Sds-hd SFTP

It is possible to access the SDS@hd service from Windows, Mac and Linux using the sshfs/sftp protocol.

This enables easy access to SDS@hd without additional registration of your own computer. This way can also be useful if you are in a network in which e.g. SMB and NFS are not available, e.g. due to firewall restrictions.

Attention: In principle, however, the connection is not suitable for permanent connections, since (due to technical reasons) it is not highly available.

1 Prerequisites

Attention: To access data served by SDS@hd via CIFS, You need a Service Password. See details Sds-hd_user_access.

Additionally the access to SDS@hd is currently only available inside the belwue-Network.

This means you have to use the VPN Service of your HomeOrganization, if you want to access SDS@hd from outside the bwHPC-Clusters (e.g. via edoroam or from your personal Laptop)

2 Using SFTP from Linux client

2.1 direct/interactive Access:

You can directly use sftp to "login" to SDS@hd. This will give you an interactive sftp-shell.

Example:

> sftp  hd_xy123@lsdf02-sshfs.urz.uni-heidelberg.de
Connected to lsdf02-sshfs.urz.uni-heidelberg.de.
sftp> ls
sd16j007  sd17c010  sd17d005  
sftp> 
sftp> help
...
sftp> put myfile
sftp> get myfile

2.2 mounting network drive over SFTP:

In most linux distributions you could install a package for fuse mounting a network drive. This allows you to work with SDS@hd comparable to a local folder.

2.2.1 Example (debian/ubuntu):

• install sshfs package

> apt-get install sshfs

• create a local mountpoint

 > mkdir ~/sds-hd 

• mounting SDS@hd on command line

> sshfs -o reconnect hd_xy123@lsdf02-sshfs.urz.uni-heidelberg.de: ~/sds-hd 

• accessing SDS@hd

> ls ~/sds-hd
sd16j007  sd17c010  sd17d005  
> touch ~/sds-hd/sd16j007/testfile

2.2.2 Example (CentOS/RedHat):

yum install fuse-sshfs
> mkdir ~/sds-hd
> sshfs -o reconnect hd_xy123@lsdf02-sshfs.urz.uni-heidelberg.de: ~/sds-hd
> ls ~/sds-hd
sd16j007  sd17c010  sd17d005
> touch ~/sds-hd/sd16j007/testfile

You can close/unmount the network drive with the command:

fusermount -u ~/sds-hd

You can of course also use /etc/fstab for mounting SDS@hd with the following entry:

sshfs#hd_xy123@lsdf02-sshfs.urz.uni-heidelberg.de:    <your_local_mountpoint>   fuse   defaults,user,noauto,exec,reconnect        0       0 

3 Using SFTP from Windows and Mac client

Windows clients do not have a SCP/SFTP client installed by default, so it needs to be installed before this protocol can be used.

Tools for example:

• OpenSSH
• Putty suite (for Windows and Unix)
• WinSCP (for Windows)
• FileZilla (for Windows, Mac and Linux)
• Cygwin (for Windows)

network drive over SFTP:

• WebDrive (for Windows, Mac, iOS, Android)
• SFTPNetDrive (for Windows)
• NetDrive (for Windows)
• ExpanDrive (for Windows and Mac)
• MountainDuck (for Windows and Mac)

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