FAQ and Howtos

  • Access to D-MATH network using ‘tango’
    Tango is the D-MATH remote desktop solution based on ThinLinc from Cendio. You can easily connect to a Linux- or Windows desktop inside the D-MATH network from anywhere. If you are connecting from outside you will need a VPN tunnel to the ETHZ. Requirements A working VPN client described on…
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  • Address Book
    Here we will describe how to configure your Address Book for LDAP (Lightweight Directory Access Protocol aka Internet directory services). The information that you need are the following: Server Address: ldap.ethz.ch Server Port: 389 (default) Search Base DN: o=ethz,c=ch Important: Note that this LDAP Server ist only reachable from ETH Networks…
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  • Audio/Video (digital projector) support and rental
    Many rooms at ETH already have a built-in beamer. Following website gives you some info about what's installed in a room: http://www.rauminfo.ethz.ch ISG D-MATH supports the technical infrastructure in the D-MATH rooms (e.g. HG G 19.1, HG G 19.2, HG G 43). If you need support for other rooms then…
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  • Backup: I deleted a file… how can I restore it?
    We have 3 different tools to restore deleted data. The first one (very fast) is only usable if the deletion occurred in the last 7 days; the other tools work even for older data. Solution 1 - with "snapshots" If you deleted a file or a directory now or in…
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  • Central Clients of D-MATH
    Central Clients are powerful computers in the server room, running Fedora. The software available is the same as on the Linux desktops at the D-MATH. We distinguish between two types of Central Clients: Compute Clients and Load Clients. Compute Clients Application area: compute jobs (!) like R or matlab which…
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  • Changing your password
    You can change your ETH passwords using the web center at https://passwort.ethz.ch. After you logged in, click on "Self Service" and then on "Change password". Then select a group of passwords that you want to change (LDAPS, Active Directory, Radius), enter the new password twice and click on "Save" (note the…
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  • Citrix / Back Office Applications
    The requirements and installation procedure is very well documented on the following page: https://ethz.ch/services/de/lehre/lehrbetrieb/it-services-lehrbetrieb/admin-applikationen/backoffice-applications.html But for linux systems there is one additional step required. You need to add the ssl certificate, to be able to connect to the ETHZ servers. You only need to do the part "Installation der Zertifikate":…
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  • Color printing
    The default printer configuration on all our managed computer is black and duplex. The following OS specific instructions explain how to print color documents and are specific for the new HP Color LaserJet printers (introduced in March 2020). macOS Create a "color" preset Print using the "color" preset Fedora Linux…
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  • Create a Git Repository
    As a D-MATH employee you can have up to 10 Git Projects on our gitlab server located at https://gitlab.math.ethz.ch/ Please don't save big data files and binary files (like compiled codes, PDF files, images, ...) in your repository. Ideally a repository has to contains only source codes. You can collaborate with every ETH…
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  • Grant Permissions on a Git Repository
    If you have a git repository and you like to grant permissions to a existing user, this can be done like the following: After you logged in click on your project, to enter it's details: Now on the navigation to the left you find "Members", where you can manage your…
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  • Home office for D-MATH members
    We explain below what you have to do to be able to work efficiently from your home, for instance how to setup a secure network connection to the ETH Zurich using VPN (eg. to access ETHIS, electronic resources like journals, file shares, ...), how to access your e-mails, your files…
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  • How can someone send me big files?
    If some collaborator (a non ETH member) needs to send you a big file (up to 1 GB), then you can set up a "file drop" folder using polybox and sent the generated link for the upload to the person. For ETH members see here. Set up the "file drop" folder as described…
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  • How do I send a big file to someone?
