When is the paid version released

VNC 1.0 in paid mode was released 22 July 2008. Use the link at the left, and visit App Store

VNC v 2.0 has been released 7 December 2008

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Difference between Lite and Paid version

Compared to the Lite version the full version has:
- Another cool key board
- Support for right mouse button
- Macro support
- Ctrl+alt+del key. Needed if using Win 200x as a VNC Server

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Cannot find ctrl + alt + del

VNC Lite has no support for special keys. In the paid version, use second keyboard icon from the left , key ">>" and a new keyboard with ctrl+alt+del is displayed. Run the VNC Server as an application, as to see if Mocha VNC can be useful.

There is a bug in v 1.0. ctrl+alt+del key works only in portrait mode. Will be fixed in v 1.1

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Is there a limit to the server screen size

V 1.1 has been tested with screen size 3200x3200. Such a size or larger is not recommended, as to the size of data needed to be send to the Client. One single screen 3200x3200 is 30 M byte, if send uncompressed!

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Is SSH-2 Tunnel supported

Not in the current release. There is an issue with exporting 128 encryption from the USA, where the App Store server is located. 128 bits is seen as a dangerous weapon.

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How to use dynamic IP address

If your VNC server does not have a fixed IP address or name, a solution could be a dynamic DNS name from a service as NO-IP The basic version of the service is free.

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How to connect to your PC/Mac from the Internet

To allow a connection with the iPhone on the EDGE network or another wifi network, maybe at your local Cafe, you must configure the router/firewall protecting your Home network to allow traffic on port 5900. This could be a security risk! Read the router manual for advice.

An example:

I have a router at my house, which connect to the Internet. It has IP address 88.1.2.44 on the Internet. The router has a fixed IP address on the Internet.

If your internet provider (ISP) offers a  dynamic address, a solution could be to use a service as NO-IP

Click here to see your current router IP address.

My Mac OS X Workstation has a fixed IP address on the local network (wifi) at 192.168.2.2

In the router firewall configuration I have configured, if it receives data on port 5900, forward it to 192.168.2.2.

When on the EDGE network with the iPhone, I will in mocha vnc as VNC server IP write

• 88.1.2.44 , and as port 5900 (Not the IP address for the Mac!)

With canyouseeme.org it is possible to check if the router has been configured to allow port 5900 access. At field What port type 5900, and click [Check]. In the center of the page the result is shown (below some google ads)

If you open the router for port 5900 access, make sure to use a proper password in the Mac screen sharing , or your system will be at high risk.

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Is UltraVNC MS Logon supported

No. At the moment we have no plans to support this option. It is not easy to configure on the Windows PC, and will be a source for a lot of support

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Can a RealVNC Enterprise server (in paid mode) be used

• VNC Password
• Encryption: Prefer off

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Are multi screens server supported

2 monitors will in VNC be seen as one large screen. There is no support for only displaying a single monitor. Notice the VNC Server, tightvnc has support in the server to select only a part of the screen to be used for VNC.

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Do you support the Vine Server

No, and at the moment we have no such plans. Use the Server already included with the Mac OS X

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How to remove Mocha VNC from the iPhone

In the iPhone home screen, hold down the VNC icon, until all icons start shaking. Now tap the program to delete, and you will be asked to confirm the removing

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It keeps reporting negotiation

• Wrong password, or a VNC Server type/version which is not supported
• Some VNC Servers support other user/password validation. Make sure the VNC Server is configured for VNC Password
• If the iPhone is not using wifi, but only the EDGE network, the IP address for the VNC Server given in Mocha VNC must be your Home router IP address. The router must also be configured to forward port 5900 traffic to your Mac/PC. To open port 5900 could be a security risk. Check the router manual for advice.

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Cannot make a connection to the Server

As a start make sure you have installed a VNC Server on your PC,  or if using Mac OS X, has enabled the VNC Service.

