The netizens who couldn't watch LeEco's video two days ago should not be surprised because LeTV's video was attacked by DDOS and it was still up to 200G attack. This high-frequency, high-traffic attack is bound to be a premeditated malicious attack, and the DDOS attack is a kind of attack means "one enemy hurts oneself and self-defeat eight hundred". The financial test for the attacker is also huge. The attack continued for about one day and LeTV had already reported the case to the public security agency. In this regard, LeTV also issued an official statement, saying: "Innovation will inevitably lead to pain, but users are innocent; innovation will eventually usher in the sun, and malicious will only match the shape of the dawn." Let's see this as meaning, DDOS attacks seem to be intentional. Like self-media, portal-type websites, and video sites, it is easy to be blacked out and attacked by DDos. There are two reasons for this: One is for competition and the other is for interests. Most of the websites that are attacked are peer competitions or are initiated by the other party for personal interests. The attack on LeTV video this time does not rule out this reason. From this incident, it can also be seen that the website must be prepared to prevent DDOS at any time. Currently, there are two main types of DDoS attacks: bandwidth exhaustion attacks and resource exhaustion attacks. In order to effectively contain these two types of attacks, you can do some necessary work. Determine the source of the attack; Monitor incoming network traffic; Optimize resource use to increase the load capacity of the web server; Use highly scalable DNS devices; Enable anti-IP spoofing on the router or firewall; Obey the opinions of experts. DDOS attack is also called distributed denial of service attack. Attackers use client/server technology to combine multiple computers as an attack platform to launch DDoS attacks on one or more targets, thereby multiplying the power of denial of service attacks. The most basic DDOS attack is to use a reasonable service request to occupy too many service resources, so that legitimate users can not get the response of the service. Because DDOS attacks occupy a large amount of network resources through a large number of legitimate requests to reach the network, so the source is more difficult to find, and it has become one of the common ways for many competitors to compete against the network. We adopt the advanced technology imported from Europe, patented technology, specialized software to optimize the design for 11kV cast resin Dry Type Transformer. The core is made of cold-rolled grain-oriented silicon steel sheet which cut in step-lap by GEORG Germany TBA core cutting lines and laminated by the method of fifth-order step-by-step stacking technology, enabling the no-load performance of the core to improve greatly. The epoxy resin from American HUNTSMAN is adopted for the windings which casted in the vacuum resin casting machine imported from HEDRICH, Germany. The winding material ensures good permeability, no bubbles occur, which leads to minimum partial discharge. The HV and LV winding mate with each other tightly, which ensures solid strength of structure and capability to withstand short circuit and vibration. Under normal service condition, the service life of dry type transformer is 30 years. No crack will form on the surface of transformer winding due to temperature variation as long as the transformer runs under normal service condition. 11Kv Transformer,11Kv Dry Type Transformer,11Kv Cast-Resin Transformer,2500Kva Dry-Type Transformer Hangzhou Qiantang River Electric Group Co., Ltd.(QRE) , https://www.qretransformer.com
