[만료기간관리]
(확인) chage -l basoft
(변경) 최소 사용 기간 : chage -m 7 cgvapp
        최대 사용기간  : chage -M 180 root

[비번실패 횟수 관리]
(조회)   pam_tally2 -u basoft
(Lock해제/초기화) pam_tally2 -u basoft -r
(설정변경)
/etc/pam.d/system-auth
  -> auth        required      pam_tally2.so onerr=fail unlock_time=0
  --> 무제한으로 설정하려면 deny 옵션을 제거하거나 큰 값을 설정하고 unlock_time 값을 0으로 변경하여 잠금 해제를 할 수 있습니다.

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