How to enable and disable User in Linux

Disable User in Linux

[root@server ~]#useradd test

[root@ server ~]#passwd test

Output of /etc/shadow file for test user when  enable.

test:$1$sLp5L5bu$ESwE39w1dePwy7a28Gq74/:16541:0:99999:7:::

Method: 1 Disable user manually replace with “!”  

test:!!$1$sLp5L5bu$ESwE39w1dePwy7a28Gq74/:16541:0:99999:7:::

Now, user test can not login in system.

Method: 2 Disable user in linux by command

[root@server ~]#passwd -l test

Output:

test:!!$1$sLp5L5bu$ESwE39w1dePwy7a28Gq74/:16541:0:99999:7:::

To Enable user, use following command.

[root@server ~]#passwd test

test:!!$1$sLp5L5bu$ESwE39w1dePwy7a28Gq74/:16541:0:99999:7:::

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About Penguin Technology

I am a passionate cloud and DevOps professional specializing in Linux and open-source solutions. Through this blog, I share my knowledge and experience with the community, offering tips and insights on cloud technologies and DevOps practices.