UNIX for Dummies Questions & Answers

Hi,
I have tried a lot online to find about this command. I coudnt find a satisfactory explanation.
I need some background on kinit command.
Can someone please explain it?

kerberos lets a user login to one node in a network and then be granted "tickets" to allow access to other nodes in the same network with having to authenticate (login with a password).

kinit is the first step in setting up the kerberos authentication by granting "tickets" - the tokens kerberos uses to set you up as a trusted user.

What are you trying to do? This is kind of an unusual question unless it is homework of some sort.

Thanks Jim..!!
Can someone please post an example of how to use the command.