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This article will explain in detail how to set up the user login email reminder function in Linux. The content of the article is of high quality, so the editor shares it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Methods / steps

First of all, we are configured to send e-mail environment, if not configured, we need to configure it.

Https://www.yisu.com/LINUXjishu/266753.html

This is the related article I wrote in the previous articles, you can refer to it.

We all know that Linux users will execute the / etc/profile file when they log in, and we add content through this file.

The email should contain a piece of relevant information about the lander, such as the user, and the IP of the login.

Users who log in can quickly look it up with the command.

Whoami

The login IP can be queried through the ssh log or in the results of the who command. If the result of a who query is multiple lines, it represents multiple users. It is necessary to determine which user has just logged in according to its login time. This can be handled by myself. I use the log function to find it in the log.

Ssh's log is on / var/log/secure.

Finally, write the relevant information and the command to send email to the file / etc/profile, as follows

In this way, you can receive an email reminder to log in every time you log in, and if you don't log in yourself, you can find the anomaly in time. The specific format can be adjusted according to their own actual situation, the above is only a temporary model for individuals, only for your reference.

Note: specific variables or methods can be modified according to their own situation.

On how to set up the Linux user login email reminder function to share here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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