TECHNIQUES FOR DATA ASSIGNMENT FROM AN EXTERNAL DISTRIBUTED FILE SYSTEM TO A DATABASE MANAGEMENT SYSTEM
    7.
    发明申请
    TECHNIQUES FOR DATA ASSIGNMENT FROM AN EXTERNAL DISTRIBUTED FILE SYSTEM TO A DATABASE MANAGEMENT SYSTEM 有权
    从外部分布式文件系统到数据库管理系统的数据分配技术

    公开(公告)号:US20130173666A1

    公开(公告)日:2013-07-04

    申请号:US13340335

    申请日:2011-12-29

    IPC分类号: G06F17/30

    摘要: Techniques for data assignment from an external distributed file system (DFS) to a database management system (DBMS) are provided. Data blocks from the DFS are represented as first nodes and access module processors of the DBMS are represented as second nodes. A graph is produced with the first and second nodes. Assignments are made for the first nodes to the second nodes based on evaluation of the graph to integrate the DFS with the DBMS.

    摘要翻译: 提供了从外部分布式文件系统(DFS)到数据库管理系统(DBMS)的数据分配技术。 来自DFS的数据块被表示为第一节点,并且DBMS的访问模块处理器被表示为第二节点。 使用第一和第二节点生成图形。 基于图的评估将第一个节点分配给第二个节点,以将DFS与DBMS集成。

    Method for preventing transmission control protocol synchronous package flood attack
    9.
    发明授权
    Method for preventing transmission control protocol synchronous package flood attack 有权
    防止传输控制协议同步包洪泛攻击的方法

    公开(公告)号:US07363652B2

    公开(公告)日:2008-04-22

    申请号:US10613159

    申请日:2003-07-03

    IPC分类号: G06F17/30 G06F17/00

    CPC分类号: H04L63/02 H04L63/145

    摘要: The invention relates to a method for preventing TCP SYN package flood attack, and belongs to the computer network security field. First, the firewall receives a client a TCP SYN connection request package, and responses, as an agent of the server, an acknowledgement of the TCP SYN connection request package with zero window size to the client. Then, the firewall records information about the TCP SYN connection request package and checks whether the connection request is legal. When the firewall has received a TCP SYN response package from the server, it returns an acknowledgement of said TCP SYN response package. At the same time, the firewall, as an agent of the server, sends an acknowledgement packet with nonzero window size to the client for initiating data transmission from the client. After that, data packets are transferred between the client and the server forwarded by the firewall as an agent. With the invention method, it can guarantee that protected servers in a computer network will not be destroyed by TCP SYN package flood attack.

    摘要翻译: 本发明涉及一种防止TCP SYN包洪泛攻击的方法,属于计算机网络安全领域。 首先,防火墙接收客户端TCP SYN连接请求包,响应作为服务器的代理,确认客户端具有零窗口大小的TCP SYN连接请求包。 然后,防火墙记录有关TCP SYN连接请求包的信息,并检查连接请求是否合法。 当防火墙从服务器接收到TCP SYN响应包时,它返回所述TCP SYN响应包的确认。 同时,防火墙作为服务器的代理,向客户端发送具有非零窗口大小的确认数据包,以从客户端发起数据传输。 之后,数据包在客户端和作为代理的防火墙转发的服务器之间传输。 利用本发明的方法,可以保证计算机网络中受保护的服务器不会被TCP SYN包洪泛攻击所破坏。

    Faucet filter
    10.
    外观设计

    公开(公告)号:USD873377S1

    公开(公告)日:2020-01-21

    申请号:US29645647

    申请日:2018-04-27

    申请人: Yan Qi

    设计人: Yan Qi