OSSEC is a server monitor and protection script made for LInux servers.

Download here:

ossec-hids-2.8.2.tar

Here is how to install:

wget -U ossec http://www.ossec.net/files/ossec-hids-2.8.2.tar.gz

tar -zxf ossec-hids-2.8.2.tar.gz

Now you should have a directory named ossec-hids-2.8.2. To start installation, you have to change (cd) into that directory:

cd ossec-hids-2.8.2

The only file of interest to us in that listing is install.sh. That’s the OSSEC installation script. To start installation, type:

./install.sh