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This guide is intended as a step to step guide about connecting your NREN to the TCS-escience-portal or TCS-personal-portal. If you need more general information about the portal's pecularities and setup, please consult the more general The Hitchhikerhitchhiker's guide to the TCS-personal galaxy.
So let's go step by step through what you need to do to connect your NREN to either of the portals.
0. Make sure about what portal you want (for the buzzword-literate: "assess your requirements")
Do you need the eScience (Grid) certificates or personal certificates (e.g. for signing e-mails)? Generally you want both, so your customers can decide which type of certificate to request.