When I first started playing around with OSSEC I downloaded the agent and server source packages then proceeded to install them by hand. This method was fine when I had a server and 1 or 2 agent systems, but for a large network of systems it is tedious and error prone.
The OSSEC Project offers RPM packages that can be installed with yum on RedHat derived Linux distributions. Using these packages and the ossec-authd system, you can script the installation of OSSEC and automatically register agents with the server.
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