kpasswd
KPASSWD is a service that allows users to change their Kerberos passwords. It is essential for maintaining secure authentication in a network. By using KPASSWD, organizations can ensure that password changes are handled securely and efficiently.
What is kpasswd
KPASSWD is a service associated with the Kerberos authentication protocol, specifically designed for changing user passwords. Kerberos is widely used in network environments to provide secure authentication for users and services. The KPASSWD service operates on port 464 and is a critical component in maintaining the security and integrity of the Kerberos authentication system.
The Kerberos protocol was developed by MIT and has become a standard for secure authentication in many enterprise environments. KPASSWD allows users to change their passwords in a secure manner, ensuring that the new credentials are properly encrypted and transmitted over the network. This helps prevent unauthorized access and potential security breaches.
Organizations that implement Kerberos rely on KPASSWD to manage password changes efficiently. The service ensures that password updates are propagated throughout the network, maintaining consistency and security. By using KPASSWD, administrators can enforce password policies and ensure that users adhere to best practices for password management.
kpasswd runs on TCP and UDP port 464 and is official IANA port.Security risk
If port 464 is open and the KPASSWD service is running, it could be targeted by attackers attempting to intercept or manipulate password changes. Ensuring that the service is properly secured and monitored is crucial to prevent unauthorized access and maintain the integrity of the authentication system.
In our UFW tutorial you can follow instructions how you can configure UFW to close port 464. Use StackChanges to monitor if the kpasswd port is closed and stays closed. StackChanges will send an alert if port 464 is open again.