CentOS使用PAM锁定多次登陆失败的用户 centos 解锁用户

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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用户；

deny 设置普通用户和root用户连续错误登陆的最大次数，超过最大次数，则锁定该用户

unlock_time 设定普通用户锁定后，多少时间后解锁，单位是秒；

root_unlock_time 设定root用户锁定后，多少时间后解锁，单位是秒；

此处使用的是 pam_tally2 模块，如果不支持 pam_tally2 可以使用 pam_tally 模块。另外，不同的pam版本，设置可能有所不同，具体使用方法，可以参照相关模块的使用规则。

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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