SC newbee

[pjo]

Hi! I am trying SC.

I did put port forwarding 5500 TCP in the viewer PC.

Launch the sc exe in other PC which is behind NAT router also.

Lauched vncviewer -listen

Viewer GUI shows demo2.echovnc.com as VNC server.

How can I change it to the other PC IP ?

pjo

[poutnik]

hi,

If you mean changing server, just launch SC on other PC.

If you mean changing listening viewer PC, you need to create extra SC,
or SC with items for all PCs where would you like to launch listening viewer.

If you mean connecting to other server from already running viewer
( in normal mode ), tray icon of viewer has option a new connection.

[pjo]

hi,

If you mean changing server, just launch SC on other PC.

If you mean changing listening viewer PC, you need to create extra SC,
or SC with items for all PCs where would you like to launch listening viewer.

If you mean connecting to other server from already running viewer
( in normal mode ), tray icon of viewer has option a new connection.

Thanks poutnik

I wanted to view the PC-A and Pc-A has SC created with Viewr PC IP.
1. Launch SC in the PC-A.
2. Launch Viewer -listen in viewer PC.

Nothing happened.

What operation should be done in the viewer PC ?

[pjo]

Bump.

[redge]

What software are your really using ?
you wrote about SC and echovnc

if echovnc,
you need ask help to their support website, not here.
instantvnc is the replacement of SC working with echovnc


if SC,
don't use echovnc.com unrelated.
use the classic vncviewer of ultravnc

[pjo]

I am testing SC, not EchoVNC right now. EchoVNC is working fine.
I want to make SC work.
When UltraVNC viewer is running -listen, when the SC is run at the server, nothing happens.

How can I make SC work ?

[poutnik]

Simple verification if listener is viewable from SC machine:

run cmd.exe command at machine where SC is supposed to run

at console window write this command :

telnet "IP/DNSname of listening viewer, or router to be said forwarding that port" 5500
( or whatever else port it uses, 5500 is default )

what you get ?
( it is simple test of basic TCP connectivity, needed tu create VNC connection )

if it is displaying "Connecting To blablasbla..."
and then
"Could not open a connection to host on port nnnn : Connect failed"
then viewer is not visible for SC.
if screen is cleared, TCP connection was managed....

you can then close the window

[pjo]

Thanks.

I double checked if the viewer side port forwarding is correctly done by consulting with the NAT router manufacturer and 5500 is opened.

The SC side ports are not port forwarded.

telnet to the Viewer PC ip:5500 no connecction.

ping to ViewPC is ok.

Viewer PC is running -listen. (UltraVNC Viewer)

SC side PC is also behind NAT router.

What shall I check next ?

[pjo]

BUMP

[poutnik]

And telnetting router ?

telnet routerIP 5500

success can look like some chars typed there by system, or blanked screen
failure would look like blabla connection failed....

If there is firewall on viewer PC, try to manage incoming connection logging on 5500.

[pjo]

And telnetting router ?

telnet routerIP 5500

success can look like some chars typed there by system, or blanked screen
failure would look like blabla connection failed....

If there is firewall on viewer PC, try to manage incoming connection logging on 5500.

I am running Vista and cmd does not like telnet.
Telnet is not recognized as command or a program.

[poutnik]

How should I know it ? I have just looked at the whole thread, but you did not mentioned it. There should be maximum of available info in original post.

Personally, I do not fortunately have experiencies with Vista.
The only exception, that made me almost crazy was usage R23 based SingleCLick on Vista on PC of my friend, behind DSL modem/router.
My IP is public, and it works but some connection instability issues.

It is public knowledge Vista brings huge list of incompatibility problems,
going far behing UltraVNC scope. So next time note Vista usage in the start.

[pjo]

I did not realize that UltraVNC and SC is not supported in Vista.

But normal UltraVNC works here plus EchoVNC.

[poutnik]

try manage launching on viewer PC other app,
listening on 5500 port instead, e.g. Abyss X1 aprellium web server,
or whatever else.

on SC PC, try browser( or app able to coounicate ) to view its web page on that port....

Or, you can use free Putty telnet/ssh related application,
it is able to manage telnet connection...

if it works, the problem is on UVNC/SC solution.
If it does not, the problem is in your connection....

[poutnik]

It is supported, AFAIK, but some children desease in general.
Older apps have to get used to a new OS, and vice versa.

[pjo]

Telnet was enabled in Vista.

telnet 192.168.1.1:5500

Cannot connect to host Port Number:23 : connection failed.

[pjo]

try manage launching on viewer PC other app,
listening on 5500 port instead, e.g. Abyss X1 aprellium web server,
or whatever else.

on SC PC, try browser( or app able to coounicate ) to view its web page on that port....

Or, you can use free Putty telnet/ssh related application,
it is able to manage telnet connection...

if it works, the problem is on UVNC/SC solution.
If it does not, the problem is in your connection....

From SC, the web page of the router 192.168.1.1 can be viewed. This is XP.

I will try Abyss on Viewer PC (Vista).

[poutnik]

telnet IP port

i.e. space, not colon...

[pjo]

telnet IP port

i.e. space, not colon...

From Vista,

telnet 192.168.1.1 5500

did not work

Cannot connect to host port number 5500

[poutnik]

I silently suppose a firewall on Vista machine allows incoming TCP connection
on port 5500.

[poutnik]

is 192.168.1.1 IP of router or I got confused ?
you should try telnetingt from SC machine to Viewer machine.

[pjo]

I silently suppose a firewall on Vista machine allows incoming TCP connection
on port 5500.

Vista firewall and Kaspersky Internet Security 7 were disabled and telnet 192.168.1.1 5500
no connection

[pjo]

is 192.168.1.1 IP of router or I got confused ?
you should try telnetingt from SC machine to Viewer machine.

yes 192.168.1.1 is the NAT router.

I will try telnet from SC PC to Viewer PC.

[pjo]

Telnet From SC PC to Viewer PC
no connection

at this time UltraVNC was not running.

[poutnik]

well, there must be something listening on port 5500,
othervise connection cannot be established, it is obvious...
either viewer, or anything else.....

[poutnik]

But as far as I think,
if you are even unable to telnet router on 5500,
it it something strange....

Did you try telneting router external, public IP ?
because you have mentioned telnetting 192.168.1.1 before,
what is private LAN IP...

[pjo]

I double checked the maker of the router that the Viewer PC is receiving TCP 5500 port.

[pjo]

But as far as I think,
if you are even unable to telnet router on 5500,
it it something strange....

Did you try telneting router external, public IP ?
because you have mentioned telnetting 192.168.1.1 before,
what is private LAN IP...

I will telnet public IP.

[pjo]

Telnet to Public IP from Viewer PC did not work.

The router setting is to route 5500 to the privae IP Viewer PC.

[poutnik]

If it is set correctly, it should work.....
e.g. I am able to manage at home

SConPC -> PublicIPofHomeRouter(port forwarded) -> ViewerOnSame PC

but essential is, what is result of telnetting from SC PC....