Kerberos over HTTP: getting a TGT on a firewalled network
One of the benefits I originally wanted to bring with the FreeIPA move to GNOME contributors was the introduction of an additional authentication system to connect to to the services hosted on the GNOME Infrastructure. The authentication system that comes with the FreeIPA bundle that I had in mind was Kerberos. Users willing to use Kerberos as their preferred authentication system would just be required to get a TGT (Ticket-Granting Ticket) from the KDC (Key Distribution Center) through the kinit command.
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