Install Kerberos V5 on each client machine, according to the instructions in the Kerberos V5 Installation Guide.
Tell your users to add the appropriate directory to their paths. On
UNIX machines, this will probably be
Note that if you upgrade your client machines before all of your application servers are upgraded, your users will need to use the Kerberos V4 programs to connect to application servers that are still running Kerberos V4. (The one exception is the UNIX version of Kerberos V5 telnet, which can connect to a Kerberos V4 and Kerberos V5 application servers.) Users can use either the Kerberos V4 or Kerberos V5 programs to connect to Kerberos V5 servers.