How should we defend against this attack? First of all, as users, we try our best to download APP from regular channels and surf the Internet in a civilized manner, and try our best not to make broilers. Secondly, as a service manufacturer, when the server is attacked by DDoS, we try our best to improve the processing capacity of the server. When the processing capacity of our server is greater than that of the attacker, these attacks are nothing to the server. Finally, under normal circumstances, the processing capacity of our server is generally lower than that of the attacker. In view of this situation, there are currently the following methods: 1. Violent methods, such as setting an access frequency threshold, and rejecting when the number of accesses per IP unit time exceeds this threshold; For a certain service, if the instantaneous request is too large, choose to directly refuse to ensure the normal operation of other services; This method may result in normal users not being able to use it. 2. Verification code. In order to prevent normal users from being injured by exposure methods, at present, service providers will send verification codes to "users" when receiving a large number of requests. If it is a real user, it will input verification codes, but if it is a broiler, it will not. Through this method, the real user and the broiler will be distinguished.陈平今日并未来中军大帐，一方面是陈平算不算项羽的核心心腹。Rui Yi interviewed some parents who chose to cultivate their children's thinking ability. One of the parents said, "In fact, our parents don't want to bring academic pressure to their children too early, However, I am afraid that there is no foundation. The gap between children and their classmates will gradually widen after school. With so many children in a class, teachers cannot take care of a certain child alone. We teach ourselves. First, we don't know how to teach and what to teach. Second, we don't have so much time. "Stephen was hiding in the corner, Looking at the spring scenery here, His obsessed man was straddling the other himself, He said some blunt words without hesitation. Looking at the "magician" red face still quite proud, dragging the person's collar paste up, as if to show off his kissing skills, Stephen looked at Tony under the "oneself" soft into a pool of spring water, eyes are full of "oneself" and lust, open arms at "oneself"-that is the posture of demanding, Tony's red and purple crisscrossed marks, marking the intensity of the sex, also let Stephen feel confused3.2The park makes full use of flowers and plants, trees, water bodies, architectural sketches, terrain treatment and other garden construction elements, and adopts the gardening method of combining natural style and planning style, overlapping mountains and managing water, integrating the characteristics of the times and traditional connotation, and creating a garden landscape with elegant and unique style. In particular, plant landscaping is used. Erythrina, a symbol of Quanzhou, a famous historical and cultural city, is used as the backbone tree species in the park, supplemented by banyan, mango, basin frame wood and other tree species. Arbor, shrub, flowers and plants are integrated into a whole to achieve the artistic effect of plant landscaping through rich spatial levels and colors. In spring, the Erythrina flower, which is shimmering like a cloud, blooms with a warm and fiery smile. It is very beautiful and makes people forget to return.Public class MyCommand implementations Command {
