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ç®ã¯ä»¥äžã®éãã§ãã deny = 3 fail_interval = 900 unlock_time = 1800 deny = 3 : 3åé£ç¶ã§èªèšŒå€±æãããšããã¯ãããŸãã fail_interval = 900 : 15åéïŒ900ç§ïŒã®äžã§çºçãã倱æåæ°ãã«ãŠã³ãããŸãã unlock_time = 1800 : ããã¯çºçåŸã30åéïŒ1800ç§ïŒçµéãããšèªåçã«ããã¯ãè§£é€ãããŸãã æ³šæç¹ ãã¹ã¯ãŒã倿Žã§ã¯è§£é€ãããªã ïŒããã¯äžã«ãã¹ã¯ãŒã倿Žãè¡ã£ãŠã pam_faillock ã®ããã¯ç¶æ
ã¯è§£é€ãããŸããïŒ passwd ãš pam_faillock ã®ç®¡çé åãç¬ç«ããŠããããïŒã 倱æè©Šè¡ã®ç¹°ãè¿ãã«ããå»¶é· ïŒããã¯äžã«ãã°ã€ã³è©Šè¡ãç¹°ãè¿ããšæ°ããªå€±æå±¥æŽã远å ãããããã¯æéïŒ unlock_time ïŒãããã«å»¶é·ãããããšããããŸãã faillock ã³ãã³ãã«ããããã¯ç¶æ
ã®ç¢ºèªæ¹æ³ pam_faillock ã«ããèªèšŒå€±æå±¥æŽããã³ããã¯ç¶æ
ã確èªããã«ã¯ã faillock ã³ãã³ã ã䜿çšããŸãã faillock --user <察象ãŠãŒã¶å> å®è¡çµæã®äŸïŒ When Type Source Valid 2026-09-01 15:25:51 TTY pts/1 V 2026-09-01 15:25:59 TTY pts/1 V 2026-09-01 15:26:06 TTY pts/1 V Valid åã« V ã衚瀺ãããŠãã詊è¡ãæå¹ãªå€±æèšé²ãšããŠã«ãŠã³ããããŠããããããæå®åæ°ïŒ deny ã®å€ïŒã«éãããšããã¯ç¶æ
ãšãªããŸãã Linux ã§ã®åäœæ€èšŒæé å®éã« LinuxïŒä»å㯠Red Hat Enterprise Linux 8ïŒç°å¢ã§ pam_faillock ã®åäœã確èªããæé äŸã§ãã 1. ãã¹ãçšãŠãŒã¶ã®äœæ # useradd testuser # passwd testuser 2. SSSDã®æå°æ§æèšå®ãšèµ·å # cat &lt;&lt; 'EOF' > /etc/sssd/sssd.conf [sssd] config_file_version = 2 services = nss, pam domains = files [domain/files] id_provider = files EOF # chown root:root /etc/sssd/sssd.conf # chmod 600 /etc/sssd/sssd.conf # systemctl enable --now sssd 3. authselect ã«ãã faillock ã®æå¹å # authselect enable-feature with-faillock # authselect apply-changes # authselect current 4. faillock.conf ã®èšå® # cp -p /etc/security/faillock.conf /etc/security/faillock.conf.org # cat &lt;&lt; 'EOF' >> /etc/security/faillock.conf deny = 3 fail_interval = 900 unlock_time = 60 EOF 5. æå³çãªèªèšŒå€±æãšããã¯ç¢ºèª äžè¬ãŠãŒã¶ãžåãæ¿ããäžã§ããããšãã¹ã¯ãŒããééããŠãã°ã€ã³ã詊ã¿ãŸãã # su - testuser # ãã¹ã¯ãŒãã3å以äžééãã ãã®åŸãroot ãŠãŒã¶ã§å€±æå±¥æŽã確èªããŸãã # faillock --user testuser ãŸãšã Linux ã§ããã¹ã¯ãŒãèšå®ã¯æ£åžžïŒ PS ïŒãªã®ã«ãã°ã€ã³ã§ããªããå Žåã¯ã pam_faillock ã«ããäžæãã㯠ãçãã /var/log/secure ã faillock --user <ãŠãŒã¶å> ã³ãã³ãã§ç¶æ
ã確èªããããšãæå¹ã§ãã ã芧ããã ãããããšãããããŸããïŒ åèããã¥ã¡ã³ã ãpam_faillock(8) â Linux manual page ã https://man7.org/linux/man-pages/man8/pam_faillock.8.html ãfaillock(8) â Linux manual page ã https://man7.org/linux/man-pages/man8/faillock.8.html ã芧ããã ãããããšãããããŸãïŒ ãã®æçš¿ã¯ã圹ã«ç«ã¡ãŸãããïŒ åœ¹ã«ç«ã£ã 圹ã«ç«ããªãã£ã 0人ããã®æçš¿ã¯åœ¹ã«ç«ã£ããšèšã£ãŠããŸãã The post OSSãµããŒãã®çŸå ŽããïŒäžæçãªã¢ã«ãŠã³ãããã¯ã®åå ãšã¯ first appeared on SIOS Tech Lab .





















