Contents

  1. Interna
    1. Library
    2. Installation of an operating system
    3. Printers
    4. Backup
    5. LaTeX letter template
    6. Network
    7. Webserver
    8. Fileserver s15.fluid.tuwien.ac.at
    9. s15.fluid.tuwien.ac.at, wombat.fluid.tuwien.ac.at
    10. e-mail
    11. Mathematica and Matlab

Interna

Library

To borrow or return books from the faculty library, the computer in our conference room, BA 07 G12, can be used. The computer is located at the rear wall next to the windows.

Requirements:

  1. TU card or TU library card

  2. books to loan or return, with the barcode from the library inside the front cover

Procedure:

  1. switch on computer and screen, if necessary
  2. click user E322
  3. click on the ALEPH icon on the desktop, login with user TUW322, password tuw322
  4. click the head symbol and register with your TU card or TU library card, using the barcode reader

  5. to borrow: click "|->" symbol (Ausleihe) and read the barcode inside the front cover of individual books
    to return, click on the corresponding button in the list of borrowed books

  6. quit ALEPH, log out, switch off computer and screen

Installation of an operating system

If a new computer comes without a pre-installed operating system, connect the computer with a cable to an active ip-socket. Alternatively, interrupt the booting process to get into the BIOS/EFI and choose "Booting over LAN", "PXE-Booting" or similar. The computer will receive a boot image from the dhcp-server and present a choice of operating systems, courtesy of netboot.xyz.

In the same way, choose "Booting over LAN" as described above to boot into a current live- or rescue-system.

Printers

Status of printers

Printer Installation

Linux:

After installation of a new Linux system, usually the cups-daemon is started. There is nothing else to do.
Alternatively, de-install cups-daemon, leave cups-client installed, and write the line
ServerName 128.130.169.2
into the configuration file, either into the system-wide file /etc/cups/client.conf or into .cups/client.conf in your home directory. Create the file, if needed.

Windows:

Use the dialog under Control Panel -> Devices and Printers -> Add a Printer to individually install printer drivers for each printer. For the canon printer, Canon imageRunner Advance C2230i, use the driver called Generic Plus PCL6 Printer Driver v2.0.

Backup

To backup the data on your desktop computer, set up a script that copies and regularly synchronizes the data to b.fluid.tuwien.ac.at. Follow the description here.

LaTeX letter template

Click here for a tex-template and the necessary files to produce letters which adhere to the corporate design guidelines of TU Wien.

Network

Click here for a list of currently active ip- and telephone sockets. You need to give your credentials.

For a fresh install, configure a static ip-address. Werner Jandl will provide you with an ip-number and needs to know the hostname and MAC-address of your computer. Click here for the remaining parameters for a static configuration. Pay attention to our 25-bit subnet mask, 255.255.255.128, not the usual 24 bit, 255.255.255.0.

Note: A fresh install of an operating system usually tries to acquire an ip-address from a dhcp-server, which will succeed. However, these numbers are very limited and should be used only very temporarily.

Webserver

Anleitung für das Erstellen von web-Seiten. Es gibt eine Beschreibung der technischen Implementation des webservers.    T. Loimer

Fileserver s15.fluid.tuwien.ac.at

To access the file server of our institute, point your web browser to https://s15.fluid.tuwien.ac.at/E322. Log in with the credentials for your e-mail account. At TU Wien, this is called the “upTUdate” account. As a new employee, after having received your tiss account, you must login to tiss and, at the blue side panel on the left, click on "Online account management". On the side that opens, in the table on the top, in the row with "upTUdate" in the first column click on the double arrow in the last column. That will bring you to a page where the password can be set. If in doubt, check at https://mail.intern.tuwien.ac.at. The folder E322 is the public folder. To create a private folder, you have to log in at least once with ssh to s15.fluid.tuwien.ac.at or s15.fluid.tuwien.ac.at. The name files.fluid is an alias of s15.fluid.

As an alternative to accessing files.fluid with the web browser, the /home directory on the file server can be mounted on your local computer. Files on files.fluid then appear as if they were stored locally on your computer. Under Windows, this is known as "Map Network Drive" or "Netzlaufwerk verbinden". Open the file explorer, right click on "Networks", choose "Map Network Drives" ("Netzlaufwerk verbinden") and type https://s15.fluid.tuwien.ac.at. Then, give your credentials.
With nautilus (e.g., under ubuntu) choose "Connect to server" and type davs://s15.fluid.tuwien.ac.at. For kde the line is webdav://s15.fluid.tuwien.ac.at.

s15.fluid.tuwien.ac.at, wombat.fluid.tuwien.ac.at

The two machines s15 and wombat are the computing workhorses of the institute. Both computers can be reached by ssh by all those members of the institute who are listed in the tiss-database.

