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# cat /etc/pam.d/common-password è ¾Æ·¡ 3line Ãß°¡
#password requisite pam_pwcheck.so nullok cracklib
#password required pam_unix2.so use_authtok nullok
password required pam_pwhistory.so use_authtok remember=8
##Áö³ 8¹øÀÇ PW ±â¾ïÇÏ°í µ¿ÀÏÇÑ°Ç ¾ÈµÊ
password requisite pam_cracklib.so minlen=8 ucredit=-1 dcredit=-1 ocredit=-1
# ´ë¹®ÀÚ + ¼ýÀÚ + Ư¼ö¹®ÀÚ ÃÖ¼Ò1°³ ÀÌ»ó = ÃÑ 8°³µÇ¾ßÇÔ
password required pam_unix2.so use_authtok nullok
# cat /etc/pam.d/common-auth è ¾Æ·¡ 1line Ãß°¡
auth required pam_env.so
auth required pam_unix2.so
auth required pam_tally.so deny=5 onerr=fail per_user no_lock_time
# 5¹ø ½ÃµµÈÄ ¶ôÀ¸·Î Àá±è
# cat /etc/pam.d/common-account è ¾Æ·¡ 1line Ãß°¡
account required pam_unix2.so
account required pam_tally.so