What is bin false shell?

What is bin false shell?

If you look more closely at the /etc/passwd file, you will find the /bin/false command as a login shell for many system accounts. Actually, false is not a shell, but a command that does nothing and then also ends with a status code that signals an error. The result is simple.

What is the difference between a user shell of USR sbin Nologin and bin false explain the difference?

Originally, /bin/false has been created for a general command as it always returns non-zero. Then, seems it is used as nologin user’s shell before creating /sbin/nologin. On the other hand, /sbin/nologin has been created for nologin user’s shell, it has a feature to give a message in /etc/nologin.

What is the Nologin shell?

From the man page: nologin displays a message that an account is not available and exits non-zero. It is intended as a replacement shell field to deny login access to an account. If the file /etc/nologin.txt exists, nologin displays its contents to the user instead of the default message.

What does bin false do?

It means, both denies a shell access to a particular user account. /bin/false does nothing and it just exits with a status code indicating failure when a user attempts to login to the machine. It does not output any message indicating that the user account does not have shell access.

Why do some system users have / usr / bin / false as their shell?

If you look more closely at the /etc/passwd file, you will find the /bin/false command as a login shell for many system accounts. Actually, false is not a shell, but a command that does nothing and then also ends with a status code that signals an error. The result is simple. The user logs in and immediately sees the login prompt again.

Is it possible to switch to / bin / false as default shell?

I tend to agree that these are bugs and system users should have /bin/false as their shell unless it appears necessary to do otherwise. Yes, as you have pointed out, you can still switch to users with nologin as their default shell by running sudo with a shell defined, but in this case, you have had to:

Is it safe to use / bin / false as a shell?

There are bugs filed over this issue in Debian (274229, 330882, 581899), currently open and classified as “wishlist”. I tend to agree that these are bugs and system users should have /bin/false as their shell unless it appears necessary to do otherwise.

Is the / bin / false command a login shell?

These are, on one hand, system user accounts. On the other hand, this is an account for which FTP or POP3 access is possible, but just no direct shell login. If you look more closely at the /etc/passwd file, you will find the /bin/false command as a login shell for many system accounts.