The primary motivations behind the Grid Security Infrastructure are:
The need for secure communication (authenticated and perhaps confidential) between elements of a computational Grid.
The need to support security across organizational boundaries, thus prohibiting a centrally-managed security system.
The need to support "single sign-on" for users of the Grid, including delegation of credentials for computations that involve multiple resources and/or sites.
For more information check this Globus toolkit web page.
If you install your Terradue's certificate in your favorite browser you can be automatically recognized by the Terradue's Portal, Trac and svn.
For this, you just have to install your personal Terradue's certificate in your favorite Internet browser and present it when logging in. [...]
The open source Globus Toolkit is a fundamental enabling technology for the "Grid," letting people share computing power, databases, and other tools securely online across corporate, institutional, and geographic boundaries without sacrificing local autonomy. The toolkit includes software services and lib [...]
A gridftp server doesn't require any particular hardware configuration as the
only service needed has not a big impact on the machine itself but only on
the network traffic. Ideally such server has large disks and a gigabit eth
card, but whatever machine can be used: larger t [...]
Please contact Terradue's Certificate Authority (ca at terradue.com) stating the project or collaboration you are involved, what are the current components that you need to use and your contact details.
Generally generating new certificate takes some working days for identity confirmatio [...]
It clearly means that your proxy certificate is expired :)
Proxies are certificates signed by the user, or by another proxy, that do not require a password to submit a GRID job. They are intended for short-term use, when the user is submitting many jobs to the GRID and [...]
