How to use the last command: 2-Minute Linux Tip

The video tutorial explains the 'last' command, which displays recent login information in reverse order. It covers how to view logins for specific users and discusses the details stored in the VAR log W temp file, such as usernames, dates, times, terminals, and IP addresses. The tutorial also explores login patterns, including dynamic IP addresses, and how long users spend on the system. Additionally, it explains the rotation of W temp files based on size or age, with settings found in the Etsy log. Rotate dot DW temp file.

What does the 'last' command primarily display?

• Current active users

• All system errors

• Recent logins in reverse order

• Recent logins in chronological order

What type of information is NOT stored in the Wtmp file?

• System errors

• Login times

• IP addresses

• Usernames

How can you view login details for a specific user using the 'last' command?

• By supplying the username as an argument

• By using the '-u' option

• By editing the Wtmp file directly

• By using the '-a' option

What might cause different IP addresses to appear for the same user?

• The system has a dynamically assigned IP address

• The user changes their IP address manually

• The user logs in from different devices

• The system is experiencing a network error

What determines when a Wtmp file is rotated?

• The system's uptime

• The file size or age

• The number of users logged in

• The number of login attempts