The credentials to log in to both machines are the same as for your e-mail, check at https://mail.intern.tuwien.ac.at. When authenticating with your TU-credentials, all members of the institute are member of the group E322, group id 2153 and have, by default, read-access to all files and folders of other members of E322. If files should be kept confidential, it is therefore necessary to remove the read-permission for the group from files or folders.

To provide for malfunction of the authentication service, it is probably wise to generate a public/private key-pair with ssh-keygen on your personal computer and append your thusly created public key, .ssh/id_rsa.pub or the more modern .ssh/id_ed25519.pub, to .ssh/authorized_keys in your home directory on the remote computer. For instance, for s15: 

ssh-keygen -o -a 100 -t ed25519 -N ""
# -o          use the new key format; since version 1.319 (Aug. 2018), this
#             is the default, and -o is a no-op
# -a <num>    number of key derivation function rounds
# -t <type>   type of the key (dsa | ecdsa | ed25519 | rsa)
# -N <pass>   new passphrase
cat .ssh/id_ed25519.pub | ssh <username>@s15 'cat >> .ssh/authorized_keys'

The configuration for authentication by querying the TU ldap-server is described here, in german.

S15 is equipped with two CPUs, Intel E5-2680v3 and has 384 GB RAM. The Service Tag is 1X1ZF82, which may be used to find details of the hardware.
Wombat has an even faster CPU, Intel i7 980 @ 3.33 GHz and 25 GB RAM.

Applications

On s15, users can use mathematica, matlab and the NAG-library. Also, under /home/E322/Software, installation files can be copied to install software on one's personal computer.

To use the NAG-libarary, copy the compilation-command from the appropriate script in /usr/local/share/NAG/cll6i26dcl/scripts, or copy the entire script to your working directory. These scripts link with the stand-alone static NAG-library, with the split up NAG-libraries and with shared versions of both.
For instance, to query NAG library implementation details and the status of the license, do 

cp /usr/local/share/NAG/cll6i26dcl/scripts/nagc_example_shar_mkl .
./nagc_example_shar_mkl a00adc

Resource usage on s15

Navigate to http://s15.fluid.tuwien.ac.at/munin to view resource usage for s15.

e-mail

Online-access to your e-mails is available at https://mail.intern.tuwien.ac.at.

Mathematica and Matlab

Matlab and Mathematica are installed on s15.fluid.tuwien.ac.at. Mathematica and Matlab both query a license server. Therefore, these programs can also be installed on your desktop computer, see further below. Fairly recent installation files are usually located under s15.fluid.tuwien.ac.at/home/E322/Software

To use the license server for Mathematica, create the file mathpass in the directory Configuration/Licensing of your mathematica installation and write the line !mathematica.it.tuwien.ac.at into it.

The license server for Matlab is given in a file called network.lic, usually to be found in /usr/local/share/MATLAB/R20XX/licenses/network.lic. This file contains the lines 

SERVER matlab.it.tuwien.ac.at 005056bf2e9e 1751
USE_SERVER

Installation of Matlab

To install matlab on a personal computer, mount the directory on s15 containing the most recent matlab-version, and run the installer with informations given in the file installer_input.txt. This will install a choice of toolboxes to /usr/local/share/matlab/R20XXx. The resulting matlab installation amounts to a bit less than 10 GB. Alternatively, copy the file /home/E322/Software/Matlab/Linux/v*/installer_input.txt to your computer and edit it to your choice. Another alternative is to run the installer interactively, without the -inputFile option. 

mount -t davfs https://s15.fluid.tuwien.ac.at/E322/Software/Matlab/Linux/v9.8_REL2020a /mnt/s15/
/mnt/s15/Direct_Install/install -inputFile /mnt/s15/installer_input.txt
# create links to the executables in your search path
ln -s /usr/local/share/matlab/R2020a/bin/matlab /usr/local/bin
ln -s /usr/local/share/matlab/R2020a/bin/mex /usr/local/bin