Opbzil

Password Management

Use chage to change age etc of a password

option	what it does
M	sets maximumum time for password
m	sets minimum time for password before you can change it
E	set a password expiration date
W	how many warning days you get
I	how many days after your password expired you will be allowed to login using old password

example

chage -m 0 -M 90 -W 7 -I 14 sysadmin05

If you are trying to figurec out an epiration date use

[root@host ~]# date +%F 
2022-03-10
[root@host ~]# date -d "+30 days" +%F 
2022-04-09

To force and account to change password use

 chage -d 0 cloudadmin10

Usermod can also be used to affect a users login

option	what it does
L	this will lock a users account
-s /sbin/nologin	will not give a user a bash shell