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    • 2. 发明授权
    • Preventing attacks in a data processing system
    • 防止数据处理系统中的攻击
    • US07555777B2
    • 2009-06-30
    • US10756744
    • 2004-01-13
    • Morton D. SwimmerAndreas WespiDiego M. Zamboni
    • Morton D. SwimmerAndreas WespiDiego M. Zamboni
    • G06F11/30
    • H04L63/1408G06F21/552G06F21/563
    • A method and apparatus for facilitating reduction in successful attacks on a monitored data processing system, such as a host computer. An intrusion detection system comprises a host or application based sensor for detecting code based intrusions with a relatively low false-positive rate. Malicious code strings related to a detected intrusion are identified, extracted and forwarded to a pattern filter located in the monitored data processing system to prevent further intrusions using said malicious code strings. The malicious code strings may be forwarded to a response server for assembling sets of similar malicious code strings for which signatures are generated to permit identification of all malicious code strings contained in a set. The generated signatures are then distributed to monitored and/or monitoring systems of a protected network to prevent further intrusions using the malicious code strings and variations thereof.
    • 一种用于有助于减少对诸如主计算机之类的监控数据处理系统的成功攻击的方法和装置。 入侵检测系统包括基于主机或应用的传感器,用于以相对低的假阳性率检测基于代码的入侵。 与检测到的入侵相关的恶意代码串被识别,提取并转发到位于监视数据处理系统中的模式过滤器,以防止使用所述恶意代码串进一步入侵。 可以将恶意代码串转发到响应服务器,以组合用于生成签名的类似恶意代码串的集合,以允许识别包含在一组中的所有恶意代码串。 生成的签名然后被分发到受保护网络的监视和/或监视系统,以防止使用恶意代码串及其变体的进一步入侵。
    • 3. 发明授权
    • Methods for operating virtual networks, data network system, computer program and computer program product
    • 操作虚拟网络,数据网络系统,计算机程序和计算机程序产品的方法
    • US07908350B2
    • 2011-03-15
    • US12097349
    • 2006-12-12
    • Yann DuponchelJames F. RiordanRuediger RissmannDiego M. Zamboni
    • Yann DuponchelJames F. RiordanRuediger RissmannDiego M. Zamboni
    • G06F15/173G06F15/177
    • H04L12/4641
    • The invention relates to a method for operating virtual networks. The method comprises providing a first virtual network comprising a first set of network ports assigned to a first virtualization tag (T1) and a second virtual network comprising a second set of network ports assigned to a second virtualization tag (T2), the first and the second virtual network having compatible address ranges and being adapted to only pass data packets within them, providing a first network node having a source address (SA) in the first virtual network and being operationally connected to a first port (P1) assigned to the first virtual network by means of the first virtualization tag (T1), monitoring the first network node in order to detect a predetermined condition, and, on detection of the predetermined condition, reassigning the first port (P1) to the second virtual network by means of assigning the second virtualization tag (T2) to the first port (P1), such that no data packet can be passed from the first network node (N1) to a second network node (N2) connected to a second port (P2) assigned to the first virtual network by means of the first virtualization tag (T1) directly and keeping of the source address (SA) for the first network node (N1) in the second virtual network (104). The invention further relates to a further method for operation virtual networks, a data network system and a computer program product adapted to perform the inventive methods.
    • 本发明涉及一种运行虚拟网络的方法。 该方法包括提供包括分配给第一虚拟化标签(T1)的第一组网络端口和包括分配给第二虚拟化标签(T2)的第二组网络端口的第二虚拟网络的第一虚拟网络,所述第一和第 第二虚拟网络具有兼容的地址范围并且适于仅传递其中的数据分组,提供在第一虚拟网络中具有源地址(SA)的第一网络节点并且可操作地连接到分配给第一虚拟网络的第一端口(P1) 虚拟网络通过第一虚拟化标签(T1)进行监视,监视第一网络节点以便检测预定条件,并且在检测到预定条件时,通过以下方式将第一端口(P1)重新分配给第二虚拟网络: 将第二虚拟化标签(T2)分配给第一端口(P1),使得没有数据分组可以从第一网络节点(N1)传递到连接的第二网络节点(N2) 通过第一虚拟化标签(T1)直接分配给第一虚拟网络的第二端口(P2),并保持第二虚拟网络(104)中的第一网络节点(N1)的源地址(SA)。 本发明还涉及用于操作虚拟网络的另一方法,数据网络系统和适于执行本发明方法的计算机程序产品。
    • 10. 发明申请
    • Methods for Operating Virtual Networks, Data Network System, Computer Program and Computer Program Product
    • 操作虚拟网络,数据网络系统,计算机程序和计算机程序产品的方法
    • US20090006603A1
    • 2009-01-01
    • US12097349
    • 2006-12-12
    • Yann DuponchelJames F. RiordanRuediger RissmannDiego M. Zamboni
    • Yann DuponchelJames F. RiordanRuediger RissmannDiego M. Zamboni
    • G06F15/173
    • H04L12/4641
    • The invention relates to a method for operating virtual networks. The method comprises providing a first virtual network (103) comprising a first set (101) of network ports assigned to a first virtualization tag (T1) and a second virtual network (104) comprising a second set (105) of network ports assigned to a second virtualization tag (T2), the first and the second virtual network (103, 104) having compatible address ranges and being adapted to only pass data packets within them, providing a first network node (N1) having a source address (SA) in the first virtual network (103) and being operationally connected to a first port (P1) assigned to the first virtual network (103) by means of the first virtualization tag (T1), monitoring the first network node (N1) in order to detect a predetermined condition, and, on detection of the predetermined condition, reassigning the first port (P1) to the second virtual network (104) by means of assigning the second virtualization tag (T2) to the first port (P1), such that no data packet can be passed from the first network node (N1) to a second network node (N2) connected to a second port (P2) assigned to the first virtual network (103) by means of the first virtualization tag (T1) directly and keeping of the source address (SA) for the first network node (N1) in the second virtual network (104). The invention further relates to a further method for operation virtual networks, a data network system, a computer program and a computer program product adapted to perform the inventive methods.
    • 本发明涉及一种运行虚拟网络的方法。 该方法包括提供包括分配给第一虚拟化标签(T1)的第一组(101)网络端口和第二虚拟网络(104)的第一虚拟网络(103),所述第二虚拟网络(104)包括分配给 第二虚拟化标签(T2),所述第一和第二虚拟网络(103,104)具有兼容的地址范围,并且仅适于在其中传递数据分组,提供具有源地址(SA)的第一网络节点(N1) 在第一虚拟网络(103)中并且通过第一虚拟化标签(T1)可操作地连接到分配给第一虚拟网络(103)的第一端口(P1),监视第一网络节点(N1),以便 检测预定条件,并且在检测到预定条件时,通过将第二虚拟化标签(T2)分配给第一端口(P1)将第一端口(P1)重新分配给第二虚拟网络(104),使得 没有数据包可以从f传递 第一网络节点(N1)通过第一虚拟化标签(T1)直接连接到分配给第一虚拟网络(103)的第二端口(P2)的第二网络节点(N2),并保持源地址 )用于第二虚拟网络(104)中的第一网络节点(N1)。 本发明还涉及用于操作虚拟网络的另一方法,数据网络系统,计算机程序和适于执行本发明方法的计算机程序产品。