The usermod command also works on the /etc/passwd file so you can use the passwd -S user_name command to check the status of the user.But usermod also works with the /etc/passwd file so this means the locked user could still be able to login via SSH keys, right? I’ll show you how to deal with it in the next section.To lock the user, you can use the -L option in this manner:How do you verify if the user is locked or not? That’s right. Example1: Disable or lock user account using passwd command. Even more importantly, how do you unlock the user in Linux? Method 1: Lock and unlock users with passwd command. What it does is that it disables the account on a past date and then locks it.Make sure that the past date is between 1970-01-02 and the current date.There is a similar way to lock the user in Linux with chage command. For this purpose we are going to use lsof(8) and lslk(8) tools.. To do so, use the following shell script.Create The Users list. 1)Disable the login with passwd command. Open your Ubuntu command line, the Terminal, either through the application launcher search or the Ctrl+Alt+T shortcut. Two exclamation mark will be added in front of the password, if the account is already locked.You can check the locked user account details by greping the given user name from /etc/passwd file.We can enable the user ssh access by assigning back to the old shell.If you would like to lock/unlock more than one account then you need to look for script.Yes, we can write a small shell script to perform this. There is a utility called Gnome Screensaver that lets you lock your Ubuntu screen through the command line.
To lock a user with the passwd command, you can use the option -l or –lock in this manner: passwd -l user_name Below are some ways you can disable an user in Linux. Each user should be in separate line.Use the following shell script to lock multiple users account in Linux.Use the following shell script to check locked users account in Linux.Use the following shell script to unlock multiple users account in Linux.5 Easy ways to free up space (Remove unwanted or junk files) on Ubuntu sudo lsof /var/lib/dpkg/lock sudo lsof /var/lib/apt/lists/lock sudo lsof /var/cache/apt/archives/lock If password policy is already implemented in your organization, then you no need to look for this options.However, if you had set up lock period for 24 hours you might need to unlock the user’s account manually.This tutorial will help you to manually lock and unlock users account in Linux.This can be done using the following two Linux Commands in three ways.To check the given user account is available or not in system  use You can check the locked account status either by using passwd command or grep the given user name from /etc/shadow file.Checking the user account locked status using passwd command.This will show few short information about the status of the password of given account.You can check the locked account status by using either passwd command or grep the given user name from /etc/shadow file.Checking the user account locked status using passwd command.This will show a short information about the status of the password for a given account.Checking the locked user account status using /etc/shadow file. I have shown here three methods to lock and unlock users in Linux. Since it only works with the /etc/passwd file, the locked user will still be able to log in via SSH keys (if login via SSH key is set). The usermod command is a one-stop solution for modifying a user account and houses an option to lock a user account password. With a simple -L flag, usermod just does the job. Use passwd command with -l option to lock the user account, as the passwd is disabled for the user. To lock your screen before you leave your desk, either Ctrl+Alt+L or Super+L (i.e., holding down the Windows key and pressing L) should work. You can see the details like this:You can remove the expiry date and thus unlock the user in this manner:As always, there are various ways to accomplish a task in Linux command line. You can use the passwd command for locking or unlocking an account on a Linux operating systesm. But there are ways to overcome this problem.Another method is to lock the user and provide an expired date in the past. Let’s see it in the next section.The chage command is used for changing the user password expiry information.
Run the passwd command with the -l switch to lock the given user account. 2)Set the user account expiry time with usermod command or chage command. [donotprint] [/donotprint] Do share it in the comment section.Great! A normal user may only change the password for his/her own account, the super user (root) may change the password for any account. In this post we will see how you can find and remove locked files on a GNU/Linux system. Do you know a better way or do you have some best practices suggestion for locking users? Then enter the following command as … How do you lock a user account in Linux?

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