IT information for the Dept. of Mathematics

August 26th, 2010 by stromme

On these pages you will find information on and related to the IT system at the Department of Mathematics at UiB.  The various articles are shown in chronological order, as opposed to any reasonably logical order.  You may browse through everything by scrolling down this home page.  Or one of the following may help you find what you want:

If the information you are looking for is related to one of the tags in the right margin, click on that tag and browse through the resulting posts.

If you have a keyword for the information you are looking for, fill your keyword into the search box. You will then find all of our pages containing the keyword.  Most of the posts here are in English, so search for “printing” rather than “utskrift”.

These pages are not a substitute for the helpdesk BRITA! Official support of the IT-system is given by IT-avdelingen. If the system is broken in any way, you should contact them, through Issue Tracker or by phone 55584700.

If you have a general problem which is not dealt with on these pages, then leave a comment to this message describing the problem as good as you can. We will then post your problem as an open problem on this page. With a little luck someone will know a solution to the problem.

Computing resources

March 10th, 2014 by brun

MI computing servers

Name      # cores   Proc. type   Speed     Memory   Date purc.
————————————————————————–

mi-selberg  4*8  AMD Opteron    2GHz      128GB    2010.11.11
mi-ahlfors  4*8   AMD Opteron    2GHz      128GB    2010.11.11
mi-roth      4*8   AMD Opteron    2GHz      128GB    2010.11.11
mi-loke      4*8   Intel Xeon       2.7GHz     384GB   2013.09.05

All of these are running linux the operating system.

Login

‘ssh mi-selberg’, or the corresponding name for the other two machines.

From a VPN connection, you may use ‘ssh mi-selberg.klientdrift.uib.no’.

Be nice policy

Both MATLAB and R have functionality for starting “cloning” processes.

  • Please do not start more than 32 parallel processes (per user/group) on each machine. By “group” it is meant ABM, Pure Math and Statistics.
  • Learn about the “top” command in linux to locate a machine with low current load.

It is the “load average: 0.00, 0.01, 0.05″ on the first line of the output from top that shows the current load of the machine (a load of 64 is acceptable for these machines).

To find out which other members in a group that is using the machine please use the command “finger”.

 

Read the rest of this entry »

Test

June 10th, 2013 by Morten

Test. (After years of hibernation it is possible that this blog will wake up.)

sage

March 2nd, 2011 by stromme

Programsystemet “sage” er nå installert på alle instituttets maskiner.  I en standardinstallasjon ligger det på /usr/local/bin/sage.  Start programmet ved å skrive “sage” i et terminalvindu.  Når sage starter opp, følg anbefalingen om å skrive “notebook()”, så får du et grafisk grensesnitt (i din nettleser) mot sage og alle de programmer som løper under sage.

Fullstendig dokumentasjon finnes på http://sagemath.org/doc/.

Det er også mulig å installere sage på en Mac.

Klientdriftet bærbar Linuxdatamaskin

September 1st, 2009 by brun

If you have a laptop administrated by IT-avdelingen, you find information for getting started in the laptop-document written by IT-avdelingen.

Access home folder from Linux

January 30th, 2009 by brun

Here I explain how you can access your home folder from a remote Linux machine. Read the rest of this entry »

Printing from your Mac

January 9th, 2009 by stromme

To print from a Macintosh running OS X 10.6 (Snow Leopard), follow these instructions. When you get to the point where you are asked to name the print queue (“kø”), refer to this list to get the names of the printers in the department.  For example, the queue for the printer “Emma” in room 532  is “Mi09_emma” (without the quotation marks).

You may remember earlier times when we had to use the “Samba” protocol for printing.  Now it is much easier!

