What is the importance of a well-designed DMZ?
In order for a company to have a secure network they must have a well-designed DMZ. A well-designed DMZ separates sensitive information found on the internal corporate environment from the outside world. Using a security approach that includes Routers, Firewalls, Mail servers, DNS servers and Intrusion Detection Systems to buffer and filter Internet traffic you can keep unwanted traffic out, allowing business to continue operating smoothly. A well designed DMZ prevents people outside your network from being able to probe your network, internal DNS servers, mail servers and other mission critical systems by first blocking unwanted traffic, then by proxying traffic internally through the DMZ and finally by detecting any unwanted traffic.