    You want to send a file (by mail) to a colleague but the mail server rejects your attempt because the file is too big (usually bigger than 5 - 20 MB)? Here are some tips on how to "send" huge files: Use the Polybox sharing feature: Log in to https://polybox.ethz.ch…
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  • How to Protect a Webpage with a Password
    Suppose you want to protect the sub-page "secure" of your homepage with a password; that is you want that the visitors are asked for a username and a password when accessing a webpage: https://people.math.ethz.ch/~USERNAME/secure/ To do that you first have to create the directory "secure" with the correct permissions: mkdir…
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  • How to Syncronize your Files – Unison
    Unison is a file-synchronization tool for Linux, Mac and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating the changes in each replica to…
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  • Howto use docker at D-MATH
    To use docker at D-MATH is to use podman -> https://podman.io/ With podman we are able to provide a possibility that a user without administrative rights can download and run docker images. The following example shows howto run a docker image and transfer files. First open a terminal and go…
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  • Leaving ETH Zurich
    Please talk to your supervisor and / or ISG D-MATH before leaving ETH about what should happen with your scientific data. The following webpage of the central IT services gives some information about the expiration of services provided by ETH Zurich (e.g. e-mail, Wi-Fi/VPN, ...) - it is however possible…
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  • Linux Environment Modules at the D-MATH
    With Environment Modules or simply called Modules it is possible to dynamically expand the active user environment and to remove it again without closing the shell. At the D-MATH modules are used for: providing applications in different versions,customising the personal library environment,setting environment presets for institutes and groups. Modules are…
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  • List of Printers at D-MATH
    The following color printers and copiers can be accessed from all the ETH computers (incl. using VPN). We strongly recommend to use the "follow me" printer "card-ethz" or "card-hp". NAMECATEGORYMODELQUEUEcard-ethzMC3HP Color LaserJet MFP E77830zcard-ethzp-hg-e-62-2MC3HP Color LaserJet MFP E77830zp-hg-hp005p-hg-f-28-1MC3HP Color LaserJet MFP E77830zp-hg-hp006p-hg-f-42-1MC4HP Color LaserJet MFP E57540cp-hg-hp007p-hg-g-14-1MC3HP Color LaserJet MFP E77830zp-hg-hp008p-hg-g-21-1MC3HP…
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  • Mailing-Lists of D-MATH
    All mailing-lists are viewable in a convenient way with a dynamic visualisation tool that represents the mail structure with a tree layout. URL: https://isg.math.ethz.ch/mailinglists click on the name of a list to expand or to collapse the sub-tree double click on the name of a list to show only that list…
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  • OS X problem with 802.1X
    When you get following pop-up-window about 802.1X, after you logged in or connected your network cable open the network preferences: click on the "Advanced..." button: select the "802.1X"-tab (1), uncheck the "Enable automatic connection" (2) and click on the "OK"-button (3): and the last step: confirm your changes by clicking…
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  • Personal homepage
    Read this blog for an alternative solution to create a personal homepage with corporate design. If you want instead a personal homepage with "full control", read below. General information The URL (address) of your homepage is/will be the following: https://people.math.ethz.ch/~username The main file that you need has to be called index.html. You…
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  • Personal homepage with ETH Layout
    One possible way to have a personal homepage at the Department of Mathematics with a corporate design is described below. Configuration Open a terminal (for OS X: Menu > Finder > Go > Utilities > Terminal) on a computer of D-MATH – for instance on ion-4 – i.e. ssh ion-4 and…
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  • Polybox Cloud Storage
    Please use Polybox instead of Dropbox whenever possible. The advantages of Polybox are: Polybox is a service of ETH Zurich Data is stored at ETH Zurich Every user has 50 GB of storage space (more is possible upon request) Polybox is installed on all our Mac and Linux clients. The…
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  • Printing at D-MATH
    General Information The main features of the ETH Print Service are print from WLAN, VPN and "file upload", secure printing using the "follow me" printer queues card-ethz or card-hp, comfortable copying and scan to email or USB stick. To release print-jobs (sent for instance to card-ethz or card-hp), use the copier…
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  • Remote Support
