Thank you thats an excellent idea! Cheers
On Mon, Feb 1, 2021, 2:36 PM DRC <[email protected]> wrote: > I assume from your description that the login node can directly access > VNC servers running on the HPC nodes, so SSH is only required between > your client machine and the bastion machine and between the bastion > machine and the login node. I also assume that neither the login node > nor the bastion node has any services that listen on the TCP ports > normally reserved for VNC (5900-5999.) In that case, you can set up the > multi-level SSH tunnel manually. If you know that the VNC server is > running on host "hpc1" and listening on Display :1, for instance, then > you can do something like: > > client$ ssh -L5901:localhost:5901 bastion > bastion$ ssh -L5901:hpc1:5901 login_node > > The first command sets up an SSH connection between the client and the > bastion node and forwards traffic meant for Port 5901 on the client to > Port 5901 on the bastion node. The second command sets up another SSH > connection between the bastion node and the login node and forwards > traffic meant for Port 5901 on the bastion node to Port 5901 on hpc1. > > Then, in another window on the client, you can do: > > /opt/TurboVNC/bin/vncviewer localhost:1 > > The multi-level SSH tunnel has to be set up in this way because you > can't re-use the server end of an SSH tunnel outside of the SSH session. > > On 2/1/21 1:04 PM, Some body wrote: > > > > Hi there, > > > > I have an issue where my turbovnc client and server are separated by a > > bastion and a login node and haven't figured out a way to use the > > command line's -via flag multiple times. For ssh my connection steps > > look like this, > > ssh (local laptop)-> bastion -> login node -> hpc node. > > > > The only way I've made this work with turbo vnc is to be on the hpc vpn, > > and then the command > > > > /opt/TurboVNC/bin/vncviewer hpc.node.ip > > > > works fine. The downside is that I can no longer use the internet of my > > laptop for anything else while on the hpc vpn. > > > > With the virtualgl client there's a multiple "hop" method > > https://github.com/VirtualGL/virtualgl/issues/115 but I haven't managed > > to make this work using turbovnc. > > > > Any assistance is greatly appreciated! > > -- > You received this message because you are subscribed to a topic in the > Google Groups "TurboVNC User Discussion/Support" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/turbovnc-users/9XF80-k84l4/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/turbovnc-users/73f85892-e1fb-714b-8638-d257385b1d00%40virtualgl.org > . > -- You received this message because you are subscribed to the Google Groups "TurboVNC User Discussion/Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/turbovnc-users/CAN-jySure%3D3JSM%2BnhXs423oqA6zM8p6z8xgHxdPQoWnDthDjMA%40mail.gmail.com.
