1. gLite authentication and authorization Discipline: Grid Computing, 07/08-2 Practical classes Inês Dutra, DCC/FCUP

2. 2 Certificates INSPECTING PERSONAL CERTIFICATE  Look inside your certificate grid-cert-info  Important information Creation and expiration date Name and subject of the CA Common Name (CN) of the certificate owner Certificate subject

3. 3 Login Creation of a proxy with voms extensions  This step is like doing a login on the grid. voms-proxy-init --voms gilda Attention: use the same pasword you used to retrieve your certificate

4. 4 Checking the VOMS proxy CHECK YOUR VOMS PROXY  To get info about your proxy voms-proxy-info -all  It shows two different lifetimes: First is related to the proxy itself The second one is referred to the AC infos added by the VOMS server.  Important: your proxy has lifetime of 12 hours

5. 5 Proxy Register a long living proxy in the MyProxy server (grid001.ct.infn.it)  Allows you to create and store a long term proxy certificate myproxy-init --voms gilda  The –s option allows you to specify the name of the myproxy server you want to contact myproxy-init --voms gilda –s grid001.ct.infn.it

6. 6 Still myproxy-init Register a long living proxy in the MyProxy server (grid001.ct.infn.it)  The –l option allows you to create and store a long term proxy with a name specified by the user myproxy-init --voms gilda –s grid001.ct.infn.it –l GILDA_TUTOR  Each user can create and store several proxies in a myproxy server, but each remote proxy is linked to the specified username

7. 7 Still myproxy Gather information about the proxy in the MyProxy server  I f in your UI there is no local proxy, it´s not possible to be authenticated in the myproxy server  In this case it is needed to get a delegate proxy from the MyProxy server or create a local proxy with voms-proxy-init

8. 8 Get a delegated proxy from the MyProxy server  It allows you to get a proxy from the myproxy server  Destroy the proxy in the local machine and verify it doesn´t exist anymore voms-proxy-destroy voms-proxy-info couldn´t find a valid proxy

9. 9 Still proxies Get a delegated proxy from the MyProxy server  Now in your UI (virtual o real), there is no local proxy.  To get a proxy from the myproxy sever myproxy-get-delegation –s grid001.ct.infn.it

10. 10 Still proxies Get a delegated proxy from the MyProxy server  With –d option myproxy-get-delegation –s grid001.ct.infn.it –d  Verify now that the user has a local proxy voms-proxy-info

11. 11 Still proxies Destroy remote proxy  You can destroy your remote proxy myproxy-destroy –s grid001.ct.infn.it  Check your remote proxy myproxy-info –s grid001.ct.infn.it

12. 12 Still proxies Destroy remote proxy  Destroy your remote proxy with -d myproxy-destroy –s grid001.ct.infn.it -d  Check your remote proxy with -d myproxy-info –s grid001.ct.infn.it -d

13. 13 Still proxies Destroy remote proxy  Destroy your remote proxy with -l myproxy-destroy –s grid001.ct.infn.it –l GILDA_TUTOR  Check your remote proxy with -l myproxy-info –s grid001.ct.infn.it –l GILDA_TUTOR