#Kkerberos in simple terms

Kerberos is a computer network authentication protocol that helps to verify the identity of users and services. It was originally developed at MIT and is now widely used in many organizations.

Here's how it works:

1. A user logs into their computer and requests access to a network resource.
2. The user's computer sends a request to the Kerberos authentication server to obtain a ticket-granting ticket (TGT).
3. The Kerberos server verifies the user's identity, creates a TGT and sends it back to the user's computer.
4. The user's computer uses the TGT to request access to the specific resource they want to access.
5. The resource server sends a message to the Kerberos server to verify the TGT.
6. The Kerberos server confirms the TGT is valid and sends a message back to the resource server, granting access to the user.

The TGT is only valid for a limited time and can only be used to access the specific resource for which it was granted. This helps to prevent unauthorized access to network resources and keeps user identities secure.

Overall, Kerberos is an important tool for ensuring the security and integrity of computer networks by verifying the identity of users and services.