9.7. Wrapping Up

This chapter has only scratched the surface of IDS. It is a complicated topic with many tools and techniques available to help detect intrusions and manage your IDS system at a large scale. However, be wary that IDS is not for everyone. Deploying, administering, and monitoring an IDS system can be time consuming and may take you away from other, more important, security-related tasks. If you decide IDS is for you, then the BSD-based operating systems provide an excellent foundation. With their speed and maintainability, FreeBSD and OpenBSD are solid operating systems on which you can support a robust IDS infrastructure.