Questions tagged [btmp]

btmp records failed login attempts.

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btmp output fields meaning

Situation: last -f /var/log/btmp should show me all failed logins on the particular system. Problem: The following lines can be found in /var/log/btmp (IP addresses masked for privacy): root ssh:...
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What can cause a non-zero session length time in /var/log/btmp?

/var/log/btmp, the log read by default by the lastb command, stores information about failed login attempts. I'm looking at a snippet of a file and seeing what I understand to be minutes of logged-in ...
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utmp, wtmp and btmp: what is the 'tmp'

From the earlier question: why are utmp, wtmp and btmp called as they are? I would like to now what the 'tmp' part is. Is it 'temp/temporary'. As you can see from the earlier question, that part ...
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why is btmp not showing the username of logged in users?

I am trying to compare the output of the btmp file and who -a commands. I don't know why, but btmp file currently is not showing the username but its showing UNKNOWN in the username field. I am (...