Basic exercises with gLite

  • In order to start the basic exercises you need to answer yes to all of these questions:

  • If you answered YES to every single question above, you are ready to use the Gilda Grid Infrastructure. Congratulations!
  • Having saved your certificate in your disk or sd drive (format pk12), and having successfully managed to login to, please copy your pk12 file to a directory .globus in your home (if the directory .globus does not exist, you need to create it).
  • extract your private and public keys (converting pkcs12 to pem):
          openssl pkcs12 -in export.p12 -clcerts -nokeys -out $HOME/.globus/usercert.pem
          openssl pkcs12 -in export.p12 -nocerts -out $HOME/.globus/userkey.pem

    The user certificate can safely be world readable, but userkey.pem must only be readable by you!

          chmod 0400 $HOME/.globus/userkey.pem
  • Go to the GILDA wiki training material web page and follow Old Topics --> User Pages --> Basic

  • Inspect your certificate using the comand grid-cert-info
  • Create a proxy with voms extensions using the command voms-proxy-init --voms gilda
  • Check your voms proxy with the command voms-proxy-info --all
  • Write your first program to run on a grid.
  • If you want to have a look at JDL examples, try the GILDA APPLICATIONS