Ubuntu 8.10 on Latitude E5400

November 13th, 2008 by brun

Here is how I installed Ubuntu 8.10 on a Dell Latitude E5400. Read the rest of this entry »

Installation of Ubuntu 8.04

October 23rd, 2008 by brun

Here is how I installed Ubuntu on my machine.
Read the rest of this entry »

VPN on Ubuntu

June 13th, 2008 by brun

The Network Manager program is most likely running on your Linux box. You communicate with it by clicking the symbol with two computer-screens somewhere on the toolbar. It might be wise to reboot the machine after filling in the relevant information in Network Manager before trying to enable VPN. For VPN to work you need the network-manager and network-manager-pptp program packages. See also https://studentwiki.uib.no/tiki-index.php?page=vpn_ubuntu


Remember that username is user@ansatt.uib.no or user@student.uib.no. Gateway is either vpn-ansatt.uib.no or vpn-student.uib.no

web-cache

August 15th, 2007 by brun

If you want remote access to web-pages that are only available from the local network then you may use the university’s web-cache. Information about this is found at ITA Be aware that for example gmail will not work behind this proxy.

Email lists

August 15th, 2007 by stromme

The department has an elaborate system of email lists, which is explained below. The basic lists are:
Read the rest of this entry »

Writing letters in OpenOffice

August 14th, 2007 by brun

Tips and links to templates should appear here.

LaTeX templates

August 14th, 2007 by stromme

Karl Ove Hufthammer has created an unoffical LaTeX document class for Master’s theses at UiB, which is used by most of the statistics students. The document class and the (very unfinished) documentation can be found at /usr/local/share/texmf/tex/latex/mi.uib.no/uib-mi-master/.
Karl Ove says: Feel free to use it!

For Linux users there is a LaTeX document class at the department called mi-brev. Type texdoc mi-brev in a Linux terminal window to view the documentation for this class. It can also be used for private letters and for faxes. (It should also be possible to copy the class to a compatible TeX system on MS Windows or OS X.)

More templates and pointers are still welcome.

Connecting to the wireless network

August 14th, 2007 by stromme

[Update:  The article below was written in 2007.  While it is hopefully still correct, it is now perhaps better to use the "eduroam" wireless network instead, see this article.  SAS]

The university’s wireless net has SSID UiB. Once you have conncted to the wireless net and opened a browser, a dialog box will pop up. Fill in username and password, and you should be able to browse the net, use ssh, print etc. (See separate post on printing.) WARNING: Guests with kurskonto have username of the form username@kurs

You may want (or need) to connect to the VPN (“virtual private network”). Here the difficult part is that your username is user@ansatt.uib.no for employees, and something analogous for students. Currently the gateway vpn-ansatt.uib.no works for employees  (vpn-student.uib.no for students).

Read the rest of this entry »

Macaulay2

August 14th, 2007 by stromme

Linux: Macaulay2 (including Schubert2!) is part of the standard distribution, at /usr/bin/M2.  This may not always be the latest and greatest version, so if you need that, ask Stein Arild or Jan-Magnus for directions.

Mac or Windows PC: You may also run Macaulay2 on your Mac or Windows PC, follow the instruction on http://www.math.uiuc.edu/Macaulay2.

Printing from your PC

August 14th, 2007 by brun

It appears that there are at least three ways to set up printing. Two of them require VPN to be set up, the third works when you are connected to the wireless net without having set up VPN. One of them is “the Microsoft way” and the other two more Unix-like. Remember to check that the papersize is correct after having set up the printer!

The Studentwiki provides step-by-step instructions for setting up printing on Ubuntu machines.
Read the rest of this entry »

Email servers

August 14th, 2007 by brun

For employees the outgiong server is smtp.uib.no and the incoming server is imap.uib.no. See Itavdelingen for more details.

Matlab

August 14th, 2007 by brun

Please help us by providing information for getting starting with this program.

Software for privately run computers

August 14th, 2007 by brun

You may find software for downloading at the ITA download page. The direct link is https://tjinfo.uib.no/program.

Maple

August 14th, 2007 by stromme

Linux: To run Maple in text mode, type maple in your terminal. To run the full windowed version with worksheets and so on, type xmaple& instead.

Maple can also be run on Macs and Windows PCs.

