A distributed denial of service is an attack on a web server usually executed by a botnet. The most classic and outdated method is by typing in ping
www.
urbandictionary.com -t -l 65500 in command prompt to send
useless noise to UD's server. In theory, if a large enough botnet did this, it would generate enough noise to clog the bandwidth of the server, denying the webservice offered by said server (preventing
normal users from accessing the webpage). However, modern DDOS protections filter out said noise, so various scripts and programs
will spam the webserver (www.urbandictionary.com) with requests for the html data, achieving the same goal of clogging the bandwidth. A more refined approach is through DNS reflection, in which a DNS server is tricked into using its large bandwidth to send
random data from the service that it offers to the target IP. A bad method used by anonymous is the HOIC or LOIC to attack the server directly, it's a bad choice because each member of the attack must consent to said attack through a fancy graphical interface, so you can't have a botnet do it for you.
A DDOS is highly illegal, so
don't try this at home kids
Person 1: Dude I have a 5k botnet now, I'm to DDOS the school now
Person 2: Cool! What type of
attack are you gonna
use?
Person 1: A DNS reflection
Cop: You'
re under arrest for DDOS