    "A picture is worth a thousand words." In case we need to give you remote support on your computer, we may ask you to run the "remote support client". This will enable us to control your computer during the time this application is connected. First you need to download the -> Remote Support…
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  • Request a Gitlab Account for People without an ETH Account
    To collaborate in Gitlab with people who don't have an ETH account, you have to send a request to the ISG with the following information: First Name Last Name E-Mail Address We will then create a new account in gitlab, it will automatically send a E-Mail to the new user…
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  • Secure File Transfer (SFTP) to the D-MATH network
    SFTP can be used on all platforms, incl. Linux, Windows and Mac to transfer files to / from the D-MATH fileservers. Instructions for each platform can be found here: Linux (also Mac OS X, all Unix and Windows) Graphical User Interface (also Mac OS X and Windows) Commandline (also Mac…
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  • Settings for TeXShop (and other Mac TeX-Editors)
    In order to use TeXShop with the TeX-installation at D-MATH with MacOS 10.14 or older you need to change a few configuration settings: TeXShop --> Preferences There the "Engine" settings for the paths have to be changed as follows: (pdf)TeX: /usr/local.hg/app/teTeX/current/bin/universal-darwin Distiller (ghostscript): /sw/bin Note: It's no longer necessary to change…
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  • SSH Access to D-MATH network from outside
    For instance, lets suppose that you want to access the central client ada-18. In this case just start the VPN client and then open a terminal and enter following command: ssh pytharski -l <eth-username> Now you should see following screen and at the "Hostname"-prompt - enter for example "ada-18":
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  • SSH key fingerprints of D-MATH hosts
    When connecting to a new OpenSSH server for the first time you'll be prompted to accept its host key - but how do you know if it is valid? username@asterix ~$ ssh sftpmath The authenticity of host 'sftpmath (129.132.119.199)' can't be established. RSA key fingerprint is SHA256:o8jYLjJZIkG8+V474HcSdUVJTvSjYOYT3qQi8+8kFtE. Are you sure…
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  • Tensorflow
    On our Linux devices we are providing a Python Tensorflow Module ready to use that is accessible trough a Linux Environment Module. With the command "module" you have the possibility to add Tensorflow in many different versions. By default the newest is chosen. First, you need to pick the right Python…
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  • Tipps for smartphones and tablets, recommended apps
    Configuration of mail, calendar: general: https://www.ethz.ch/services/en/it-services/catalogue/email-calendar/mailbox.html (=> see below "Instructions / FAQ / How To / Tips") Important: use username@ethz.ch (and not @math.ethz.ch) for configuration, then most of the configuration will be automatic. VPN-client: https://www.ethz.ch/services/en/it-services/catalogue/networks-connections/remote.html WLAN: https://blogs.ethz.ch/isgdmath/wireless-networks Using your smartphone or tablet abroad: It's a good idea to use the VPN-client…
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  • Using “screen” to run simulations on a remote host
    The suggested way to run your simulations on a remote host (let say for instance on ada-18) is to use screen, which allows you to: use multiple shell windows from a single SSH session keep a shell active even through network disruptions disconnect and re-connect to a shell sessions from…
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  • Using a Shared Mailbox and/or Calendar
    When several persons need to access the same mailbox – for instance the one of a secretariat – then you need a so called Shared Mailbox. To setup such a mailbox, please contact us to. Accessing a Shared Mailbox/Calendar via OWA (Webmail) This is the simplest way to access a Shared Mailbox:…
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  • Where to buy computers and peripherals
    Please contact us if you want to buy computers and peripherals with ETH funding as special rules apply. Recommended shops for private purchases It's always a good idea to compare prices at Toppreise (https://www.toppreise.ch) before spending a lot of money. Neptun shop for Apple, HP, Lenovo laptops and some peripherals (http://www.projektneptun.ch):…
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  • Wi-Fi and VPN configuration
    Below you find the recommended configuration for Wi-Fi (WiFi / Wireless / WLAN) and VPN (Virtual Private Network) for members of the D-MATH. Wi-Fi Some information On existing eduroam or eduroam-5 connections only the username changes from <username>@ethz.ch to <username>@staff-net.ethz.ch. The Wi-Fi SSIDs (name of the wireless network) eth, eth-5,…
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