Howto

You might have received an email that your personal or group network disk is almost full. This articles describes some tools to identify large files/directories and cleanup disk space. Finding large files / directories with WinDirStat (graphical, Windows) WinDirStat is a disk cleanup tool for Windows that provides a visual representation of disk space usage. It helps you to quickly identify and understand which files and folders are consuming the most space. The program offers detailed information about each file, including type, last modified date, and file path. In addition to visualization, WinDirStat includes built-in cleanup options, enabling you to directly delete or move files within the program. ...

Your personal quota only determine the amount of disk space your own data may occupy and the number of files and folders you may have on your Windows U:\ disk or Linux home directory. Quotas may be active on other disks as well, however not all disks have quotas. The mail servers also use quotas to limit the disk space of each user’s mailbox. Windows On Windows desktops where the home directory is available as U: or H: disk right click on the disk, then choose Properties to view the amounts of used and available personal disk space in kbytes. ...

On C&CZ managed Ubuntu hosts, the “module” command is available. This makes it easy to use specific versions of available software. To view which modules are available, use: module avail and to use Matlab-R2023a: module add Matlab-R2023a` For more info, see the Environment Modules website.

Network shares with ZFS as file system have the ability (which C&CZ switches on by default) to make snapshots. A snapshot is a read-only copy of the share, made at a specific point in time. Such snapshots allow you to find previous versions of your files. On most shares, snapshots go back 45 days. After that period they are removed. Tip ...

C&CZ helpdesk can assist you by taking over your screen using TeamViewer. In case you are requested to download TeamViewer, use the following link: https://get.teamviewer.com/ischelpdesk

What path to mount? The storage page describes the paths for your home directory and network shares. Once you know what network share to mount, follow the steps for your operating system below. Info ...

Also see the working from home page provided by the central IT Service Centre. Email User webmail or your local e-mail client. Library How to get access to the University Library (when you are off-campus). BASS BASS can only be accessed directly from the campus network or through VPN from any Internet location. Note however that from a small part of the subnets at the Faculty of Science, direct access to BASS is not possible. These subnets are the ones with servers that can be accessed from the Internet. ...

SSH Secure Shell SSH is used to get a secure terminal-connection to a login server. All Linux loginservers can be reached with SSH client software. NB: as of December 2022, not all science logins are allowed to login on the login servers anymore. Should you have trouble logging in on our loginservers, please contact postmaster. Recommended SSH client software Windows: MobaXterm. From the MobaXterm website: “MobaXterm is an enhanced terminal for Windows with an X11 server, a tabbed SSH client and several other network tools for remote computing (VNC, RDP, telnet, rlogin). MobaXterm brings all the essential Unix commands to Windows desktop, in a single portable exe file which works out of the box.” The support of OpenGL could also be a reason to start using MobaXterm. If you use it professionally, you should consider subscribing to MobaXterm Professional Edition. MobaXterm is available on the S-disc. Mosh (mobile Shell) when roaming and intermittent connections. PuTTY. The OpenSSH client provided by Cygwin. Linux: Your computer should have ssh installed by default. Otherwise, install the openssh-client package. Install Mosh (mobile Shell) when roaming or having intermittent connections. OS X: the ssh client should be available on your Mac. For graphical/X11 functionality one can install XQuartz. Install Mosh (mobile Shell) when roaming or having intermittent connections. Android: JuiceSSH or ConnectBot. Install Mosh (mobile Shell) when roaming or having intermittent connections. Recommended software for filetransfer Windows: MobaXterm or WinSCP Linux: scp OS X and Windows: Cyberduck SSH keys ssh can use login and password to authenticate with the server, but you can also use ssh keys as an alternative authentication method. ssh keys are public-private key pairs that you can generate using the ssh-keygen command on linux. Read the manpage man ssh-keygen to learn more. You can set a password on the private key, to prevent it from being copied and used by someone else to impersonate you. ...

Phishing Trying to acquire useful data, ie login credentials, for abusing someone else’s ICT infrastructure. Methods of phishing In general, phishing works by send a clickable link surrounded by an important message about Salary, payment or a prize, a punishment or fee. This distracts your rational mind and ensures your emotional response controls your mouse-clicking finger. Tip ...

OriginLab Origin by Originlab is scientific graphing and data analysis software. License C&CZ acquired a network license for FNWI for the use of OriginPro. One can get the software and installation/licensing keys of OriginPro from C&CZ system administration. The network license can only be used by computers on the Internet. For standalone use, there are home-use licenses included. The current support contract ends August 2026. If you get a message that the license will expire soon and you are using a standalone version you can update the license by clicking on Activate in the Help menu. ...