Anti-DDoS (Distributed Denial of Service)

In computing, a Denial-of-Service attack (DoS attack) or Distributed Denial-of-Service attack (DDoS attack) is an attempt to make a machine or network resource unavailable to its intended users (Wikipedia).

 

The real world equivalent would be getting a crowd of so many non-customers in front of a shop, that customers cannot even get to the shop's front door, preventing the shop from doing any business.

 

Unlike many Web Application Firewall systems on the market, the Network Box Anti-DDoS WAF+ system, as its name suggests, has also been specifically enhanced with a wide range of capabilities to allow for the mitigation of Distributed Denial of Service attacks.

 

General overview of a typical DDoS attack

 

One of the key design goals of the Network Box Anti-DDoS WAF+ system has been to allow companies and organizations to implement effective Anti-DDoS technology on an affordable basis. Layer 3 (network) protocol enforcement, including connection rate, data transfer volume and connection slowness can be handled; and a wide range of Layer 7 (application) properties, including URL pattern, user agent and request header are taken into account.

 

The Anti-DDoS WAF+ uses behavioural analysis, traffic signatures, rate limiting, and other such techniques to identify malicious traffic per source-address. Once we've identified a source of malicious traffic we blacklist it.

 

The Network Box networking stack consists of many layers of protection, from physical layer 1 all the way up to application protection at layer 7. Whitelists and blacklists of IP addresses are maintained very low down in this stack, and source traffic from addresses in the blacklists (but not in the whitelists) are blocked with the highest performance. Once an attack source has been identified, it is added to the blacklist, and further traffic from that source is either blocked for a certain time (the dynamic blacklists) or indefinitely (the permanent blacklists).

 

Some of the mitigation methods used by the Anti-DDoS WAF+

 

In addition to this, only legitimate connections from verified non-spoofed source addresses are permitted to continue to the protected servers, and in this way the vast majority of such attacks can be mitigated (so long as the incoming bandwidth is sufficient to handle the attack).

 

During a DDoS attack, the attackers are mitigated using a variety of techniques

whilst legitimate users are allowed normal access.



江苏老快3遗漏 p3开机号 abl澳洲棒球比分 梦幻 95级怎么赚钱 比分网即时比分斯诺克 网络写短篇怎么赚钱 球探比分即时足球比分下载 甘肃快3 现在dnf怎么用附魔师赚钱 河南11选5 卖手工速冻水饺赚钱吗 今日头条极速版走路赚钱是真的 辽宁快乐12 倩女幽魂挖图赚钱 竞彩比分网竞彩比分网 棒球比分直播美式足球 18选7