Rootkits and backdoors are often the worst type of compromise possible. To protect your server against rootkits, backdoors and other security problems it is recommended to install and use Rkhunter on your Linux VPS. Rkhunter (Rootkit Hunter) is a very useful open source software utility that makes various checks on the local system and scans for known rootkits, local exploits, malware and backdoors. Rkhunter checks to see whether the binary files or system startup files have been modified, and performs various checks on the network interfaces, including checks for listening services and applications. Rkhunter runs on most Linux and UNIX systems. It can be run from the command line, but it can also be scheduled to execute on a daily basis as a cron job.
security tips
Security Tips for Your Server
One of the first things you should do when running a Virtual Private Server (VPS) is to secure your server as much as possible. This way you will protect your server against various security attacks which may harm or even destroy your data.
Here are a few easy tips on how to improve the stability and security of your Virtual Private Server: