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In the 1970s, Grace Hopper, also known as "Grandma COBOL", pushed for the Defense Department to replace large, centralized systems with networks of small, distributed computers.
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nisauthconf(1m) [bsd man page]

nisauthconf(1M) 					  System Administration Commands					   nisauthconf(1M)

nisauthconf - configure NIS+ security SYNOPSIS
nisauthconf [-v] [mechanism,...] DESCRIPTION
nisauthconf controls which authentication flavors NIS+ should use when communicating with other NIS+ clients and servers. If the command is not executed, then NIS+ will default to the AUTH_DES authentication flavor when running security level 2. See rpc.nisd(1M). nisauthconf takes a list of authentication mechanism's in order of preference. An authentication mechanism may use one or more authentica- tion flavors listed below. If des is the only specified mechanism, then NIS+ only use AUTH_DES with other NIS+ clients and servers. If des is the first mechanism, then other authentication mechanism's after des will be ignored by NIS+, except for nisaddcred(1M). After changing the mechanism configuration, the keyserv(1M) daemon must be restarted. Note that doing so will remove encryption keys stored by the running keyserv process. This means that a reboot usually is the safest option when the mechanism configuration has been changed. The following mechanisms are available: +-----------------------------+-----------------------------+ | Authentication mechanism | Authentication Flavor | +-----------------------------+-----------------------------+ |des |AUTH_DES | +-----------------------------+-----------------------------+ |dh640-0 |RPCSEC_GSS using 640-bit | | |Diffie-Hellman keys | +-----------------------------+-----------------------------+ |dh1024-0 |RPCSEC_GSS using 1024-bit | | |Diffie-Hellman keys | +-----------------------------+-----------------------------+ If no mechanisms are specified, then a list of currently configured mechanisms is printed. OPTIONS
-v Displays a verbose table listing the currently configured authentication mechanisms. EXAMPLES
Example 1: Configuring a System with only RPCSEC_GSS Authentication Flavor To configure a system to use only the RPCSEC_GSS authentication flavor with 640-bit Diffie-Hellman keys, execute the following as root: example# /usr/lib/nis/nisauthconf dh640-0 Example 2: Configuring a System with both RPCSEC_GSS and AUTH_DES Authentication Flavors To configure a system to use both RPCSEC_GSS (with 640-bit Diffie-Hellman keys) and AUTH_DES authentication flavors: example# /usr/lib/nis/nisauthconf dh640-0 des Example 3: Transitioning to Other Authentication Flavors The following example can be used while adding credentials for a new mechanism before NIS+ is authenticating with the new mechanism: example# /usr/lib/nis/nisauthconf des dh640-0 Note that except for nisaddcred(1M), NIS+ will not use mechanisms that follow 'des.' EXIT STATUS
The following exit values are returned: 0 Successful completion. 1 An error occurred. FILES
/etc/rpcsec/nisplussec.conf NIS+ authentication configuration file. This file may change or be removed in future versions of Solaris. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWnisu | +-----------------------------+-----------------------------+ SEE ALSO
nis+(1), keyserv(1M), nisaddcred(1M), rpc.nisd(1M), attributes(5) NOTES
A NIS+ client of a server that is configured for either dh640-0 or dh1024-0 must run Solaris 7 or later, even if the server is also config- ured with des. NIS+ might not be supported in future releases of the SolarisTM Operating Environment. Tools to aid the migration from NIS+ to LDAP are available in the Solaris 9 operating environment. For more information, visit SunOS 5.10 12 Dec 2001 nisauthconf(1M)

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