How to set SSH login and email reminders in Linux
Today, the editor will share with you the relevant knowledge points about how to set up SSH login and email reminders in Linux. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article.
What is the .bashrc file for?
The .bashrc file is a script that is executed whenever a new terminal session is started interactively.
1) how to enable email alerts for root users
Log in as root and add the following line of script to the root user ".bashrc" file to do this:
[root@localhost ~] # vim / root/.bashrcecho 'ALERT-SSH root shell access found on' $HOSTNAME' on:' `date``who` | mail-s "Alert: SSH root shell access" root@localhost
Execute the following command to make it effective:
[root@localhost ~] # source .bashrc
When you are finished, log in as root. You will receive an email alert similar to the following.
2) how to enable email alerts for specific users
The following script needs to be added to the .bashrc file for the specified user:
[root@localhost ~] # vim / home/bob/.bashrcecho 'ALERT -' $USER' shell access found on'$HOSTNAME' on:' `date``who` | mail-s "Alert: User shell access" root@localhost
The prompt after login is as follows:
3) how to enable email alerts for all users
Enabling email alarms for all users is similar to the configuration above. However, you need to add the following script to the last line of the / etc/bashrc file:
[root@localhost ~] # vim / etc/bashrcecho 'ALERT -' $USER' shell access found on'$HOSTNAME' on:' `date``who` | mail-s "Alert: User shell access" root@localhost is all the contents of this article "how to set SSH login and email reminders in Linux". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.
