12/15/2023 0 Comments Copy file from local to ssh![]() Then, you will be asked for your password. When connecting to the system for the first time, SSH will ask you to verify the ED25519 or RSA key fingerprint. Start MobaXTerm, go to Session => SSH and under remote host type fill in Here, we will assume that you use MobaXterm. If you want to redirect graphical output using Putty, you also need to check the option 'Enable X11 forwarding' under Windows => Category => Tunnels. Alternatively, you can use Putty (a very basic SSH client) in combination with a seperate FTP client like FileZilla and a seperate X server application like xming to redirect graphical output. The most convenient application is MobaXterm, as it also includes options for transferring files using an SFTP (SSH File Transfer Protocol) file browser and redirecting the graphical output from the HPC system to your local PC - we'll get to those options later. Windowsįirst, you need to install an SSH client. To aid in keeping the login nodes usable for all users there is an automatic cleanup active on the login nodes that will kill processes that take up too much CPU time and/or too much memory. The login nodes are not meant for running compute jobs, or even testing compute jobs! Such processes would hinder the other users of the login nodes. The login nodes are primarily meant for preparing and submitting jobs, checking on the status of your running jobs, and copying data to and from the HPC systems. A more extensive tutorial, can be found here. Note that some examples in the second tutorial (especially those about variables) are aimed at a different shell (csh) than the default shell used on Snellius (bash), meaning that commands are slightly different. If you have no experience with Unix or Linux, we suggest you read our Unix tutorial for HPC clusters. Finally, you will learn how to transfer data between your own PC and the HPC systems. ![]() Then, we explain how you can login to the systems without having to enter your password every time. In this section, you will learn how to connect to the HPC systems using SSH (Secure Shell Protocol), either via an SSH client (Windows) or via SSH in a terminal (MacOS and Linux). The main way to interact with these machines is therefore not through a graphical user interface, as is the case for Windows and MacOS operating systems, but through text-based commands entered in a terminal window. Snellius runs a Unix-based operating system, which is text based. ![]()
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