root 계정의 패스워드 만료로 인하여 로그인 불가
----[ Default 값 ]----
[root@10-OS ~]# chage -l root
Last password change : Jun 25, 2015
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
----[ 패스워드 기간 만료 ]----
[root@10-OS ~]# chage -M 1 root
[root@10-OS ~]# chage -l root
Last password change : Jan 01, 2015
Password expires : Jan 02, 2015
Password inactive : Jan 02, 2015
Account expires : never
Minimum number of days between password change : 0
Maximum number of days between password change : 1
Number of days of warning before password expires : 7
----[ 로그인 시도 ]----
[rockplace@10-OS ~]$ su - root
암호:
계정이 만료되었습니다: 시스템 관리자에게 알려 주십시오
su: incorrect password
[rockplace@10-OS ~]$
----[ Single Mode 진입하여 원복 원복 ]----
[root@10-OS ~]# chage -E -1 -I 0 -m 0 -M 99999 root
[root@10-OS ~]# chage -l root
Last password change : Jan 01, 2015
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
----[ 로그인 시도 ]----
[rockplace@10-OS ~]$ id
uid=500(rockplace) gid=500(rockplace) groups=500(rockplace)
[rockplace@10-OS ~]$ su - root
암호:
[root@10-OS ~]# id
uid=0(root) gid=0(root) groups=0(root)
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