The database is the most sensitive part of an IT organization as it is the chief repository of the company’s most valuable information. Many enterprises are coming to know that database assets are susceptible to both external as well as internal attackers through Web applications and internal employees respectively who take advantage of the absolute privileges. Client records and financial reports are all exposed security breaches. Database firewalls are deployed to ensure database security. Firewalls come with different abilities and features to provide some degree of database protection from various attacks such as- SQL injection attacks. The majority of firewalls can filter traffic based on the packets that pass through a network.
Packet Filtering in Database Firewalls
The main idea behind installing a firewall is to filter traffic. Database firewalls examine packets as they pass over, and the firewall permits or rejects each packet on the basis of standards defined by the administrator.
Database firewall blocks everything that you haven’t particularly permitted. The primary example of a firewall is routers with filtering abilities. Administrators often organize them to permit all outbound links from the internal network and to block all incoming traffic. As a result, an internal user on the network will be able to download email without any difficulty; however an administrator will be required to modify the router configuration to link to your home computer from work via Remote Desktop.
Packet filtering is employed to direct a firewall to drop traffic that meets up definite criterion. For instance, you can generate a filter that will drop each ping request. Filters with more intricate exemptions to a rule can also be configured. For instance, a filter may help with fine-tuning the firewall by permitting the firewall to give the response to ping requests impending from the IP address of a monitoring station.