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#1. pwquality 점검 mv /etc/security/pwquality.conf /etc/security/pwquality_old.conf echo -e "minlen = 8\ndcredit = -1\nucredit = -1\nlcredit = -1\nocredit = -1\n" | cat - /etc/security/pwquality_old.conf > /etc/security/pwquality.conf rm -f /etc/security/pwquality_old.conf #2. 계정 잠금 설정 centos 7 sed -i '/auth\s\+required\s\+pam_env.so/a auth        required      pam_faillock.so preauth silent audit..

#1. pwquality 점검 mv /etc/security/pwquality.conf /etc/security/pwquality_old.conf echo -e "minlen = 8\ndcredit = -1\nucredit = -1\nlcredit = -1\nocredit = -1\n" | cat - /etc/security/pwquality_old.conf > /etc/security/pwquality.conf rm /etc/security/pwquality_old.conf #2. faillock 설정 (10번 이상 로그인 실패시 10분간 차단)authselect select sssd --force authselect enable-feature with-faillock sed -i "/# deny = ..