DDoS attacks and precautions for Web sites

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Recently, a famous community in China has been attacked by hackers, the loss of huge, in the current market environment, not only some well-known websites, and some corporate websites frequently suffer from a variety of intentional or unintentional attacks, the author has been self-study for a period of time network security, now the site attack basic principles and basic precautions to tell you, If there is a Master hope to add.

Web site attack steps

1, site attacks generally refers to DDoS attacks (distributed denial of service attacks), first need to find a tool, bricks. Now more popular DDoS tools have many, such as Zombie, the Wind and the wild, and so on, although the version is different, but the effect is not significant.

(DDoS attack tool one)

(DDoS attack Tool II)

(DDoS attack Tool III)

(DDoS attack Tool IV)

2, found the appropriate DDoS attack tool, the next step is to set the DDoS tool client. First to apply for DNS domain name, usually using the domain name of the Greek network (public and Intranet is different), 192, 127, 10, such as the beginning of the IP network address, the intranet must map the extranet port to be online. Apply to the domain name after you update your current public network IP up, after each reboot of the computer to update once, unless you are static IP.

3, the generation of DDoS Trojan server waiting for broiler online. (Small tip: The broiler is a computer that has been controlled by others)

Broiler can be bought (market price is 1 cents/only/day), can also catch their own chickens, commonly used to catch the chicken method is the Trojan server to make a Web page trojan, and then let others access, or get the permissions of other sites, a call to the Web Trojan code inserted into other sites, so that people landing the site Trojan virus. Remember, Trojans need to do to avoid killing. (Small tip: Kill is not to let anti-virus software to detect viruses, not 10080.html "> free anti-virus means)

Three-stream engine room site 10-100 chickens can be done

The website of second-rate computer room 100-1000 chickens can be handled

The website of the first-class engine room 1000-10000 chickens can be handled

(In the April 21 attack on CNN, a hacker alliance with 60,000 chickens)

How to prevent web site attacks

There is no way to be able to 100% to prevent DDoS attacks, if the attacker attacks the site, then his resources than the site much more than the ability to do so, as long as we understand DDoS, active defense, or can mitigate, resist these attacks.

1, the use of DDoS firewall, the market has proud shield, Golden Shield, Ice Shield.

2, improve the Web site bandwidth and server performance.

3, to see which IP accounted for a number of connections, the IP ban.

If you know what sites to attack you, according to my style, is to poison the fire, people do not make me I do not prisoners, who made me although far will punish!

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