A Method of Protecting Against Flood Attacks in Desktop Virtualization

Abstract

The invention discloses a method for preventing flood attacks in desktop virtualization. The method comprises the steps that a system configures a cluster safety strategy and a strategy for preventing or stopping initiation of the flood attacks; when network data packets enter a server, a system fire wall analyzes the network data packets and judges whether the data packets are input or forwarded; filtering is carried out again through an Ethernet fire wall Ebtables; if virtual machines are adopted as receiving ends of the network data packets, the data packets are filtered by netfilters of the virtual machines and enter the virtual machines, and if local systems are adopted as the receiving ends of the data packets, the data packets enter local programs to be processed or used. The method has the advantages that through the setting of a desktop virtualization platform and the virtual machines, the flood attacks of TCPs, UDPs and ICPMs can be effectively prevented, the virtual machines can share one filter rule, and if the filter rule is changed, all the virtual machines can be modified in an unified mode.

Description

technical field [0001] The invention relates to the technical field of application virtualization, in particular to a method for protecting against flood attacks in desktop virtualization. Background technique [0002] KVM (Kernel-based Virtual Machine) is a full-featured desktop virtualization solution on the x86 platform under linux. The biggest advantage of kvm is that it is integrated with the linux kernel, so it has the advantages of open code and fast speed, but the kvm virtual machine During the running process, there is no unified solution to network attack and protection. At present, the kvm-based desktop virtualization has the following deficiencies: [0003] 1. The kvm-based desktop virtualization platform lacks methods to protect against flood attacks [0004] A firewall is an information security protection system that allows or blocks the transmission of data according to specific rules. However, in the kvm-based desktop virtualization platform, there is no co...

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Problems solved by technology

[0002] KVM (Kernel-based Virtual Machine) is a full-featured desktop virtualization solution on the x86 platform under linux. The biggest advantage of kvm is that it is integrated with the linux kernel, so it has the advantages of open code and fast speed, but the kvm virtual machine During the running process, there is no unified solution to network attack and protection. At present, the kvm-based desktop virtualization has the following deficiencies:

[0004] A firewall is an information security protection system that allows or blocks the transmission of data according to specific rules. However, in the kvm-based desktop virtualization platform, there is no complete set of solutions for the virtual machines in the platform. Ways to Protect Against Flood Attacks

[0005] 2. Traditional desktop firewalls are not available

All the found solutions to prevent flood attacks need to set up agents inside the virtual machine, which cannot fundamentally solve the protection of the entire platform against flood attacks

[0007] 3. Lack of management of protection against flood attacks based on desktop virtualization

Mandatory modification operations can only be performed by modifying the firewall rules in the server system of the platform, but unified management cannot be achieved

[0009] 4. The configuration of protection against flood attacks is opaque

[0010] The general method for protecting against flood attacks needs to install corresponding software on the client computer to prevent flood attacks, which brings troubles to administrators and users, requires a lot of energy on how to install and configure the software, and can easily cause users to The misoperation and misconfiguration of the system will cause the whole system to crash, which will bring unnecessary troubles, so the specific implementation method and process of flood attack protection, users do not need to know

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