Kerberos V5 Applications
Kerberos V5 is a single-sign-on system. This means that you
only have to type your password once, and the Kerberos V5 programs
do the authenticating (and optionally encrypting) for you. The way this
works is that Kerberos has been built into each of a suite of network
programs. For example, when you use a Kerberos V5 program to
connect to a remote host, the program, the KDC, and the remote host
perform a set of rapid negotiations. When these negotiations are
completed, your program has proven your identity on your behalf to the
remote host, and the remote host has granted you access, all in the
space of a few seconds.
The Kerberos V5 applications are versions of existing UNIX network
programs with the Kerberos features added.