application layer ddos

Synchronous communication between the driver layer and the Application Layer First, there is a synchronization problem. Create an event through ring3 and pass the event to ring0. Meanwhile, ring3 creates a monitoring thread and waits for ring0 to initiate the event. Events monitored (notifications) Ring0 (Monitoring) ----------------------------------------------

classParent: Save ();Return $ this;}} The settlement code is easy to understand:1. Call the checkout () method of the shopping cart.2. Start the database transaction. In this way, when the order fails to be saved (for example, the inventory quantity is insufficient), the database will be rolled back to ensure that the database content is not affected.3. Add all items in the shopping cart to the order4. Call the SAVE () method of the Order object4.1. traverse all items of the Order to reduce th

Last time an e-commerce client needs to be built as a framework.192.168.1.100/URL1 (request URL)-->node1:10.0.0.4, 10.0.0.5 (server IP)192.168.1.100/URL2 (request URL)-->node2:10.0.0.6, 10.0.0.7 (server IP)A client allocates traffic based on the request URL,/URL1 traffic goes to Node1, and then Node1 the node for a traffic load. Then this scenario can use seven-layer load balancing (application Gateway) + f

Last reprinted a blog has introduced the drive layer to actively send data to the application layer method, one of the methods described below is somewhat different, the last time you created the event object at the application layer, creating MDL (Memory Descriptor) at the

When you design complex functions, you can design multi-level connections. To achieve better user experience and save page space, the pop-up layer method is often used. We use popular jquery design, at the same time we choose more effective boxy pop-up plug-in extension (about the relevant information about boxy, please refer to Zhang xinxu blog http://www.zhangxinxu.com/wordpress? P = 318 ). The following describes the

When developing Android applications, you must use Log to monitor and debug program execution. In the previous article on Android Log system driver Logger source code analysis, we analyzed the source code of the driver Logger. in the previous article, we discussed the use of Log in Android system development, we also briefly introduce how to use Log in applications. In this article, we will introduce in detail the source code of the Log system at the Android

There are many areas worth learning about the application layer switch. Here we mainly introduce the structure and practical application of the application layer switch, and the Exchange Technology is moving towards two directions. One direction is that the speed is getting

An application layer switch is used to unlock each layer of encapsulation of various data packets, and then identify the switch information to understand the structure of the application layer switch. Exchange Technology is moving towards two directions. One direction is tha

Application layer and drive interface, has been a long-standing problem, if not clear, always feel that the driver write plausible. Here's what I understand about them, and how to implement a driver to support multiple devices on the issue. The main two mechanisms involved: Inode and file In drive: (1), we first find a device number DEVNO, can be dynamically applied, can also be set statically, assuming st

Document directory Presentation Layer Business Layer Data Layer Basic services Context You are designingLayered Application. You want to make public some of the core functions of your application as a service that other applications can use, and want your

Android Application Layer Source Code Reading Notes-Application Introduction In this year, have you ever seen the android source code? You must be sure to ask whether you have read the code on the android linux layer. If you have not read the code, you may feel embarrassed to say that you have learned android. I just t