How does the user principal know the service

[Chris Hecker]

You ask for a ticket for a specific service in the request.

Chris

On Sat, Jun 23, 2018 at 14:02 ZongtianHou <zongtianhou at icloud.com> wrote:

> Hi, everyone:
> I am a bit confused of the auth process of kerberos. The user principal
> request the AS for a tgt, then use send the tgt to the TGS to get a ticket.
> The ticket was encrypted by the service principal key, But how does the TGS
> know which service principal the user want to access, how the TGS decide
> use which service principal key to encrypt the ticket so that the ticket
> can be decrypted by the server? Can someone give me some clue?
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