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Kerberos authentication process in linux


kerberos authentication process in linux

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The ticket granting service carries out an authentication check similar to that performed by the authentication server, but this time sends credentials and a ticket to access the requested service.
For examples of adding a user to MongoDB as well as authenticating as that user, see.
Windows Active Directory Unlike on Linux systems, mongod and mongos instances running on Windows do not require access to keytab files.Principals belong to administrative units called realms.Without A and PTR DNS records, the host cannot resolve the components of the Kerberos domain or the Key Distribution Center (KDC).Mutex is initialized with a value of 1 and is_authenticated with a value of false.The initial request is sent as plaintext because no sensitive information is included in the request.This video provides a quick demonstration of how Kerberos works.



On Windows, if running MongoDB as a service, see Assign Service Principal Name to MongoDB Windows Service.
However, from the Windows Active Directory, you can export a keytab file for use on Linux systems.
Since Windows 2000, Microsoft has incorporated the Kerberos protocol as the default authentication method in Windows, and it is an integral component of the Windows Active Directory service.User Principal, to authenticate using Kerberos, you must add the Kerberos user principals to MongoDB to the external database.Service Principal, every MongoDB mongod and mongos instance (or mongod.Microsoft recommends a maximum lifetime of 600 minutes for service tickets; this is the default value in Windows Server implementations of Kerberos.For example, if m is a MongoDB server, and m maintains the M Kerberos realm, then m1 should have the service principal name mongodb/.Kerberos authentication uses conventional shared secret cryptography to prevent packets traveling across the network from being read or changed and to protect messages from eavesdropping and replay attacks.


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