命令簡介： 該命令用於密碼時效管理。它可以修改賬號和密碼的有效期。對於chage命令的描述如下所示： The chage command changes the number of days between password changes and the date of the last pass...
命令簡介：
該命令用於密碼時效管理。它可以修改賬號和密碼的有效期。對於chage命令的描述如下所示：
The chage command changes the number of days between password changes and the date of the last password change. This information is used by the system to determine when a user must change his/her password
命令語法：
chage [options] user
命令參數：
| 參數 | 描敘 |
| -d | 指定密碼最後修改日期 |
| -E | 密碼到期的日期，過了這天，此賬號將不可用。0表示馬上過期，-1表示永不過期。 |
| -h | 顯示幫助信息並退出 |
| -I | 密碼過期後，鎖定賬號的天數 |
| -l | 列出用戶以及密碼的有效期 |
| -m | 密碼可以更改的最小天數。為零代表任何時候都可以更改密碼。 |
| -M | 密碼保持有效的最大天數。 |
| -W | 密碼過期前，提前收到警告信息的天數。 |
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使用示例：
1: 查看chage命令的幫助信息
[root@DB-Server ~]#man chage
[root@DB-Server ~]# info chage
[root@DB-Server ~]# chage -hUsage: chage [options] user
Options:
-d, --lastday LAST_DAY set last password change to LAST_DAY
-E, --expiredate EXPIRE_DATE set account expiration date to EXPIRE_DATE
-h, --help display this help message and exit
-I, --inactive INACTIVE set password inactive after expiration
to INACTIVE
-l, --list show account aging information
-m, --mindays MIN_DAYS set minimum number of days before password
change to MIN_DAYS
-M, --maxdays MAX_DAYS set maximim number of days before password
change to MAX_DAYS
-W, --warndays WARN_DAYS set expiration warning days to WARN_DAYS
2：查看mysql用戶以及密碼的有效期
[root@DB-Server ~]# chage -l mysqlLast password change : Mar 26, 2015
Password expires : never
Password inactive : never
Account expires : never
Minimum number of days between password change : -1
Maximum number of days between password change : -1
Number of days of warning before password expires : -1
[root@DB-Server ~]#
3：設置mysql用戶60天後密碼過期，至少7天後才能修改密碼，密碼過期前7天開始收到告警信息。
[root@DB-Server ~]# chage -M 60 -m 7 -W 7 mysqlYou have new mail in /var/spool/mail/root[root@DB-Server ~]# chage -l mysqlLast password change : Mar 26, 2015
Password expires : May 25, 2015
Password inactive : never
Account expires : never
Minimum number of days between password change : 7
Maximum number of days between password change : 60
Number of days of warning before password expires : 7
[root@DB-Server ~]#
4：強制新建用戶第一次登陸時修改密碼
[root@DB-Server home]# useradd test[root@DB-Server home]# passwd testChanging password for user test.New UNIX password:
Retype new UNIX password:
passwd: all authentication tokens updated successfully.
[root@DB-Server home]# chage -d 0 testYou have new mail in /var/spool/mail/root[root@DB-Server home]# chage -l testLast password change : password must be changed
Password expires : never
Password inactive : never
Account expires : never
Minimum number of days between password change : 0
Maximum number of days between password change : 99999
Number of days of warning before password expires : 7
