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First steps

First of all you will need a grid certificate. Nearly everything about it is described on Grid certificates at DESY. If you work on the DESY-Zeuthen campus, please do not send the filled-out "DESY identification form" to UCO in Hamburg directly! Give it to Simone Wassberg (office: 1R/21) instead. Please also bring along your passport or id-card in order to validate your identity.

Grid User Interface

MyProxy Server

Proxy certificates have a limited life time, only. In order to e.g. run periodically tasks with valid proxy certificates you can use our MyProxy server (

Store a long-living credential (30 days in this case) on the MyProxy server. It can be retrieved by the user "$USER" later:

[your-wgs] ~ % myproxy-init -c $((30*24)) -n -Z $USER

{i} As the environment variable $MYPROXY_SERVER is predefined on all SL6 nodes, you don't need to specify the server.

Retrieve a fresh proxy certificate with enabled VOMS extension (in this case: 'icecube' VO):

[your-wgs] ~ % myproxy-logon -n -m icecube
A credential has been received for user <user> in /tmp/x509up_u<your-uid>.

{i} Authentication is done using your Kerberos ticket. So it can perfectly be used inside ACron jobs!

You might want to check the received proxy certificate with:

[your-wgs] ~ % voms-proxy-info --all

Further documentation

Grid/User_Info (last edited 2017-06-15 13:16:41 by ManuelaBrehmer)