how to prevent denial of service attack
Preventing Denial of Service Attacks. With dotDefender web application firewall you can avoid DoS attacks because dotDefender inspects your HTTP traffic and checks their packets against rules such as to allow or deny protocols, ports, or IP addresses to stop web applications from being exploited. Financial losses: Sites that are attacked are prevented from doing business online. 2  The result is often a loss in sales revenue or advertising revenue. 3  Other attacks: Information gathered from a successful Denial of Service attack can be used later to further attack a web site.