技術標籤：Linuxlinux

練習題一

確保新建使用者具有必須30天更改一次密碼

[[email protected] ~]# vim /etc/login.defs 

應 該 為 M A X = 30 \color{#FF3030}{應該為MAX=30} 應該為MAX=30

練習題二

建立新組consultants，GID設為35000

[[email protected] ~]# groupadd -g 35000 consultants
[[email protected] ~]# tail -1 /etc/group
consultants:x:35000:

練習題三

為consultants的所有成員配置管理許可權，使其能夠以任何使用者身份執行任何命令

[[email protected] ~]# vim /etc/sudoers

練習題四

建立consultants1、consultants2、consultants3使用者，並使consultants作為他們的補充組

[[email protected] ~]# useradd -G consultants consultants1
[[email protected] ~]# useradd -G consultants consultants2
[[email protected] ~]# useradd -G consultants consultants3
 

[[email protected] ~]# grep  -w consultants /etc/group
consultants:x:35000:consultants1,consultants2,consultants3

練習題五

將consultants1、consultants2、consultants賬戶設為從當天起90天過期

[[email protected] ~]# chage -M 90 consultants1
[[email protected] ~]# chage -M 90 consultants2
[[email protected] ~]# chage -M 90 consultants3
 

[[email protected] ~]# chage -l consultants3
Last password change					: Dec 23, 2020
Password expires					: Mar 23, 2021
Password inactive					: never
Account expires						: never
Minimum number of days between password change		: 30
Maximum number of days between password change		: 90
Number of days of warning before password expires	: 7

正 確 為 ： \color{#FF3030}{正確為：} 正確為：

#chage -E $(date -d "+90 days" +%F) consultants1

練習題六

更改consultants2賬戶的密碼策略，使其每15天要求建立新密碼

[[email protected] ~]# chage -m 15 consultants2
[[email protected] ~]# chage -l consultants2
Last password change					: Dec 23, 2020
Password expires					: Mar 23, 2021
Password inactive					: never
Account expires						: never
Minimum number of days between password change		: 15
Maximum number of days between password change		: 90
Number of days of warning before password expires	: 7

應 該 為 M A X = 15 \color{#FF3030}{應該為MAX=15} 應該為MAX=15

練習題七

另外，強制consultants1、consultants2、consultants3使用者在第一次登入時更改密碼

[[email protected] ~]# chage -d 0 consultants1
[[email protected] ~]# chage -d 0 consultants2
[[email protected] ~]# chage -d 0 consultants3
[[email protected] ~]# chage -l consultants1
Last password change					: password must be changed
Password expires					: password must be changed
Password inactive					: password must be changed
Account expires						: never
Minimum number of days between password change		: 30
Maximum number of days between password change		: 90
Number of days of warning before password expires	: 7