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I can connect to my private work network using putty and following setting: hostname: , port:5022, SSH

Forwarded Ports: D8888

This opens an SSH socks proxy which allows me to access internal servers. I again use putty to connect to the internal ubuntu server using the above as SOCKS proxy.

Now I want to get the server GUI using VNC , but I am unable to connect with the above socks proxy. I tried forwarding the ports , but since I am newbie to this I may have done it incorrectly , So how can I run VNC from my windows machine to access the remote VNC server?

This article did not help me to connect using vncserver, rdp too is not working. The vnc session is on a different server accessible only from as a socks proxy.

Note: I am able to ssh the internal servers using the above configuration using the as socks proxy in PUTTY.

share|improve this question
What VNC client are you using? Is the VNC session on, or a different server? – jjlin Sep 26 '13 at 19:15
@jjlin on a different server accessible only from via a socks proxy. I followed the same client and steps as in the linked above article – suuser Sep 27 '13 at 3:02
up vote 2 down vote accepted

If you're using the RealVNC viewer, as shown in the article you cited, then you should be able to do the following:

  1. Use PuTTY to connect to and set the D8888 forwarding (which you said you've already been doing).
  2. Start RealVNC viewer and click the Options... button.
  3. Select the Connection tab.
  4. Click the Use these proxy settings radio button.
  5. Set Proxy type to SOCKS 5.
  6. Set Proxy address and port to localhost:8888.
  7. Now try connecting to the actual VNC server, e.g. Don't use localhost:1, as you should be going through the SOCKS proxy.
share|improve this answer

Most VNC clients don't support SOCKS proxies so can't use the dynamic port forwarding (the D in D8888). You can forward a local port to a specific machine+port instead but it will mean one such local port mapping per remote system you want to VNC to. (This is in the article you linked to - it shows such a mapping to the localhost at the other end of the SSH tunnel). You then VNC connect to the forward port on your local machine and SSH tunnels it for you to the specific remote address:port.

Forwarded Ports: L8889 x.x.x.x:5900 (x.x.x.x address of machine you want to VNC to)

Some VNC clients do support SOCKS proxies but it tends to the paid / pro version.

share|improve this answer
the above linked artile vncserver does support socks. But the problem is that ssh:// is the only accessible server which runsopenssh using which I need to connect to other internal servers inaccessible from outside. I am already able to do this , but the only thing is that it does not work with vnc – suuser Sep 27 '13 at 3:07
The client needs to support going through a SOCKS proxy. Simple port forwarding isn't a SOCKS proxy. – Brian Sep 27 '13 at 20:22

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