guide:Access
From Dgiref
Contents |
notes
To get access to the Grid you need to fulfill a few preliminary registration steps:
- Get a valid Grid user certificate certificate from any of the two German Certification Authorities, GridKa-CA or DFN-Verein PCA.
- Load your personal certificate into your browser as explained here.
- Visit D-Grid's User Portal page http://www.d-grid.de/index.php?id=246 and select the VO which best fits you (use dgtest for testing purposes, or your community's VO otherwise). After you complete the membership request step, your registration will wait for the VO administrator to approve it.
- Eventually you need to transfer your own certificate to the correspondent user interface in order to work with the middleware.
middleware
 |
Globus Toolkit
You need to have a minimal Globus installation in order to work with Globus. For test purposes you can use the globus 4.0 installation on the reference installation frontend dgiref-login.fzk.de. The fronted can be accessed by GSI-SSH (Port 2222) like the following:
$GLOBUS_LOCATION/bin/gsissh -p 2222 dgiref-login.fzk.de
For mor information on how to use Globus please see the Globus User Guide.
WARNING:
- Due of incompatibilities between Globus 4.2 and Globus 4.0, you can access Globus 4.2 resources only from a Globus 4.2 client installation.
gLite
To work with gLite you need to install a gLite User interface on your own computer. If you cannot, or do not want to, install the gLite 3.1 User Interface software package on your own computer, you will additionally need to get access to your site's UI if available (ask your site admin), or use the public D-Grid UI ui.d-grid.de. This UI can be accessed by GSI-SSH (Port 2222) like the following:
$GLOBUS_LOCATION/bin/gsissh -p 2222 ui.d-grid.de
Once logged in a gLite UI you will have access to all the grid middleware clients and be able to work on the grid. For detailed instructions on submitting jobs and other grid tasks, please see the gLite User Guide.
Unicore
A various of Unicore clients are provided with Unicore. For more information and to download your preferred client please see the Unicore User Guide.
dCache
The dCache Client is already included with the gLite User Interface Package. Please see the Glite Section
Ogsa-DAI
Please see the OGSA-DAI section for more information.
GSISSH
In order to get interactive access to ressources using GSI-SSH you need to install the GSI-SSH client on your own computer. The gsissh client is usually included with every globus installation. Alternatively you can use GSI-SSH Term a java based GSI-SSH Client (working also under Windows). For more informations please refer to GSI-SSH Term documentation
