EGEE-II INFSO-RI Enabling Grids for E-sciencE EGEE Tutorial Getting started with GILDA

Enabling Grids for E-sciencE EGEE-II INFSO-RI Scope We are using the GILDA testbed –The production EGEE grid looks like this! –Current EGEE production middleware –GILDA is one VO on EGEE  resources for training and prototyping The practical exercises are to illustrate “how” –Not using typical jobs for running on a grid!! –But to show how grid services are used, jobs are submitted, output retrieved,… We will use the Command-Line Interfaces on a “User Interface” (UI) machine –“UI” is your interface to the GILDA Grid  Where your digital credentials are held  Client tools are already installed

Enabling Grids for E-sciencE EGEE-II INFSO-RI GILDA is “t-Infrastructure” Why “t-infrastructure”? –Training is necessary! –e-Infrastructure for production –t-Infrastructure for training Need dedicated resources for tutorials; limit the vulnerability of production systems –use training grid –have training CA –able to change middleware to prepare participants for future releases on production system –need safe resources for installation training –easy entry point for new communities

Enabling Grids for E-sciencE EGEE-II INFSO-RI The GILDA t-Infrastructure 19 sites in 3 continents > 3000 certificates issued, >15% renewed at least once > 100 tutorials and demos perfor- med in 23 months > 1,000,000 hits (> 50,000 unique visits) on (of) the web site from 10’s of different countries > 0.6 TB of training material downloaded from the web site (Sep. 2006)

Enabling Grids for E-sciencE EGEE-II INFSO-RI For Practicals in this event Certificates and private keys from GILDA CA –Tutors registered the certificates at GILDA VO Certificates and keys are available on the GILDA user interface machine: glite-tutor.ct.infn.it

Enabling Grids for E-sciencE EGEE-II INFSO-RI Trust and use of GILDA GILDA is provided by some 20 organisations for training events. You usually sign a commitment before using a grid - to make appropriate use of the resources that other organisations have opened to you Trust is the basis of Grid computing. You are trusted to be responsible in your use of GILDA.

Enabling Grids for E-sciencE EGEE-II INFSO-RI Bookmark today’s agenda Go to the agenda page for this event as follows: – –Link to today’s event is in the “news” PLEASE WAIT - You will be given a user number

Enabling Grids for E-sciencE EGEE-II INFSO-RI After you have been given a user number: Then use ssh to connect to glite-tutor.ct.infn.it –usernames --> manchester01....manchester25 –passwords --> GridMAN01....GridMAN39 –Certificate passphrase: MANCHESTER –ssh –ALWAYS USE THE SAME ACCOUNT DURING ALL OF THIS EVENT – REMEMBER YOUR NUMBER!! Logging on to GILDA

Enabling Grids for E-sciencE EGEE-II INFSO-RI You already have a certificate pre- installed ls -l.globus/ total 12 -rw-r--r-- 1 manchester40 users 1797 Mar 19 07:10 manchester40.p12 -rw-r--r-- 1 manchester40 users 1115 Mar 19 07:10 usercert.pem -r manchester40 users 963 Mar 19 07:10 userkey.pem

Enabling Grids for E-sciencE EGEE-II INFSO-RI voms-proxy-init Create a VOMS proxy – you are in the GILDA VO $ voms-proxy-init --voms gilda Cannot find file or dir: /home/manchester40/.glite/vomses Your identity: /C=IT/O=GILDA/OU=Personal Certificate/L=manchester/CN=manchester40/ =mj Enter GRID pass phrase:MANCHESTER Creating temporary proxy Done Contacting voms.ct.infn.it:15001 [/C=IT/O=INFN/OU=Host/L=Catania/CN=voms. ct.infn.it] "gilda" Done Creating proxy Done Your proxy is valid until Mon Mar 19 21:09:

Enabling Grids for E-sciencE EGEE-II INFSO-RI What’s in the VOMS proxy? voms-proxy-info --all subject : /C=IT/O=GILDA/OU=Personal proxy issuer : /C=IT/O=GILDA/OU=Personal identity : /C=IT/O=GILDA/OU=Personal type : proxy strength : 512 bits path : /tmp/x509up_u6385 timeleft : 11:48:35 === VO gilda extension information === VO : gilda subject : /C=IT/O=GILDA/OU=Personal issuer : /C=IT/O=INFN/OU=Host/L=Catania/CN=voms.ct.infn.it attribute : /gilda/Role=NULL/Capability=NULL timeleft : 11:48:15 2 credentials

Enabling Grids for E-sciencE EGEE-II INFSO-RI Getting access to GILDA  Instruction for usershttps://gilda.ct.infn.it/ Issue a certificate from GILDA CA Join the GILDA VO  Get your account on UI