The concept of "protect the site from DDoS attacks " there was some time after the emergence of the concept DDoS, which comes from the abbreviation "Distributed Denial of Service ", which literally translates as "distributed denial of service". The first mention of the term accounts for 1996, and in 1999, the concept began to wear massive.
DDoS attack, previously used as a means of testing systems for reliability and stability. After a while DDoS attack has been evaluated as a means of attack protection DDoS attacks was the top priority.
DDoS attack - this malicious activity, the overall aim of which is a denial of service. The server stops servicing the client's account, and sometimes all customers at the same time, stops performing its direct function and as a result of DDoS attacks stops to service users. Protection against attacks aimed at denial of service may occur at various levels - at the hardware or software level.
protection DDoS attacks at the site is not a panacea for massive/global DDoS attacks to the website and the server as a whole, because if all the computers of the country or around the globe direct consumption normal/static HTML page posted on the secondary server capacity, it could turn into a complete denial of service and no protection against such attacks will not help here, even protection based on the "Cisco Guard" would be powerless if not promptly and fully close the access to the server!
However, provided we protect the site from DDoS attacks can significantly save money and protect resources of your site in case of an attack of a handful of malicious users! By default, each user will be allowed access to the site no more than once every 6 seconds be 10 requests per minute - a decent enough visitors to this - such a limit is justified for sites built on a CMS using the database. In special cases, DDoS attacks to the website, the policy analysis and blocking the activity of visitors to the site can be raised to a hard level that will significantly reduce the damage from attacks aimed at denial of service.
The mechanism of the PHP AntiDDoS Protection
AntiDDoS protection is built on the programming language PHP and to monitor visitor activity uses a method of storing data in the COOKIE for further analysis AntiDDoS protection and the decision to block or allow the issuance of an entire page to the client. If COOKIE are not available, such as the client himself has forbidden to make COOKIE, or they are blocked by the network monitor in the corporate network, while AntiDDoS protection site uses a method of storing data own SESSION files that regardless of the PHP are stored on a Web server.
When COOKIE prohibited and use SESSION files, the analysis of the actions carried out with reference to the IP address of the client that can create inconvenience to customers of corporate networks or computer clubs that access the Internet through a single IP address.
Once AntiDDoS lock the customer can reset the AntiDDoS to manually remove the COOKIE or change the IP address but anyway for malicious visitor this will create additional difficulties, and for your site to save system resources and reduce the damage caused by these attacks!
In general, AntiDDoS protection nice thought, is not using the shared memory or any other cunning and sophisticated methods, contains a minimum of PHP code and is not particularly affect the overall speed of the site! For successful operation AntiDDoS protection need PHP 4 or later.
protect the site from DDoS attacks is performed transparently to the major search robots, membership of which is checked against the domain and the IP address instead of USER-AGENT from which you can easily rig that will make possible the further implementation of the attacks! All of the major search engine spiders, the list of which is given below, will receive free access to the site, and are not limited to AntiDDOS protection! AntiDDOS defense allowed through to the website search engine bots have come from the following domain:
- googlebot.com
- google.com
- google.ua
- google.com.ua
- google.ru
- yahoo.net
- yandex.ru
- yandex.com
- search.msn.com
- msn.com
- yahoo.net
- altavista.com
- archive.org
- aport.ru
- lycos.com
- mail.ru
- ramtel.ru
- rambler.ru
All the search engine spiders are not included in the above list will receive access to the site but will be limited to set AntiDDoS the limit. The Internet search engine spiders a lot, not to say not to measure but not all are created equal, and therefore the restriction limit for search engines, which were not included in the above list, saves bandwidth and reduces the load on the server!
Check the AntiDDoS protection enabled COOKIE, then turn off/disable the browser receiving COOKIE and check the operation mode SESSION. Check how the protection of the site DDoS attacks You can clicking on this link there clearly see the number of its appeals (attack) and the end result.
We can help protect your site from DDoS attack without interfering with the basic scripts CMS to which the site is built. Protection from DDoS attacks for customers order the production of the site is available in a gift!
The cost of connection and configure the security of the site DDoS attacks of 20$. The price includes technical support and consultation for one year.
