How do I set up NIS to use passwd.adjunct on Red Hat Enterprise Linux?

Solution Verified - Updated -

Issue

  • How do I set up my Red Hat Enterprise Linux system to support the NIS passwd.adjunct map?

NB: Be aware that whilst this procedure will prevent password data being visible to casual inspection via ypcat, NIS is not considered secure by today's standards as password hashes are still transmitted across networks without being encrypted.

Environment

  • Red Hat Enterprise Linux
    • Red Hat Enterprise Linux 5, 6, 7, 8
  • NIS

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