Using NIS With C2 Security
If the $PWDIR/security/passwd.adjunct file is present, C2 security is started automatically. ($PWDIR is
defined in /var/yp/Makefile.) The C2 security mode uses the passwd.adjunct file to create
the passwd.adjunct NIS map. In this implementation, NIS allows you to use
both the passwd.adjunct file and shadow file to manage security. The passwd.adjunct file
is processed only when you type the following.
# make passwd.adjunct
The make passwd command processes the passwd map only, not the passwd.adjunct map when
you run make manually in the C2 security mode.