Shulou(Shulou.com)06/02 Report--

Because of the security requirements of the online server, some security measures have been taken, including that the user's password will be locked if the number of errors is exceeded.

Last week, because the expiration date of the average user has expired, the password needs to be updated, but after changing the password, I can no longer log in.

Similar situations have been encountered before, where input errors such as more than 3 times may be locked for a period of time, such as more than ten minutes. However, it is still not possible to log in again the next day. Several days later, the user was still locked out.

This week, I found an article on the Internet and found a command, which finally solved the problem of user locking.

[root@iZ2325ncZ] # pam_tally2-r-u binqibu

Reference document: the method of locking user login and forbidding login after N login failures under https://www.jb51.net/article/132827.htm--Centos7

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