Date Added: Oct 2013
Web applications have become common for organizations as they can allow access to information and operations without geographical and time restrictions. For improved service quality web applications are built in multi-tiered architecture. There are many tiers involved such as client tier, web tier and data tier. The browser comes under client tier. The web server running web resources come under web tier while the database comes under data tier. Most of the existing Intrusion Detection Systems (IDS) are capable of protecting either web server or database server.