Transcript ppt

Introduction to Practical facilities
Diego Romano
Network Connections
Internet
8Megabit
4Gigabit
Lecture Room
Internet connection
and workstations
sponsored by
Switch-Switch: 1Gb
WS-WS: 100Mb
Servers Room/
Registration Desk
LAN sponsored by
Servers
sposored by
Local Network Services
• Low Level Network Service:
– DNS
– DHCP
– NTP
– NFS
– NIS
• Other services:
– Web
– FTP
– SMTP
Local Web
www.gs.unina.it
It’s a replica of the official web site.
Contains:
All the information about the school
Material (slides + exercises)
Announcements
FTP server
ftp.gs.unina.it
Linked by the web page Curriculum
Could contain:
Your pictures made during the School
/pub/pictures/make-your-own-folder
Username: anonymous
Password: any
SMTP server
smtp.gs.unina.it
Use this if your email client needs an
outgoing SMTP relay to send email.
Works only locally, needs no password
No incoming mail server
Firewall
WARNING:
No firewall between local network and the
Internet.
If using your own private laptop, for your
security set your local rules properly !
Obtaining access to the network
Italian law asks ISSGC06 to record users
identification data digitally before giving
them access. This is done by scanning
passports or ID cards.
(More details are on the leaflet you received
during registration, if needed ask the
registration desk to obtain it again).
Setting up the connection using
your laptop
1. Provide MAC address of your network
interfaces to the STAFF
2. Wired network:
•
Connect and try to obtain configuration information
automatically by using DHCP protocol
4. Wireless Network:
•
•
Configure your laptop to connect to ISSGC06
network using the hidden ESSID: gridschool
and without any encryption
Connect and try to obtain configuration information
automatically by using DHCP protocol
10.17.17.some-number cases
1. You did not provide us with your ID
document or the right MAC address
2. Something went wrong with the
registering procedure
In any case:
Please contact the STAFF
10.0.0.some-number case
1. You are connecting to Jolly Hotel
Wireless Network. It is not for free, and it
is quite expensive.
Change ESSID to: gridschool
If you have still problems:
Please contact the STAFF
IN ANY CASE
Do not try to use a static hard coded IP
address by assigning it arbitrarily by hand!!
This would not assure you a better
connection…
…and in any case, the police could complain
about that
(In our records we are linking addresses
with IDs digital copies)
Obtaining access to the
workstations
You have been provided with a document
explaining all the rules and some FAQ.
On that document there is also your username
and password.
Due to a change to our security policy, we
changed passwords on Saturday.
Check if it works, otherwise talk to the STAFF
Operating system
• Workstation and Practical Servers run
Scientific Linux CERN versions 3.0.4.
• Decision was made due to compatibility
restrictions from some supported
middleware.
Software configuration
• Software you are supposed to know about
already (partially)
• Middleware you will learn about at the
School
Software you are supposed to
know about
• Sun J2SE Software Development Kit (j2sdk) version
1.4.2_11
• GNU gcc C compiler version 3.2.3
• GNU g++ C++ compiler version 3.2.3
• GNU glibc standard C Library 2.3.2
• GNU libstdc++ C++ Standard Library v3 version 3.2.3
• GNU Make version 3.79.1
• Apache Ant version 1.6.5
Ant and j2sdk binaries are in users PATH. The following
environment variables are set:
– ANT_HOME=/usr/java/apache-ant-1.6.5
– JAVA_HOME =/usr/java/j2sdk1.4.2_11
Software & Middleware for
practicals
• Tomcat version 5.0.28
• Gnuplot version 3.7.3
• Condor version 6.7.19
Software & Middleware for
practicals
• Globus toolkit version 4.0.2
• gLite 3.0
• OMII 2.3.3 client
Condor
• Workstations and condor.gs.unina.it run
master, startd and schedd daemons
• condor.gs.unina.it also runs collector and
negotiator.
Globus Toolkit (GT4)
• GT4 installed on each workstation and on:
xeon1.gs.unina.it, xeon2.gs.unina.it
• gLite and GT4 use the same
GLOBUS_LOCATION environment
variable. Default is for gLite.
• More information during GT4 tutorial
gLite
• User Interface on workstations
• WMSLB+BDII on dualxeon.gs.unina.it
• Storage Element DPM on
opteron.gs.unina.it
• Will use Gilda testbed remotely for LFC,
Computing Element and Worker Nodes
OMII
• OMII client on workstations
• OMII server on dualxeon.gs.unina.it
OGSA-DAI
• On each workstation
• More details during tutorial
Printer
• pizza.gs.unina.it
• It’s already configured on the workstations
• It’s a PostScript printer
• The name of the queue is pizza