbars and then select Quick Launch NB The quick launch icon feature is not available in Windows 95 or NT4 Da Copyright RealVNC Ltd 2008 All Rights Reserved Configuration options On the VNC Viewer Connection Details dialog click Options This displays the VNC Viewer Properties dialog as shown below IA VNC Viewer Properties Basic Options REAL Configure the most common VNC Viewer options Click the Advanced button for more options e Basic Display C Scale to window size Full screen mode Enable toolbar Adapt to network speed recommended C Always use best available colour quality Connection iew only Pass special keys directly to server Menu key FS yv Use these settings For all new connections The first time that you start VNC Viewer the VNC Viewer Properties dialog will display in basic mode with the most frequently used configuration options In order to display all of the available configuration options click the Advanced button To switch back to basic mode click the Basic button at any time UA VNC Viewer Properties Display Options REAL Enable or disable scaling or full screen mode or change the colour depth used to render the remote desktop C Display Inputs Connection Expert Scaling no scaling O Scale to window size Custom scaling wo x C Full screen mode V Enable toolbar Adapt to network speed re
27. sestossttosstessteosseeosseess 26 ETELE o I EEEE IAEE AEN A AE NA E N E EAA AE E aus A ATE A AEE 2 7 FOU NI AAE AEA EA E N ES PEIEE AAO pen E I I EAA OE O OA E OEO O 27 PACO E 2 aara E eter tere E E E A A A EE A 28 Windows Version SUDDO secs sczdcicsacsseeckasstaets sevens wise nncisedeaaeczcstaanye ie aesacastaeainoeaccenaicareiedeeaves seaman es eee 29 2 Copyright RealVNC Ltd 2008 All Rights Reserved REAL Introduction to VNC Virtual Network Computing VNC is remote desktop access software which allows one computer the viewer to take full control of another the server whether on a local network or anywhere in the world over the internet The computers don t even have to share the same operating system for example you could use VNC to view and control a Windows Vista desktop at work using a Linux or Mac computer at home Applications of VNC include remote access home working remote maintenance helpdesks and business collaboration As shown in the diagram below VNC consists of a server and a viewer VNC Server VNC Viewer Software Software Internet es _ ee rrai i Secure Logon Data Encryption e The VNC Server is the software application on the computer to be remotely accessed e The VNC Viewer is the software application that watches and interacts with the VNC server on the remote computer This guide provides information on the installation configuration and use of VNC Viewer For detailed
28. st notably e You will only be able to connect to the VNC Server that supplied the Java applet e You will not be able to store the identity of the server to which you are connecting and so will need to reconfirm its signature during any subsequent connections and e You will need to use the F8 menu in order to use the Windows clipboard to transfer information between the local and remote systems e The remote VNC server will download the Java applet and the Connection Details dialog will be displayed VNC Viewer for Java Mozilla Firefox File Edit View History Bookmarks Tools Help W O Gh G htt 192 168 0 157 5800 REAL N YNC Viewer Connection Details ie Sel Server 192 168 0 157 0 C Encryption Let Server Choose Default vi About Options OK Cancel YNC Viewer Enterprise Edition E4 3 Copyright C 2002 2007 Real NC Ltd See http www realvnc com for information on NC 4 Click the OK button to connect or optionally e Change the Server address to view a different remote system e Change the connection options e Change the encryption settings S Depending on the configuration of the remote system the browser may display a confirmation or a warning dialog sJ a Copyright RealVNC Ltd 2008 All Rights Reserved gaset No signature has been stored for this VNC Server so its identity cannot be verified The host s signature is 9c 15 5f 20 b3 dd 43 45 Do you want to continue conne
29. t building it is the port number that gets the package through the door of the correct apartment Without the port number there would be piles of unclaimed packages filling the foyer Every application that sends or receives information across a network uses a port number In many cases they are fixed numbers that are always used by particular applications and because they are not often changed they are not normally mentioned For instance if you send an email via the most common method then your message will be marked with port number 25 Whenever you browse the Web the information will always be denoted with port number 80 and VNC applications almost always send and receive using port number 5900 The systems at the receiving end then know to route messages marked as port 25 to the email server port 80 to the web server port 5900 to the VNC server and so on You should not normally need to change the VNC port number within VNC Server however if you do then all viewers must specify the new port number when connecting to the the server system For instance if the port number was changed to 5950 then to reach a server at IP address 192 168 0 2 the VNC Viewer user would need to enter note the double colons LO2 100 Uee st 0000 Port numbers can range from 0 to 65 535 and are generally divided into three ranges e 0 to 1023 are well known ports e 1024 to 49151 are registered ports e 49152 to 65535 are dynamic and or private ports
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