Jmmc/VltiSchool2010 > SchoolComputers (r58)

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Note: This web site runs actually under twiki and will be saved statically in the comming weeks. If you want to bookmark this web site, please use the following url which will be permanent: http://www.jmmc.fr/VltiSchool2010 One copy of the key informations will also be saved under the European Interferometry web site.

Computers Facts

Desktop Machines

The LOC has set up a whole practice room full of 22 desktop PC running GNU/Linux Mandriva 2010 32bits.

Each desktop computer in the tutorial room upstairs is ready for you with a 'linux' account (no password).

Data

Once you start using one workstation, we advise you to keep working with the same computer in order to keep access to your previous data.

Please note that there is NO BACKUP at all performed on desktops, so it is UP TO YOU to take care of your data !!!

Tutorials data are either available in:

/home/linux/
/school/data/
/school/tutorials/

Some files could also be shared through the network in /home/nfsShare/

Scientific Software

All the school-related software are pre-installed in /school/soft/. Everything should work out of the box, without further configuration !

Here is a list of scientific software available on each desktop:

Software	Documentation	How to launch it
amdlib	http://www.jmmc.fr/data_processing_amber.htm	just type `emacs -f yorick` in a konsole
Aspro	http://www.jmmc.fr/aspro	Do not use the jmmc web site launcher, just type `aspro` in a konsole You can also have a preview on the new aspro version using `Aspro2`
IDL		just type `idl` in a konsole
LITpro	http://www.jmmc.fr/litpro you can use the online help in the menu application	Do not use the jmmc web site launcher, just type `LITpro` in a konsole
MIA	http://mia/ ( this url is only valid onto the school network )
Oifits Validator	http://www.jmmc.fr/oival	web app
oifitslib		only `oifits-merge` is installed
python
scisoft	copy following URL in Firefox : file:///scisoft/doc/
SearchCal	http://www.jmmc.fr/searchcal you can use the online help in the application menu bar	Do not use the jmmc web site launcher, just type `SearchCal` in a konsole
yorick	Quick guide, Full doc	just type `emacs -f yorick` in a konsole
Topcat	The soft gets it own online help	type `topcat-full` in a konsole
Aladin	The soft gets it own online help	type `Aladin` in a konsole ( case sensitive on the local machines )

Local WiFi

You can also connect your personnal laptop to the local network using WiFi:

network name (aka SSID) : eii
authentication protocol : WPA
network password : vltischool

When connected, read school content over http://server/twiki

Your laptop should be configured to use DHCP in order to get a valid IP address.

Web Sites Access

A local web server has be set up and is available on http://server.org/twiki/

. To learn more about TWiki, visit the TWiki web.

Here are some reference websites replicated on the local network for your convenience:

http://www.vlti.org/home.php.html
http://vltischool.obs.ujf-grenoble.fr
http://www.european-interferometry.eu
http://www.jmmc.fr
Part of olbin database available from JMMC web site : http://www.jmmc.fr/bibdb/olbin (some images from NASA are missing, anyway...)
http://mia
http://mira
http://www.eso.org/

Because the network is standalone (i.e not connected to Internet), those website mirrors may not be complete (external references missing, pictures, ...).

Internet Connection

There is no free Internet connection provided by IGESA, so desktop computers cannot access the Internet.

But 3 paid connection tokens (one person at a given time) can be shared (!) amongst participants using WiFi and your own laptop: The expired ones have been deleted to keep the list simple.

SSID	login	password
`orange`	`VY0GK06`	`R5K178738`	Please do not forget to close the session! Somebody forgot to log out on Sunday?
`orange`	`VM8093O`	`WKHSCG721`	Please do not forget to close the session

Some hotels downtown also provide free WiFi access you can wardrive to use wink

LOC-related informations. Not useful for the students. LOC-related informations. Not useful for the students.

Network

All desktop PC are networked and connected to a central server for administration and data distribution purpose.

Workstation Map

The host names of workstations are DC-7800-nn for IP address 192.168.0.nn, where nn is written on each workstation sticker.
Here is a map of the tutorial room seen from the server desktop at the back near workstation 01 while looking at the front of the room:

              ------
              | 01 | 
 -------------------------------
 | 20 | 17 | 14 | 07 | 22 | 27 | 
 -------------------------------
 -------------------------------
 | 06 | 23 | 21 | 05 | 10 | 19 | 
 -------------------------------
 --------------------------
 | 25 | 13 | 02 | 16 | 04 | 
 --------------------------
 --------------------------
 | 29 | 11 | 26 | 03 | 24 | 
 --------------------------

Printing

A HP Color LaserJet 2605dn

network printer is available on 192.168.0.249.

Server

A central server have been prepared and installed by Sylvain and Guillaume, mainly to distribute data and software and provide the following services:

NFS server, dynamically distributing data stored on the server (in /mariotti/home/data/porquerolles/nfsShare/) to each workstation (accessible in /home/nfsShare/);
HTTP server, accessible from any workstation or laptop on the eii WiFi by pointing your favorite web browser to http://server.org;
RPM database server for software installation;

The school-related data on the server are in /mariotti/home/data/porquerolles/.
The /mariotti/home/data/porquerolles/school/ server subdirectory is the source of all data replicated on each workstation.
Teachers can put some files in it and distribute them to all workstations at once using a single command (as root) : rsyncFromMacminiToClients.sh

Other commands can also be run (as root) on all the clients at once using PSSH : pssh -P -t -1 -h /root/hostList.txt "urpmi --auto mpmath"

The server IP address is 192.168.0.250.

After a server reboot (electricity shortage, ...), you should enter the following commands (as root):

cd /root/porquerolles/admin
./serverSetup.sh

[root@server admin]# more /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
IPADDR=192.168.0.250
NETMASK=255.255.255.0
GATEWAY=192.168.0.254
ONBOOT=yes
METRIC=10
MII_NOT_SUPPORTED=yes
USERCTL=no
DNS1=192.168.0.1
RESOLV_MODS=no
LINK_DETECTION_DELAY=6
IPV6INIT=no
IPV6TO4INIT=no
ACCOUNTING=yes

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