Simple question of making VNC accessible in web browser

Astan Chee stanc "at" al.com.au
Thu Nov 30 04:38:07 2006


Hi,
The "one-port" option that was suggested doesnt seem to work on port 80.
The following error occured when trying to view via internet explorer a 
VNC server (enterprise edition version 4.2.7 i think) with both java and 
main connection set to port 80:
rfb.Exception: reading version failed: not an RFB server
This ofcourse happens before the password prompt (but after the server 
selection) in the java applet.
Im not sure what is causing this. Any ideas or workarounds for this 
problem?
Despite this, putting both to port 8080 seems to work fine. Just 
wondering what is the deal with port 80.
Also I noticed something strange in that although the server is 4.2.7, 
the client in the java applet says it is vnc viewer 4.2.6 . not sure if 
this is the issue or not.
Thanks again for all your help.
Cheers
Stan

James Weatherall wrote:
> Hi there,
>
> VNC Enterprise Edition supports "One-Port" operation, allowing VNC Viewer
> for Java to be served via HTTP on the same port as VNC connections will use.
>
> Regards,
>
> Wez @ RealVNC Ltd.
>  
>
>   
>> -----Original Message-----
>> From: vnc-list-admin "at" realvnc.com 
>> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Astan Chee
>> Sent: 21 November 2006 05:41
>> To: vnc-list "at" realvnc.com; stewart "at" sibecker.co.uk
>> Subject: Re: Simple question of making VNC accessible in web browser
>>
>> Sorry to bring this up again but two things, firstly thank 
>> you very much 
>> for the information, it worked fine.
>> Secondly, I havent tested this yet but instead of forwarding 
>> port 5900 
>> to my pc, change the VNC (and the java) port 80 and only 
>> forward port 80 
>> from my router. Will this work? or cause conflict since both the java 
>> http port and the vnc port is 80.
>> Also no, im using VNC enterprise edition also security is not 
>> really an 
>> issue.
>> Thanks again for your help.
>> Cheers
>>
>> S. I. Becker wrote:
>>     
>>> To remove the need for ":xxxx" at the end, you need to have 
>>>       
>> the java 
>>     
>>> viewer being served on the standard http port, which is port 80.
>>>
>>> There are two basic ways of doing this
>>>
>>> Either:
>>>
>>> 1) Forward port 80 on your router to port 5800 on your computer,
>>>
>>> Or (e.g. if your router does not support changing the port, or you 
>>> want to omit :5800 while _inside_ your LAN).
>>>
>>> 2) Forward port 80 on your router to port 80 on your computer, and 
>>> change the VNC java port to 80.
>>>
>>> Port forwarding is needed because your ip address to the outside 
>>> world, is actually your IP address of your router.  It then 
>>>       
>> needs to 
>>     
>>> know what to do with connections on each port - whether to 
>>>       
>> ignore them 
>>     
>>> (probably the default).
>>>
>>> In either case, you will also need to forward port 5900 on 
>>>       
>> your router 
>>     
>>> to your PC.
>>>
>>> NOTE: IF YOU ARE USING REALVNC FREE EDITION, THE ABOVE IS 
>>>       
>> NOT SECURE. 
>>     
>>> IT IS HIGHLY RECOMMENDED TO TUNNEL VNC THROUGH SOME OTHER SECURE 
>>> CHANNEL, SUCH AS SSH OR VPN.  (The Personal and Enterprise editions 
>>> are more secure, or take a look at VeNCrypt - 
>>> http://sourceforge.net/projects/vencrypt/ ).
>>>
>>> You don't need Apache - Apache is for actual web-sites servers, not 
>>> other services that also use the http protocol.  Indeed if you have 
>>> Apache on your system and try to change the java port to 80, one or 
>>> other will fail, because you can only have one thing 
>>>       
>> listening to port 
>>     
>>> 80.  If you do have Apache (or any other web-server), you can 
>>> configure it to work in harmony with VNC, by setting up a 
>>>       
>> page in it 
>>     
>>> just like the one VNC serves, but from your e-mail I'm 
>>>       
>> assuming that 
>>     
>>> you don't have Apache, and so don't need to do this.
>>>
>>> HTH,
>>>
>>> Stewart
>>>
>>> Astan Chee wrote:
>>>       
>>>> I dont understand how port forwarding (due to my lack of 
>>>>         
>> knowledge in 
>>     
>>>> it) can solve it.
>>>> Even if i forward port 5900 and 5800 in my router does that mean i 
>>>> can access the vnc server simply by typing http://<ip address> 
>>>> instead of http://<ip address>:5800 ?
>>>> Sorry but im not all that familiar with port forwarding and had 
>>>> several accidents with it in the past.
>>>> Thanks for you for your help!
>>>> Cheers
>>>> Israel A. Martmnez Ibarra wrote:
>>>>         
>>>>> you don't need apache; the only thing to do is to forwar the port 
>>>>> 5900 and
>>>>> 5800 in your router/modem to see your vnc server from the 
>>>>>           
>> WAN side.
>>     
>>>>> for more help to do forwarding go to http://www.portforward.com
>>>>> cheers.
>>>>>
>>>>> ----- Original Message ----- From: "Astan Chee" <stanc "at" al.com.au>
>>>>> To: <vnc-list "at" realvnc.com>
>>>>> Sent: Tuesday, November 14, 2006 11:47 PM
>>>>> Subject: Simple question of making VNC accessible in web browser
>>>>>
>>>>>
>>>>>  
>>>>>           
>>>>>> Hi,
>>>>>> I have a winXP machnine running with a VNC server on it.
>>>>>> What Im trying to do is access said machine from the 
>>>>>>             
>> outside  world 
>>     
>>>>>> via
>>>>>> a web browser. I can do it fine if I type http://<ip 
>>>>>>             
>> address>:5800 in
>>     
>>>>>> the URL where <ip address> is the ip of my computer.
>>>>>> Now what Im trying to do is get access when I dont have 
>>>>>>             
>> access to port
>>     
>>>>>> 5800. This means that when I type http://<ip address> in 
>>>>>>             
>> the URL the
>>     
>>>>>> same should happen. I searched and read in a few places 
>>>>>>             
>> saying that I
>>     
>>>>>> needed apache installed on my machine and that I needed to change
>>>>>> settings in both VNC and apache. What Im asking is how do I do 
>>>>>> this? Are
>>>>>> there any tutorials that shows how I can do this?
>>>>>> Similar to IBM's BladeCenter management module (the 
>>>>>>             
>> remote control
>>     
>>>>>> section) for those who have used/seen it before.
>>>>>> Thanks
>>>>>> _______________________________________________
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>>>>>>             
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