Linux实现限制远程登录尝试密码次数及锁定时间

[root@node2 ~ ]# vim /etc/pam.d/login

#%PAM-1.0
auth    required    pam_tally2.so    deny=3    unlock_time=100 even_deny_root root_unlock_time=200
auth [user_unknown=ignore success=ok ignore=ignore default=bad] pam_securetty.so
auth       substack     system-auth
auth       include      postlogin
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    required     pam_loginuid.so
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
session    required     pam_namespace.so
session    optional     pam_keyinit.so force revoke
session    include      system-auth
session    include      postlogin
-session   optional     pam_ck_connector.so

[root@node2 ~ ]# vim /etc/pam.d/sshd

#%PAM-1.0
auth    required    pam_tally2.so    deny=3    unlock_time=100 even_deny_root root_unlock_time=200
auth       required     pam_sepermit.so
auth       substack     password-auth
auth       include      postlogin
# Used with polkit to reauthorize users in remote sessions
-auth      optional     pam_reauthorize.so prepare
account    required     pam_nologin.so
account    include      password-auth
password   include      password-auth
# pam_selinux.so close should be the first session rule
session    required     pam_selinux.so close
session    required     pam_loginuid.so
# pam_selinux.so open should only be followed by sessions to be executed in the user context
session    required     pam_selinux.so open env_params
session    required     pam_namespace.so
session    optional     pam_keyinit.so force revoke
session    include      password-auth
session    include      postlogin
# Used with polkit to reauthorize users in remote sessions
-session   optional     pam_reauthorize.so prepare

[root@node2 ~ ]# pam_tally2 --user
Login           Failures Latest failure     From
aihuidi             6    06/20/19 10:11:07  192.168.200.186    在186这个ip上有个普通用户aihuidi登录失败
[root@node2 ~ ]# 

[root@node2 ~ ]# pam_tally2 -r -u aihuidi    解锁aihuidi用户
Login           Failures Latest failure     From
aihuidi             6    06/20/19 10:11:07  192.168.200.186
[root@node2 ~ ]# pam_tally2 --user     在进行查看用户登录失败次数
[root@node2 ~ ]#