CentOS使用PAM锁定多次登陆失败的用户的教程_RedHat/Centos_操作系统_

#%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 

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。

#%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

[root@node100 pam.d]# pam_tally2 --user redhat Login Failures Latest failure From redhat 7 07/16/12 15:18:22 tty1

[root@node100 pam.d]# pam_tally2 -r -u redhat Login Failures Latest failure From redhat 7 07/16/12 15:18:22 tty1