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How to Check and Set the User account status in Linux

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user account status in linux

There are few commands available in linux that can be used to see if any user account status on your Linux machine is locked or not.

If you are interested in learning, Request you to go through the below recommended tutorial.

How to Check and Set the User account status in Linux

Case 1: User Password is Locked

In this case the password of any account is locked using the below command

To lock the password in Linux

# passwd -l user1
Locking password for user user1.
passwd: Success

Review the status in /etc/shadow
# grep user1 /etc/shadow user1:!!$6$ciJaoDR9$Qpt9sctRLjbZ4/Agxy9UOvu/XQqNrFo9rpgfZ/xrF/8JphkEvF29ITpef0SVLdJcrpv8Q/.6mRAHee4tZT0r11:16299:0:99999:7:::

As you can see above two exclamation mark (!!) before the encrypted password which means that the password has been locked

To unlock the password in Linux

# passwd -u user1
Unlocking password for user user1.
passwd: Success

Case 2: Linux User Account is Locked

In this case the user account might have been locked by the administrator

To lock an account

# usermod -L user1

Review your /etc/shadow file for the changes
# grep user1 /etc/shadow

As you see an extra single exclamation mark(!) appeared in the password section before the encrypted password starts which signifies that the user account is locked

To unlock a user account

# usermod -U user1

Case 3: User Password not set

This can also be the scenario where the administrator has not assigned any password due to which the user is not able to login

So to verify this again you need to check your /etc/shadow file
# grep user1 /etc/shadow

As you see two exclamation mark(!!) is there but no encrypted password which means a password is not set.

If the password was set without lock your /etc/shadow would look like something below.
# grep user1 /etc/shadow

Check the lock status of any Linux Account

Now one single command to see the lock status of the user
# passwd -S user1
user1 LK 2014-08-17 0 99999 7 -1 (Password locked.)

If the user account is unlocked you will output like below.
# passwd -S user1
user1 PS 2014-08-17 0 99999 7 -1 (Password set, SHA512 crypt.)

Related Content on Linux might be useful to you to improve your Linux Skills.

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