Either

• Wrong IP address for the VNC Server. The IP address shown in the Mac OS X Remote Management may be a name only known to the DNS for the Mac, not the iphone. In Mac:System Preferences - Network, the IP address for the Mac can also be located.
• The VNC Server has not been started
• A firewall stopping access on port 5900. A firewall may run on the PC/Mac
  
• Have installed PeerGuardian on the Mac/PC, and configured it to block some IP addresses.
• The iPhone/iPod is not on the same network as the VNC Server. If using wifi, check wifi is enabled on the iPhone and not only the EDGE network. Also it is the same wifi network as your PC/Mac , and not your neighbors network.
• If the iPhone is not using wifi, but only the EDGE network, the IP address for the VNC Server given in Mocha VNC must be your Home router IP address. The router must also be configured to forward port 5900 traffic to your Mac/PC. To open port 5900 could be a security risk. Check the router manual for advice.

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Where to find VNC Servers for Windows/Linux

There are many different types of VNC Servers. A good choice could be RealVNC . They have a freeware and a paid version. The paid version is needed if using Vista.

Other servers:

• TightVNC
• TridiaVNC
• UltraVNC

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How to find the IP address on a Windows PC

- In Windows Click on the start menu button and then on run
- Type "cmd" (without quotes) and hit enter
- A black DOS box is shown with a prompt
- Type ipconfig and hit enter

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I can see the desktop in Mocha VNC, but mouse and keyboard does not work

The vnc server in read only mode. (view mode, it is also called). Must be solved in the VNC Server configuration, not in mocha vnc.

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Screen does not refresh

If the screen is large, and/or the network slow, it can take some time to refresh. Mocha VNC has in menu (+) icon, a refresh option, but it should not be needed for normal use. Using Refresh will just make it more slowly, as it requests the full Server screen to be send again.
Some VNC Servers can have problems with refresh. If problems is seen with a VNC Server and it is not a beta version, please write a mail to our support function. Include full VNC server name, version and OS type.

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RealVNC 4.4.2 hangs in negotiation

Make sure it is configured for

• Authentication: VNC Password
• Encryption: Prefer on
• The Password select in [Configure] is the same as in Mocha VNC

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Keys as / @ : ; does not work

Mocha VNC send key codes as a US Keyboard. The Mac/PC must be configured to use a US Keyboard.

If using a VineServer on Mac, the shift keys will not work. We do not support the VineServer, only the VNC Server which is part of Mac OS X.

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Right click on Mac OS X Tiger does not work

If using the older Mac OS X Tiger (14.4.x) , there is no support for mouse right click with Mocha VNC.

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How to use different displays in VNC for Linux

In X11 type VNC Servers used on Linux/UNIX systems it is possible to use displays.

port = display + 5900

The port number can be configured in mocha vnc , connect window.

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Host has closed the session

If this message is shown, at the negotiation, it could be

- A firewall on the PC/Mac stopping port 5900 access
- Wrong VNC Password. Check if it is the same on the Server and Mocha VNC
- If using a Mac, (x) all users must be selected. See How to configure VNC on Mac OS X
- If using a Mac, the 32 bit color option must be enabled (connect dialog in Mocha VNC)
- If using UltrVNC, notice MS Logon supported is not supported in Mocha VNC

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How to get a faster display

- Configure the desktop with a smaller screen. A screen size around 1000x1000 gives a good result
- Use 8 bit color mode (connect window). Mac OS X Remote Management supports only 32 bit, and will fail in 8 bit mode
- Use wifi and not the phone network
- If using a Windows or Linux PC, try different VNC Servers. RealVNC in paid mode could be a good choice

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How to delete a VNC Server from the host list in Mocha VNC

- Start Mocha VNC, and the yellow button is displayed
- Select Menu - Edit Connections
- Select the configuration to delete
- Tap the VNC Server IP address field, and the QWERTY keyboard is shown
- Use the Delete key to remove the IP address. It should now display "enter text"
- Press Done in the QWERTY keyboard. This is important!
- Press Host List
- The configuration has been removed from list

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Mouse move action and the blue hand

If the blue hand icon is shown on the screen, moving a finger on the screen, will scroll the local display.
If the blue hand is selected, moving a finger on the screen, is as left mouse key down and moving the mouse. Use this function to move files and icons on the desktop. Tap the now black hand to get back to the default scroll mode.

