Abstract: A hot backup switching method and system based on network card detection. The method includes the following steps: S1: driving a first synchronous network card to send a query instruction to a second synchronous network card according to a preset time interval; S2: determining whether the first synchronous network card obtains a response packet sent by a master server device, if yes, executing S1; and if not and executing S3; S3: determining whether the working mode of the playback terminal belongs to a master mode; and if yes, and executing S4; and S4: determining whether the second synchronous network card responds, if yes, executing S1. Hot backup switching is implemented by means of the network cards of the master server device and the slave server device, and seamless switching and continued playback are realized.

Abstract: A hot backup switching method and system based on network card detection. The method includes the following steps: S1: driving a first synchronous network card to send a query instruction to a second synchronous network card according to a preset time interval; S2: determining whether the first synchronous network card obtains a response packet sent by a master server device, if yes, executing S1; and if not and executing S3; S3: determining whether the working mode of the playback terminal belongs to a master mode; and if yes, and executing S4; and S4: determining whether the second synchronous network card responds, if yes, executing S1. Hot backup switching is implemented by means of the network cards of the master server device and the slave server device, and seamless switching and continued playback are realized.

Abstract: A method for acquiring the IP address of a host on the basis of VirtualBox, and a background server, includes the following steps: S1, installing a subsystem into a host by means of VirtualBox; S2, setting a shared folder in VirtualBox in an auto-mount and fixed allocation manner, and storing a shared directory and a shared name in the host; S3, adding a BAT script into the host, acquiring IP configuration information of the host by means of the BAT script, and starting up the subsystem in VirtualBox; and S4, driving the subsystem to analyze the IP configuration information to acquire the IP address of the host. The IP address of a host is acquired by means of a BAT script, and is then shared to a subsystem for analysis, such that the IP address of the host is acquired by the subsystem.