Shulou(Shulou.com)06/03 Report--

There are two ways in which servers are attacked: one is CC, the other is DDOS. If it is the CC attack mode, the computer room technology will adjust the strategy in time according to the type of attack.

Common types of DDoS attacks:

Network layer attack: the typical attack type is UDP reflection attack, such as NTPFlood attack, which mainly uses the attacker's network bandwidth, so that the attacker's business can not respond correctly to customer access.

Transport layer attacks: typical attack types include SYNFlood attacks, connection number attacks, etc. This kind of attack can achieve the purpose of denial of service by consuming the connection pool resources of the server.

Session layer attack: the typical type of attack is SSL connection attack, which takes up the SSL session resources of the server to achieve the purpose of denial of service.

Application layer attack: typical attack types include DNS flood attack, HTTP flood attack, game virtual attack and so on. This kind of attack takes up the application processing resources of the server, consumes the processing performance of the server, and achieves the purpose of denial of service.

There are four CC attacks:

Direct attacks, botnet attacks, proxy attacks and chicken attacks.

1. Direct attacks mainly target Web applications with significant flaws, which are usually rare when the program is written into a problem.

two。 Botnet attacks are somewhat similar to DDOS attacks and are no longer defensible at the Web application level.

3. Proxy attack means that hackers use proxy servers to generate legitimate web page requests to the victim host to achieve DOS and camouflage.

4. Broiler attack generally means that hackers use CC attack software to control a large number of broilers to launch attacks, which is more difficult to prevent than proxy attacks, because broilers can simulate the requests of normal users to visit the website and forge legitimate data packets.

Methods of defending against DDOS and CC network attacks

One of the ways to prevent cyber attacks: rent a high-defense server. The defense capability of high defense server is related to the strength of computer room software, the size of bandwidth, the defense capability of choice and customer service. High defense servers can resist DDOS and cc attacks. If not, it can only be said that the defense capabilities of IDC service providers are insufficient, the defense capabilities chosen by webmasters are insufficient, or the attack capabilities of hackers are too strong. High defense server rental servers are devices that provide computing services for the network and play an important role in corporate websites. Therefore, we must pay attention to the security of the server. However, in order to protect the server, the server will inevitably be attacked by competitors or hackers.

With the development of the Internet, people pay more and more attention to network security, and many enterprises will be more and more inclined to choose high defense servers. First of all, we should come up with a concept, what is a high defense server? High-defense server, as the name implies, is a more defensive server, the specific concept is: independent single hardware defense 10G, 15g, 20g, 25g, 25g, 30g, 30g, 35g, 40g, can provide a security maintenance server for a single customer.

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