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When users are off-site or have slow internet connections, displaying graphics can be cumbersome. PCDS has explored two solutions for this problem:
This page is about the usage of NoMachine for providing NX technology to users involved in LCLS experiments or operations.
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Note: MAC Clients must install XCode and XQuartz.You can download XQuartz from https://www.xquartz.org.
You can download the latest version of the enterprise client from https://www.nomachine.com/download-enterprise#NoMachine-Enterprise-Client. Ubuntu/Mint users should download the Debian version of the NoMachine client.
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Please contact pcds-it-l@slac.stanford.edu if you need more information or additional assistance with NoMachine.
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MacOs users may wish to have middle mouse button functionality enabled in their NoMachine sessions.
Here are the required settings within the XQuartz Preferences section (access via XQuartz→Preferences):
One of the common uses of this feature is to display the EPICS process variable (PV) names associated with widgets on EDM-based operator screens. Once these preferences are set then Option-Click displays the PV name upon release of the click (it is not displayed when still depressed) - and puts it into the cut-and-paste buffer.
Avoid sourcing the psconda environment when accessing the NoMachine servers. To add the conda environment to your bashrc file, you can do profile edit $HOME/.bashrc with the following content:
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alias psconda='source /reg/g/psdm/etc/psconda.sh' |
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export MN=$(uname -n) if [[ "$MN" =~ ^psana ]]; then source /reg/g/psdm/etc/psconda.sh fi |
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ps -f -u $USERNAME |
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