To use one of the Kerberos-based authentication methods, install the 32-bit Kerberos RTL image SYS$SHARE:KRB$RTL32.EXE. For example, enter the following command:

$ INSTALL CREATE SYS$SHARE:KRB$RTL32.EXE/OPEN/HEADER_RESIDENT/SHARED

To use gssapi-with-mic authentication on the SSH client or server, you must also install the 32 bit GSSAPI RTL image SYS$SHARE:GSS$RTL32.EXE. Enter the following command:

$ INSTALL CREATE SYS$SHARE:GSS$RTL32.EXE/OPEN/HEADER_RESIDENT/SHARED

In the system startup file, make sure that the Kerberos startup command procedured (KRB$STARTUP.COM) runs only after the TCP/IP Services for OpenVMS startup command procedure (TCPIP$STARTUP.COM) has been run.