37results about How to "Normal service" patented technology

The invention provides a method and device for defending interest flooding attacks in an information centric network and relates to the field of network security. The method includes: statistically counting the entropy of the names of interest packets received by a router in the information centric network after different moments according to a preset window; using a cumulative sum algorithm to process the obtained entropy to obtain the accumulative values of the entropy at different moments; judging whether the accumulative values are smaller than a preset attack detecting threshold or not, if not, judging that interest flooding attacks are detected, and using a prefix determining algorithm based on relative entropy to search the prefix set of the names of the interest packets so as to obtain attack prefixes; generating data packets containing the attack prefixes according to the attack prefixes, and transmitting the data packets to the access router where an attacker is located according to the router information of the interest packets, containing the attack prefixes, recorded in the pending interest table of the router so as to allow the access router to perform corresponding access limitation on the received interest packets according to the attack prefixes in the data packets.

The present invention provides an electronic whiteboard data sharing system based on subscription information publishing. By data communication connection between each data sharing device in the system, the electronic content data synchronization of the subscription publishing mechanism is performed between different data sharing devices. At the same time, distributed backup and storage of electronic whiteboard content data is also performed on different data sharing devices. Once the data sharing device as the information publisher has abnormal operation status, each corresponding information subscriber will start the corresponding subscription topic. The allocation and scheduling mechanism of information publishers and information subscribers in the type, the other information subscribers of the corresponding subscription topic type with normal operation status determine the new proxy information publisher according to the principle of the highest subscription priority, and execute the corresponding subscription topic on their behalf The type of electronic whiteboard content data release task reduces the probability of interruption of electronic whiteboard data sharing services, and improves the fluency and stability of information sharing services provided by the system.

The present invention relates to a method for acquiring terminal context, a method for position management, a system, and a network element. The method for acquiring terminal context includes: a new gateway GPRS support node (GGSN) sends a message to the original GGSN to request context information of a mobile terminal , which carries the identifier of the terminal; the old GGSN provides context information of the terminal to the new GGSN, and the context information includes the PDP context of the terminal. The invention solves the problem that the new GGSN cannot serve normally, and at the same time solves the problem of the circuitous path through the triggering of the new SGSN.

The method is applicable to general packet radio service (GPRS) system. The method includes steps: (1) source GB process unit of initiating adjustment of subzone sends request for state query to other GB of sharing burthen in serving GPRS support node SGSN; (2) receiving the said request, other GB returns own information of state to the source GB process unit; (3) based on information of state, the source GB process unit adjusts subzone to other GB process unit of sharing burthen. When GB process unit in 'hotspot area' occurs in network, the invention can adjust subzone in hotspot area to other GB process unit. Advantages are: in favor of using network resources reasonably, and raising flexibility for system to treat user access.

The present invention provides a multi-machine file storage system and method, the system mainly includes a plurality of server nodes, each server node is connected by high-speed Ethernet, communicates through high-speed Ethernet, and each server node performs file storage in sections save and read. The method mainly includes: reading a corresponding data block from a file to be saved, and storing the read data block in segments in each server node in the multi-machine file storage system. With the invention, a low-cost, high-availability and high-performance multi-machine file storage scheme can be realized.

The invention provides a database switching method and a database switching system. The method comprises the steps that a compatible switch of each server is started to start a compatible logic module of the corresponding server, the compatible logic modules execute compatible processing of service compatibility of a main database and a spare database, a data source building logic module makes the main database be built into a main data source and makes the spare database be built into a spare data source on the basis of the switched-off states of data source switches; the data source switch of each server is switched on, so that each server is connected with the spare database rather than being connected with the main database, the compatible logic modules continue to execute compatible processing, and the data source building logic module makes the main database be built into the spare data source and makes the spare database be built into the main data source on the basis of the switched-on states of the data source switches; the compatible switch of each server is switched off after preset time.

The embodiment of the present invention discloses a block chain node deployment method and related equipment. The method includes: obtaining a node deployment image file, which includes a communication security agent script, a node underlying script, and a node service script; running a communication The security proxy script establishes a secure connection with the node management device, and receives the node configuration file through the established secure connection; runs the underlying node script to obtain the node information of all nodes in the target blockchain from the node configuration file, and converts all nodes in the target blockchain The node information of the node is determined as the node information of the belonging blockchain; according to the node information of the belonging blockchain, run the node synchronization script, obtain the node status synchronization information from any node of the target blockchain, and update the first node status according to the node status synchronization information. The node status of a device; run the node service script and respond to the received user's blockchain service request. The deployment efficiency of blockchain nodes can be improved through the present invention.

The present invention provides a system for managing large-scale container applications. The large-scale container includes at least one container group, and at least one container group forms a node; Operation request; the management module monitors the operation request through the interface module, and if the large-scale container includes the target container group, it sends an operation request to the target node where the target container group is located through the interface module; the target node manages the target container group to perform corresponding operations; the request node The operation execution status of the target container group in the target node is monitored through the interface module. The present invention realizes the management of large-scale containers in a cluster mode, and distributes large-scale access pressure to container groups in different destination nodes on demand through the master control node, so that each container in each container group has high availability rate, and can start a corresponding number of container groups according to demand.

The embodiment of the present invention provides a controller cluster fault handling method, device, controller and controller cluster, the controller cluster includes: a first controller and 2N+1 second controllers; nodes of the first controller The attribute is a learner, which prohibits the controller from participating in the election and voting of the main controller; the node attribute of the second controller is a voter, allowing the controller to participate in the election and voting of the main controller. The first controller detects whether each second controller fails; if the first controller detects that N+1 second controllers fail, the node attribute of the first controller itself is changed to be a voter. In the case that N+1 second controllers fail, the first controller changes its own node attributes to electors. At this time, there are N+1 controllers whose node attributes are electors, more than half, In the case of a controller failure, the purpose of the controller cluster to provide services normally is achieved.