Install krb5-user by entering the following commands in the terminal:
sudo apt update sudo apt install krb5-user
Description:
basic programs to authenticate using MIT Kerberos
Kerberos is a system for authenticating users and services on a network. Kerberos is a trusted third-party service. That means that there is a third party (the Kerberos server) that is trusted by all the entities on the network (users and services, usually called "principals"). . This is the MIT reference implementation of Kerberos V5. . This package contains the basic programs to authenticate to MIT Kerberos, change passwords, and talk to the admin server (to create and delete principals, list principals, etc.).
Homepage: http://web.mit.edu/kerberos/
Version: 1.16-2build1
Section: universe/net