File transfer

File transfer using ssh-based file transfer protocols

Copying files to/from the cluster: scp

From any Posix-compliant system (Linux/MacOSX) terminal files and folder can be transferred to and from the cluster using an ssh-based file copying protocol called scp (secure copy). For instance, copying a folder containing several files from scomp1090/lx6 can be achieved like this:

Syntax of the scp command requires from-to order:

<source lang='bash'> scp <source> <destination> </source>

<source lang='bash'> scp -pr /home/WUR/[username]/folder_to_transfer [username]@login.anunna.wur.nl:/lustre/scratch/WUR/ABGC/ </source>

This example assumes a user that is part of the ABGC user group. See the Lustre Parallel File System layout page for further details. The -p flag will preserve the file metadata such as timestamps. The -r flag allows for recursive copying. Further options can be found in the man pages.

<source lang='bash'> man scp </source>

rsync

The rsync protocol, like the scp protocol, allow CLI-based copying of files. The rsync protocol, however, will only transfer those files between systems that have changed, i.e. it synchronises the files, hence the name. The rsync protocol is very well suited for making regular backups and file syncs between file systems. Like the scp command, syntax is in the from-to order. <source lang='bash'> rsync <source> <destination> </source> e.g.: <source lang='bash'> rsync -av /home/WUR/[username]/folder_to_transfer [username]@login.anunna.wur.nl:/lustre/scratch/WUR/ABGC/ </source> The -a flag will preserve file metadata and allows for recursive copying, amongst others. The -v flag provides verbose output. Further options can be found in the man pages. <source lang='bash'> man scp </source>

WinSCP

WinSCP is a free and open source (S)FTP client for Microsoft Windows. By providing the hostname (login.anunna.wur.nl), your username, and password, using SFTP protocol and port 22, you can login. After login files can be transferred between a local system (PC) and the cluster.

FileZilla

FileZilla is a free and open source graphical (S)FTP client. It is available for Linux, MacOSX, and Windows. By providing the address, username, password and server type (Unix, see Site Manager;Advanced), files can be transferred between a local system and the cluster. Furthermore, the graphical interface allows for easy browsing of files on Anunna. Detailed instruction can be found on the FileZilla Wiki.

Samba/CIFS based protocols

The Common Interface File System (CIFS) is commonly used in and between Windows systems for file sharing. It is only available to clients within WURnet.

There are two mount points that are available

1. your home folder ( \\cifs.anunna.wur.nl\[username] )
2. the Lustre mount ( \\cifs.anunna.wur.nl\lustre )

You can enter these in the location bar of File Explorer.

See also

• Log in to Anunna
• ssh without password

External links

• WinSCP homepage
• FileZilla homepage
• The Common Interface File System (CIFS) on Wikipedia