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I have a wcf application hosted in a windows service running a local windows account. Do I need to set an SPN for this account? If so, what's the protocol the SPN needs to be set under? I know how to do this for services over HTTP, but have never done it for net.tcp.

Question author Esteban-araya | Source

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By default (i.e. out of the box) net.tcp services are unsecured and don't perform any authentication at all. So you won't need (and in fact can't) set a service principal name.

If you need to authenticate, then check the net.tcp security modes on MSDN. The best way to understand the different combinations is to experiment!

Answer author Jeremy-mcgee

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