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How do I get a VNC Password

Depends on your Server type. If it is Mac OS X, see our Mac OS X page.
If it is a PC, you must first install a VNC Server on the PC. Try RealVNC for Windows and Linux

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VNC and Vista

We have only seen success with RealVNC Enterprise Edition. They offer a trial version.
UltraVnc can run, but keyboard and mouse events does not work. Check your VNC Server documentation to see if Vista is supported.

Click here for a screenshot with Mocha VNC in session with a Vista PC
Tip: In Realvnc Enterprise Edition select,

• VNC Password
• Encryption: Prefer off

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Managing your SunRay using your iPhone VPN and VNC

This is a guide from a customer. We cannot offer support on Sunray installations, but hopes these notes can be useful.

Items Required:

• iPhone firmware 2.0 or 2.0.1 installed on your iPhone
• Mocha VNC Lite or Paid version
• Your SunRay VNC file edited
• VPN Setup on your iphone for your corporate network

1. Install Mocha VNC on the iPhone
2. Edit your xstartup file in your .vnc directory on your SunRay to control your SunRay Desktop from your iPhone
   On your SunRay go to Launch>> Run Applications
   *
   * In the “Run Applications window type the following command
   * gedit /home/homedirectoryname/.vnc/xstartup
   * Example: gedit /home/jmathers/.vnc/xstartup (space after gedit)
   * Click on “Run”
   *
   * Within Text Editor,
   

   replace the
   

   twm&
   

   line with
   

   gnome-session&
   * Now do a File>> Save
   * Then do a File>>Quit
   * This (only needs to be done one time for setting up your Sunray for future VNC sessions) Your would reedit the xstartup file if you only wanted to VNC into a terminal window on your SunRay and put the ”twm&” command back in to the file.
   

3. Go to your SunRay and start a VNC Session
   * Login to your SunRay
   * Go to Launch>>Applications>>Utilities>>Terminal
   * Type in vnc start hit return
   * Enter a password of at least 6 characters hit return
   * (Verify) Re enter the password hit return
   * Your VNC Session will now start on your SunRay
   * Write down the information in the “xmessage in the upper left hand corner.
   * Example: Started on “stb1-usdk04-06:1”
   * Once you write that server string down, you can click on the “Okay” button
   * Now you must translate that to an actual IP Address for your iPhones VNC
   * Move the VNC session out of the way on the Sunray and start another terminal window. Go to Launch>>Applications>>Utilities>>Terminal
   * Type in nslookup hit return
   * Type in nameofyourserver hit return
   * (Example tb1-usdk04-06 hit return)
   

   Your IP address for the server with your SunRay VNC Session will come back and says example:
   * Results will look like Name: tb1-usdk04-06.network.com
   * Results will look like Address: 123.133.1.100 (Write this IP address down for your iPhone)
   

   * Quit the nslookup command by typing exit
   * Write down the IP Address, and the password your gave your VNC session
   

4. Go to your iPhone and login to VPN, connecting you your network
5. Once logged into VPN on your iPhone, click on the HOME button and click on the “VNC Lite” application button
   * Click on “Connect” to configure your iPhone VNC for your SunRay
   * VNC Server IP address = (The IP address you wrote down for your SunRay)
   * VNC Server Port =
   

   Look at your SunRay VNC Session and at the top of the window there is a bar and it will have VNC information, you have to translate this to the proper port and it is simple
   

   Example: VNC: tb1-usdk04-06:1 (jmathers)
   

   All your care about is the number after the colon (in this case :1 )
   

   Port Conversion formula ( port = display + 5900
   

   · Display 0 = 5900
   Display 1 = 5901
   Display 2 = 5902 and so on and on
   

   (My session had the number “1” after the colon, so my port is 5901)
   

   · VNC Password = (This is the password you wrote down from your SunRay VNC Session) You made the password when starting the SunRay VNC Session
   

   · Click on “Connect”
   

   · It should take a few seconds to display your SunRay desktop
   

   You now have full control of your SunRay from your iPhone
   

6. To exit your iPhone VNC session, Click on the “+” symbol and tap on “Disconnect”
7. To exit your VNC session on your SunRay. Go back to your SunRay and click on the “X” in the upper right hand corner of your VNC window. This will close your session.

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