This guide is to improve the security of the server, which is exposed to the Internet and possible to get hacked worldwide, it’s best to enable server to automatically send a notification email to predefined email address every time someone logs in as root to the host. To configure the automatic email alert notification to a default email address on each incident of root log on on the server, use the following guide.
- Login to the server via SSH using as root ID.
- Ensure that you’re at home directory of root. The open up the .bash_profile for editing using vi by typing one of the following commands at command shell line:vi .bash_profile
- Scroll down to the end of the file and add the following line:
echo 'ALERT - Root Shell Access on:' `date` `who` | mail -s "Alert: Root...