Site Tools

Trace:
nx_lab

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
nx_lab [2018/09/26 13:42] – pgh5anx_lab [2025/01/09 13:32] (current) – external edit 127.0.0.1
Line 1: Line 1:
 +==== Nomachine Remote Desktops ====
 +
 +The Department provides graphical linux desktop sessions using an application called "Nomachine". This app runs on Windows, Mac, or Linux and allows you to access our Linux servers from laptops or desktops. You get a full Linux desktop environment, including terminal windows, browsers, virtual studio coding, and other applications.
 +
 +Your Nomachine sessions are persistent across connections. So if you setup applications, browser windows, terminal windows, etc., then disconnect from Nomachine, the next time you connect, you can select that previous session and all your apps, windows, etc. will still be there for you to use.
 +
 +For more information, see: www.nomachine.com
 +
 +=== Download ===
 +
 +Download the Nomachine application onto your laptop or workstation from [[https://www.nomachine.com/download|https://www.nomachine.com/download]]. Then run the downloaded Nomachine app and specify ''%%nx.cs.virginia.edu%%'' as the server to which to connect.
 +
 +Here are detailed instructions for using Nomachine in the CS Dept.: {{ :nx-setup_v3a.pdf |}}
 +
 +=== Usage ===
 +
 +When you log into a Nomachine session, it's just like you are logging in to any of our Linux servers.  You will find your home directory just like anywhere else.
 +
 +Most common linux software is already installed and available on these servers. Take a look at our [[software_modules|software modules page]] for more information.
 +
 +=== 1st time CS account user? ===
 +If you are a first time CS account user (you've never logged in before), it is best to reset your temporary password (as provided to you in an email from the Dept when your account was setup) on the //portal// cluster, THEN login via Nomachine. To do so, open a terminal window and type ''%%ssh <userid>@portal.cs.virginia.edu%%'' (for example, ''%%ssh abc1de@portal.cs.virginia.edu%%''). You will be asked for your current (temporary) password, then asked to enter your new password, which you will verify. Then start up the Nomachine app and login with your new password.
 +
 +=== Troubleshooting ===
 +
 +  * **Conda init NX session crash**
 +    * Due to an unknown bug with NoMachine client sessions, conda init blocks within ''%%/u/<computing ID>/.bashrc%%'' files will sometimes cause the session to crash unexpectedly or simply not start.
 +      - To fix this, simply omit the STDERR redirect '2>' to have '>' in the line ''%%__conda_setup="$('/sw/ubuntu/ebu082024/software/common/core/miniforge/24.7.1-py3.11/bin/conda' 'shell.bash' 'hook' 2> /dev/null)"%%''. The result should look like the following ''%%__conda_setup="$('/sw/ubuntu/ebu082024/software/common/core/miniforge/24.7.1-py3.11/bin/conda' 'shell.bash' 'hook' > /dev/null)"%%''
 +      - Alternatively, enclose the init block into an ''%%if statement%%'' with the following conditional <code>
 +if ! pgrep -x "nxnode.bin" > /dev/null; then
 +  __conda_setup=...
 +  ...
 +fi</code>