Anti-DDoS Software Solutions
Anti-DDoS software runs over existing hardware, analyzing and filtering out malicious traffic. As a rule, Anti-DDoS software is more cost-effective and simpler to manage than hardware-based solutions. However, software and script-based solutions can only offer partial protection from DDoS attacks, are prone to false positives, and will not help mitigate volume-based DDoS attacks. Locally-installed software is more easily overwhelmed than appliances or Cloud-based solutions, which are much more scalable in the face of large attacks.
DDoS attacks attempt to overwhelm the server/firewall by flooding it with a high volume of seemingly legitimate requests. Traditional firewalls are hard-pressed to effectively block DDoS attacks, often themselves becoming the bottleneck for the massive volume of requests, and making the attack worse.
Anti-DDoS Hardware Solutions
Anti-DDoS hardware is a physical layer of protection between potential attackers and your network. Although anti-DDoS hardware can protect from certain types of attacks – other types, like DNS attacks, are not influenced at all by hardware, as the damage is done before traffic even reaches the device.