unable to get login screen using java viewer

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unable to get login screen using java viewer

Postby fawaz » 2007-12-24 16:22

when i open my server ip the java applet loads and displays my computer name on the window but doenst give me the login screen but only the " disconnect,options,disconnect,record etc buttons.i am using UltraVNC 1.0.4 RC6. i can connect loopback on my server without any issues using IE and also firefox.i am using xp and trying to connect from my office to home.office has a secure network.any help would be appreciated.
Last edited by fawaz on 2007-12-24 16:26, edited 1 time in total.
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Re: unable to get login screen using java viewer

Postby redge » 2007-12-24 16:50

1.0.4 rc6 no problem to report, just right now tested. vnc password.
viewer: firefox 2.0.11 + sun java JRE 1.6.0_3
vnc server: xp professional
UltraVNC 1.0.9.6.1 (built 20110518)
OS Win: xp home + vista business + 7 home
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Re: unable to get login screen using java viewer

Postby fawaz » 2007-12-24 17:34

what could be the issue as i have setup the server with http port 80 and a vnc client port of 225. but in my firefox i get an error after getting the record and other bars "network error: could not reach to server 'my ip':225

thanks
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Re: unable to get login screen using java viewer

Postby fawaz » 2007-12-24 18:10

i think i have to enable the security features in the java control panel like the certificate import.any idea how to make this work
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Re: unable to get login screen using java viewer

Postby redge » 2007-12-24 19:58

Are you sure you had correctly setup the port forwarding
LAN and loopback there no impact, NAT ignored. so your test almost always successful.
WAN remote, NAT translation/firewall should be set properly.

port forward 80 TCP + 225 TCP is very important.
outgoing should be allowed for firewall especially port 225.

java release at office is it OK ?
allow download certificate is depend of the security of your internet settings (Internet explorer even you won't use internet explorer and policy of your enterprise)
maybe you have a proxy at your office ? if so, you need to be connected to your proxy then maybe you can access internet.
UltraVNC 1.0.9.6.1 (built 20110518)
OS Win: xp home + vista business + 7 home
only experienced user, not developer
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Re: unable to get login screen using java viewer

Postby fawaz » 2007-12-24 20:29

yes we have a proxy in office. i can browse to the internet without any problems.
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Re: unable to get login screen using java viewer

Postby redge » 2007-12-24 20:42

your proxy block incoming data from port 225
uvnc send back data to port 225

you need a ultravnc with single port for success. not 2 ports.
UltraVNC 1.0.9.6.1 (built 20110518)
OS Win: xp home + vista business + 7 home
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Re: unable to get login screen using java viewer

Postby fawaz » 2007-12-25 06:16

how do i make it a single port. i have main port to 81 and http port to 80.that means vnc should use port 80 to connect and receive and should not even use 81 right? as far as i can see is that port 80 is not blocked in office as internet browsing is possible , but if vnc uses a different port for receiving then theres would be connection problems.

thanks

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Re: unable to get login screen using java viewer

Postby redge » 2007-12-25 08:37

ultravnc 1.0 release had 1 port existing but later was forgiven.
hope 1.0.4 have back the 1 port available with the 2 ports.
UltraVNC 1.0.9.6.1 (built 20110518)
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Re: unable to get login screen using java viewer

Postby fawaz » 2007-12-25 08:56

thanks for the info. is it possible to get the 1.0 version or request and addition of this feature.

thanks
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Re: unable to get login screen using java viewer

Postby JDaus » 2008-01-04 23:46

I think the problem lies in the understanding of what is occuring when using java viewer. i will try to best describe it (i may be wrong)

[list=]UVNC Server is setup to use two ports 5900 (VNC) and 5800 (Java)
When a connection is made from a client to the Java Viewer (via a web-browser) on port 5800 the applet is downloaded to the client and run locally.
The Java-Viewer then makes a (VNC) connection to the server on port 5900[/list]

Thus TWO ports are used. In theory (never tried this) you may be able to use port 80 for Java, and 443 for VNC, thus getting through most firewalls (don't know about proxies)

hope this helps explain it for yourself and others
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Re: unable to get login screen using java viewer

Postby redge » 2008-01-06 19:14

with 1 port you can use one port for both (java and rfb)
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