New Methods for Detection of DoS and DDoS Attacks - E-book - ePub

The  Internet  revolution  has  completely  changed  the  traditional ways   of   functioning   of   essential   applications   including   banking, healthcare,  defense,  academic,  and  logistics.  Internet-based  services replaced  these  traditional  services  at  a  rapid  pace  over  the  past  two decades.  Growth   in  internet-dependency  of  individuals   and  entities resulted that the internet is the fundamental support for the informationworld.
The   emergence   of   new   Internet-based   services   such   as   e- governance,    e-procurement,    and    other    services    are    contributing significantly  to  the  global,  social  and  economic  development.  With  the exponential growth in Internet-based services and users worldwide, the internet  infrastructure  and  services  are  facing  numerous  challenges related to continuous attacks.
Distributed  Denial  of  Service  (DDoS)  is  one  of  the  most  observed attacks over internet architecture, posturing robust challenges to defensemechanisms   incorporated   in   the   framework. As   the   DDoS   attackinformation  is  not  made  public  by  companies  (to  avoid  deterioration  of brand   value),   researchers   often   face   the   problem   of   the   limited information  available  to  design  effective  defensive  strategies  against DDoS attacks. The  current  section  presents  the  impact  of  DDoS  attack  and  the inherent  vulnerability  of  the  internet  architecture.
 Real  events  of  DDoS attack  together  with  their  financial  impact  on  companies  are  included. Further,  the  need  for  designing  an  efficient  DDoS  defense  strategy  is presented in the research work. The  internet  resources  and  network  systems  should  be  readily accessible for genuine users who aim to use the services at any specific time  .  Unavailability  of  internet  services  and  applications  at  the required instance is one of the major challenges restricting the spread of Internet-based   services.
  The   unavailability   can   results   to   either intentional causes or accidental causes. The basic internet framework is designed   to   handle   accidental   failures   but   is   not   efficient   against intentional purposes such as intrusion, malware, hacking, etc. The Denial-of-Service (DoS) attack is categorized under intentional failures   observed   on   the   internet,   which   are   caused   by   malware programmers  or  intruders.
 These  attackers  deny  or  compromise  the availability  of  internet  resources  to  genuine  or  authorized  users.