Remove Login History on Server

On the Linux systems there are three standard commands that show the information about last logged in userslastlastb, and lastlog.

The output of these commands include: login-name, last login time, IP address, port etc.

And sometimes, to keep anonymity, it is required to erase last login history.

To check the last login history, including the history of login attempts that failed, run one of the commands from the table below.

Command Logfile Description
last /var/log/wtmp Lists successful login/logout history
lastb /var/log/btmp Shows the bad login attempts
lastlog /var/log/lastlog Shows the most recent logi

You already how to check the last login history in Linux, so now it is time to learn how to clear it.

Clearing the Logs

As you can see from the table, the information about the last logged in users, including failed attempts to login, is stored in the specific binary files that you can’t edit but can easily empty them.

To remove all the information about the last logged in users, you have to clear the files where this information is kept:

# echo > /var/log/wtmp
# echo > /var/log/btmp
# echo > /var/log/lastlog

Now, you have removed all information about most recently logged users.

  • clear logs, privacy
  • 4 Users Found This Useful
Was this answer helpful?

Related Articles

 Enable Browser Caching with .htaccess File

Enable browser caching to reduce website loading times, by taking advantage of caching of...

 Recursive Find and Replace Command Line Method

Reference this guide for help with mass find and replace file manipulation in Linux servers.Find...

 How to Bind Additional IPs to Network Interface Card - CentOS

This article explains the process of binding multiple IP addresses to the Network Interface Card...

 How to Change Root Password Using SSH

This article explains the method of changing the root password on a Linux Server using SSH. SSH...

 Disable Network Manager on CentOS 6

This article will provide the steps to disable Network Manager in CentOS 6. Network Manager is...