Some explanation for denial of service
You want to know what a DoS attack is.
Simply said a denial of service attack is meant to cause a computer in a network to crash or become so busy processing data that it is useable.
Examples for overloading are Syn-flooding or Smurf-attacks.
Examples for crashing are WinNuke or PingOfDeath.
About the Author
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.