The distributed denial of service attack is a known concept in the age on Ethernet or Internet. While a website serves different functions to a web master, inaccessibility of certain website is a hindrance enough to deter work and result into losses in an enterprise. It makes certain computer resources unavailable to the users. There is varied liaison to carry out the motive of a DDoS attack, but the work is commenced by the concentrated effort of a group of person and an individual with a shrewd technical mind. This is done majorly by saturating a machine with communication requests from external sources. Thus the DDoS attack forces the computer user to reset the settings so that he can access a website of its type.
Certain symptoms of the DDoS attacks:
- Network speed or performance gets slow
- Certain websites are unavailable
- Certain websites are available yet cannot be freely accessed
- The popping of spam mails increases by leaps and bounds
Thus when such symptoms occur, certain problems in network branches start popping in although the main computer is victimized the most. The DDoS attack mainly fall between LAN and the router’s bandwidth, thus that anonymous DDoS attacks now spread not only to the main machine but in the other surrounding machines of the same network. Once the anonymous DDoS attacks imposed strengthens so much, it poses a threat on the entire geographical location and scope of the Internet connectivity. Thus, if the network infrastructure is flimsy and incongruent than a major area becomes affected even without the intent and knowledge of the attacker.
Different methods of the attack
The DDoS attack or anonymous DDoS attack can bar two major resources; it can either flood services with unrestricted traffic or can crash services as well. However, the basic types of DDoS attack are characterized in this way:
- The processor time, bandwidth and disc space is consumed by the computational resources or the attackers
- The Configuration information gets disfigured.
- State information like TCP sessions get disfigured
- Components of the physical network get disrupted
- The communication media occurring between the victim and the intended user is obstructed to bar the normal flow of communication
Prevention of anonymous DDoS attack
When DDoS attacks can pose threat prevention mechanism to stop DDoS attack is also possible. To stop DDoS attack, several mechanisms that can be followed that are listed below. No hardware is required for this purpose.
Firewalls can levy and provide DDoS attack protection to certain extent. To stop the DDoS attack firewalls and packet filters can be readily used. However to stop DDoS attacks at a heavy flow, firewalls are incongruent they are in able to filter the good traffic from the bad, routers also get affected as the firewalls are too deeply injected to the network hierarchy.
To provide effective DDoS protection against the anonymous DDoS attack, one has to take the aid of switches, routers or IPs based prevention, advanced mode traffic analistor or distill engine of HTTP etc. They work effectively to stop the DDoS attack. Through this mechanism of protection, web applications, streaming audio and video, game servers get protected too.