DDoS attack 0912
                     DDoS Attack
DOSarrest
A DDoS attack is when illegitimate Internet traffic is sent to a network 
or website in an effort to flood a Network’s Infrastructure and/or 
exhaust a server’s resources. The result is that legitimate websites 
visitors requests cannot be fulfilled by the overwhelmed network or 
webserver.
DDoS attacks fall into 1 of 2 categories
• Volumetric attacks
In general, these types of attacks also referred to as “Floods” is when 
DDoS the attacker tries to flood the Internet bandwidth capacity of a website’s Internet connectivity or hosting provider. They usually take 
Attack the form of a UDP flood or TCP SYN attack.
• Sophisticated attacks
These types of attacks are the most difficult to stop and can be tricky 
to stop as they employ techniques that are not easily detected by 
many firewalls. There are many attacks in this category. Many use 
HTTP and HTTPS and can focus on a very CPU intensive part of the 
website and usually do not require large amounts of bandwidth. Some 
of the most common attacks in the category are Slowloris, JSloic, and 
headless browsers such as Phanton JS. The end result is the same, the 
website is down or slowed to a crawl.
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