Which file contains information about failed login attempts on a Unix system?
Which file contains information about failed login attempts on a Unix system?
The file that contains information about failed login attempts on a Unix system is 'btmp'. It logs all the bad or failed login attempts. The 'wtmp' file keeps track of all logins and logouts, while the 'utmp' file holds information about users currently logged in. The 'ctmp' file is not standard in Unix systems for logging purposes.
C is the right answer
https://www.thegeekdiary.com/what-is-the-purpose-of-utmp-wtmp-and-btmp-files-in-linux/