Where are the passwords stored for changing between different groups?

Where are the passwords stored for changing between different groups?

In the Linux operating system, a shadow password file is a system file in which encryption user password are stored so that they aren’t available to people who try to break into the system. Ordinarily, user information, including passwords, is kept in a system file called /etc/passwd .

How do I set a sudo password?

The -S (stdin) option allow the sudo command to read password from a standard input instead of a terminal device. If you want to store the password in a file you can use the cat command instead of echo like the following example.

How to allow Sudo to another user without password?

If my login were user1 and the user I want to ‘su’ to is user2: It needs a bit of configuration though, but once done you would only do this: And you would be logged in as user2 without entering a password. To configure sudo, you must edit its configuration file via: visudo.

What does Sudo stand for in Linux system?

sudo (“superuser do”) is nothing but a tool for Linux or Unix-like systems to run commands/programs as another user. Typically as a root user or another user.

How to switch ( Su ) to another user account without password?

To allow users in a specific group to switch to another user account without a password, we can modify the default PAM settings for the su command in the /etc/pam.d/su file. Add the following configurations after “auth sufficient pam_rootok.so ” as shown in the following screenshot.

What happens if I don’t know the password for another user?

Any other user will be prompted to enter the password of the user account they are switching to (or if they are using the sudo command, they will be prompted to enter their password), if they don’t provide the correct password, they get an “ authentication failed ” error as shown in the following screenshot.