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Handover: A mechanism to improve the reliability and availability of network services for clients behind a network address translator

机译:切换:一种提高网络地址转换器背后客户端的网络服务可靠性和可用性的机制

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With the rapid growth of Infrastructure as a Service (laaS), it becomes more important to increase reliability and availability of a service. In our patent, called Connector in the paper, we allow a server to be live migrated to another physical host with a different Internet Protocol (IP) address: meanwhile, all existing clients still can use their original connections to connect to the new server. However, a client sitting behind a network address translator cannot use Connector directly. In this research, we propose a new mechanism, called Handover, to allow a client sitting behind a network address translator to use Connector. We apply a fake three-way handshake to prevent the redirected traffic from being blocked by a network address translator router. Experimental results show that Handover is effective and the overhead of this changeover process is less than 0.2 s. Furthermore, it may be integrated into a Distributed Denial of Service (DDoS) defense system to guard a host against DDoS attacks. (C) 2018 Elsevier Ltd. All rights reserved.
机译:随着基础设施的快速增长作为服务(LAA),提高服务的可靠性和可用性变得更加重要。在我们的专利中,在纸质中称为连接器,我们允许使用不同的服务器迁移到具有不同的Internet协议(IP)地址的另一个物理主机:同时,所有现有客户端仍然可以使用其原始连接连接到新服务器。但是,坐在网络地址转换器后面的客户端不能直接使用连接器。在这项研究中,我们提出了一种被称为切换的新机制,允许客户坐在网络地址转换器后面用连接器。我们应用假三方握手,以防止通过网络地址转换器路由器阻止重定向的流量。实验结果表明,切换是有效的,这种转换过程的开销小于0.2秒。此外,它可以集成到分布式拒绝服务(DDOS)防御系统中,以防范DDOS攻击。 (c)2018年elestvier有限公司保留所有权利。

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