configuration error - unknown item 'LOGIN_PLAIN_PROMPT' (notify administrator) received on user/group commands after hiding hostname in telnet-server

Solution Verified - Updated -

Issue

  • After configuring /etc/login.defs to hide the hostname for telnet, several user commands (usermod, useradd) give this error:
configuration error - unknown item 'LOGIN_PLAIN_PROMPT' (notify administrator)

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

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