D DOS attack

D DOS Attack

 

What is D DOS Attack? 

A DDOS (distributed denial-of-service attack) is an attempt at rendering a server unreachable to its visitors. During a DDOS attack your website may become unreachable since the server is being flooded with bogus requests and cannot process the valid ones. Think of this example:

Imagine someone prank calling your phone. It’s like a 500  people prank calling your phone and tying up the phone lines. Then someone that wants to talk to you tries to call. They might get a busy signal or not get through at all. The phone company may have trouble distinguishing between the “real” phone calls and the “prank” phone calls. The objective of the prank phone calls is to simply tie up the phone lines so no one else can get through to you.

            Now, Think of the web server as the phone company that’s handling your phone calls and the DDOS attack is all the prank callers. The legitimate callers are like the “real” visitors to your website. The web server is being flooded with these “prank” calls and therefore cannot process the legitimate “calls”.

Type of DDos attack:-

There are mostly 11 D DOS attack here:-

• UDP FLOOD
• SYN FLOOD
• Nkue
• Zero Day D Dos
• Multi-vector Attacks
• Application Level Attack
• Unintentional D Dos
• Degradation  of service Attack
• Peer-to-peer Attack
• Reflected Attack
• Ping of Death

 Similarities  of D Dos Attack:-

DDOS attacks are not rare happenings; indeed, they are rather commonplace, even expected. Recent victims include:

• Sony and Microsoft: Hackers managed to take both the PlayStation Network (PSN) and Xbox Live offline on Christmas Day. Microsoft recovered after 24 hours, but it took the PSN two full days to come back online. Arrests have been made as of mid-January 2015. (This is not the first time Sony has been successfully attacked with DDoS tactics)
• Columbia, Missouri’s city website as well as that of the radio station KOMU-8 were brought down by a man referring to himself as “Bitcoin Baron,” supposedly in retaliation for a 2010 SWAT raid.
• D DoS attacks on North Korea DNS servers effectively shut down the entire country’s internet access. There is speculation that it was done as an answer back to North Korea’s supposed attack on Sony.

Other victims through the years: the CIA, the NHS, the Arizona State Police, 20th Century Fox, News International, and a variety of others . 

How to Prevent D Dos Attack?

DDoS attacks have become a nightmare for companies with an active online presence. From BBC to Twitter and from Donald Trump’s website to Netflix, 2016 saw some of the most unprecedented cyber attacks in the history of the internet.

In the ever-changing world of high-tech gadgets and rising popularity of Internet of Things, DDoS attacks have increased 2.5 times over the last 3 years, and are believed to become increasingly frequent in the coming years

•  Ensure You Have Extra Bandwidth.  
• Set Up secure VPS Hosting .
• Purchase a dedicated Server. 
• Install patches and updates frequently .
• Use Proxy Protection .
• ect.