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#%PAM-1.0

auth required pam_tally2.so deny=3lock_time=300 even_deny_root root_unlock_time=10

auth [user_unknown=ignoresuccess=okignoreignore=ignore default=bad] pam_securetty.so

auth include system-auth

account required pam_nologin.so

account include system-auth

password include system-auth

# pam_selinux.so close should be the first session rule

session required pam_selinux.so close

session optional pam_keyinit.so force revoke

session required pam_loginuid.so

session include system-auth

session optional pam_console.so

# pam_selinux.so open should only be followed by sessions to be executed in the user context

session required pam_selinux.so open

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even_deny_root 也限制root用戶(hù)；

deny 設(shè)置普通用戶(hù)和root用戶(hù)連續(xù)錯(cuò)誤登陸的最大次數(shù)，超過(guò)最大次數(shù)，則鎖定該用戶(hù)

unlock_time 設(shè)定普通用戶(hù)鎖定后，多少時(shí)間后解鎖，單位是秒；

root_unlock_time 設(shè)定root用戶(hù)鎖定后，多少時(shí)間后解鎖，單位是秒；

此處使用的是 pam_tally2 模塊，如果不支持 pam_tally2 可以使用 pam_tally 模塊。另外，不同的pam版本，設(shè)置可能有所不同，具體使用方法，可以參照相關(guān)模塊的使用規(guī)則。

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#%PAM-1.0

auth required pam_tally2.so deny=3unlock_time=300 even_deny_root root_unlock_time=10

auth include system-auth

account required pam_nologin.so

account include system-auth

password include system-auth

session optional pam_keyinit.so force revoke

session include system-auth

session required pam_loginuid.so

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[root@node100 pam.d]# pam_tally2 --user redhat

Login Failures Latest failure From

redhat 7 07/16/12 15:18:22 tty1

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[root@node100 pam.d]# pam_tally2 -r -u redhat

Login Failures Latest failure From

redhat 7 07/16/12 15:18:22 tty1