1、使用passwd命令锁定与解锁账号
[root@rhel7 ~]# passwd -l testuser --- -l 锁定
Locking password for user testuser.
passwd: Success
[root@rhel7 ~]# passwd -S testuser --- 查看状态
testuser LK 2016-06-20 0 99999 7 -1 (Password locked.)
[root@rhel7 ~]#
[root@rhel7 ~]# passwd -u testuser --- 解锁
Unlocking password for user testuser.
passwd: Success
[root@rhel7 ~]# passwd -S testuser
testuser PS 2016-06-20 0 99999 7 -1 (Password set, SHA512 crypt.)
2、使用usermod命令锁定与解锁账号
[root@rhel7 ~]# usermod -L testuser
[root@rhel7 ~]# passwd -S testuser
testuser LK 2016-06-20 0 99999 7 -1 (Password locked.)
[root@rhel7 ~]# usermod -U testuser
[root@rhel7 ~]# passwd -S testuser
testuser PS 2016-06-20 0 99999 7 -1 (Password set, SHA512 crypt.)
[root@rhel7 ~]#