Wireless access for guests

August 14th, 2007 by brun

If you have a guest who has his own laptop with him/her, you can establish a temporary account for him/her that lets him or her connect to the internet via our VPN wireless network. Go to https://tjinfo.uib.no/nettkonto to do this.

Emacs for your Mac

August 10th, 2007 by stromme

I recommend Carbon Emacs if you like Emacs to be like Emacs, like I do. If you want an Emacs that looks like a Macintosh application, have a look at Aquamacs instead.

Access MS Windows from your Mac

August 9th, 2007 by stromme

ITA has a Windows NT server hjemmekontor.uib.no, which can be accessed from a Mac using Microsoft Remote Desktop Connection, which you can download from Microsoft.

Connect your Mac to the wireless network

August 8th, 2007 by stromme

Most of the UiB campus, including the Department of Mathematics, is covered by a wireless network – “Airport network” in apple-speak.
Read the rest of this entry »

Access your ITA home directory

August 8th, 2007 by brun

This post explains how to connect Mac and Linux computers to the central file server.

Read the rest of this entry »

Printing

August 2nd, 2007 by brun

Different programs have different ways to present a print dialogue. Choose one of the printers on this list:
Read the rest of this entry »

MS Windows server

August 2nd, 2007 by stromme

The server is called hjemmekontor.uib.no.

See this post for instructions on how to reach hjemmekontor from Linux, and this post on how to reach it from a Mac.

Network connection

August 2nd, 2007 by brun

See IT-avdelingen for basic information. For connecting a Mac, see this post. For connecting a Linux machine not run by ITA, see this post on VPN. (VPN is needed if you are on the UiB wireless network.)

Some useful information can also be found in the student wiki.

Mounting remote filesystems

August 2nd, 2007 by brun

The command sshfs mounts a remote filesystem. For example the command

sshfs alfred:/People/www/mbr085/ www

mounts the filesystem containing my personal web-pages into the directory www. (For this to work an empty directory called www should already exist.)

Copy to remote servers

August 2nd, 2007 by brun

The commands “rsync” and “scp” allow you to copy files to remote servers. For automathic autentification see the post about remote login from linux machines. Please leave a comment if you have questions about this.

MS Windows server fra Linux

August 2nd, 2007 by stromme

Flere har lurt på hvordan man kan kjøre Windowsprogrammer fra sin Linux arbeidsstasjon.
Read the rest of this entry »

Extra storage space

August 1st, 2007 by stromme

Storage outside your home directory can be used to share files with others. Moreover, if you need a lot of storage space (more than 6 gigabytes), then your home directory is not big enough.
Read the rest of this entry »

How to create a personal webpage

August 1st, 2007 by brun

The procedure for creation of personal webpages is described by
IT-avdelingen
. (Norwegian) If you have extra tips for how to handle personal web-pages, please give them as a comment to this post.

Printers

August 1st, 2007 by stromme

The printers at the department are (note the variable capitalization):
Read the rest of this entry »

Email, private PC and Mac

August 1st, 2007 by stromme

For employees the outgoing server is <smtp.uib.no> and the incoming server is <imap.uib.no>. See It-avdelingen for more details.

Email, Windows

August 1st, 2007 by stromme

For employees the outgoing server is <smtp.uib.no> and the incoming server is <imap.uib.no>. See Itavdelingen for more details.

Email, Linux

August 1st, 2007 by brun

For employees the outgiong server is smtp.uib.no and the incoming server is imap.uib.no. The LDAP server (online address book for all employees and students) is ldap.uib.no, with base DN dc=uib,dc=no and port number 389.

Very useful if you use Thunderbird as your e-mail client. Apple’s Mail.app and probably many other mail programs can also make use of this.

See It-avdelingen for more details.

Emacs

August 1st, 2007 by stromme

There are many editors to chose from. Many people prefer Emacs. If you want Emacs to access remote files it will be an advantage to install one of the newer versions of Emacs.
Read the rest of this entry »