Abstract: Early-warning decision method, node and system are provided in the present disclosure. The method includes obtaining a flow analysis result of a portion of service requests that are targeted at a same server; calculating a flow of all the service requests that are targeted at the server based on a flow indicated by the flow analysis result and a weight of a current distributed node, the weight being a weight or proportion of all the service requests targeted at the server that accounts for the flow indicated by the flow analysis result that is obtained by the current distributed node; comparing a flow of all the service requests that are targeted at the server with an abnormal flow threshold; and determining whether to send an instruction for performing subsequent processing on the server based on a comparison result.

Abstract: Embodiments of the present application relate to a method and device for defending against website attacks. The method includes obtaining a traffic threshold value corresponding to a target IP address, determining whether real-time visitor traffic for the target IP address exceeds the traffic threshold value, and handling visitor traffic for the target IP address based at least in part on whether the real-time visitor traffic for the target IP address exceeds the traffic threshold value, wherein the handling incoming visitor traffic for the target IP address based at least in part on whether the real-time visitor traffic for the target IP address exceeds the traffic threshold value includes, in the event that the real-time visitor traffic for the target IP address exceeds the traffic threshold value, configuring a blackhole route for the target IP address, and redirecting the incoming visitor traffic for the target IP address to the blackhole route.

Abstract: Network traffic processing includes: determining whether one or more packets of network traffic associated with a first public network address have been dropped, the first public network address being associated with a target host; in response to the determination that the one or more packets associated with the first public network address have been dropped, assigning a second public network address to the network traffic and generating a forwarding path corresponding to the second public network address, wherein the second public network address is configured to receive the network traffic, and wherein the forwarding path is configured to forward the network traffic received at the second public network address to the target host; and notifying a filtering device to transmit the network traffic to the second public network address and cause the network traffic to be forwarded to the target host according to the forwarding path.

Abstract: Early-warning decision method, node and system are provided in the present disclosure. The method includes obtaining a flow analysis result of a portion of service requests that are targeted at a same server; calculating a flow of all the service requests that are targeted at the server based on a flow indicated by the flow analysis result and a weight of a current distributed node, the weight being a weight or proportion of all the service requests targeted at the server that accounts for the flow indicated by the flow analysis result that is obtained by the current distributed node; comparing a flow of all the service requests that are targeted at the server with an abnormal flow threshold; and determining whether to send an instruction for performing subsequent processing on the server based on a comparison result.

Abstract: Network traffic processing includes: determining whether one or more packets of network traffic associated with a first public network address have been dropped, the first public network address being associated with a target host; in response to the determination that the one or more packets associated with the first public network address have been dropped, assigning a second public network address to the network traffic and generating a forwarding path corresponding to the second public network address, wherein the second public network address is configured to receive the network traffic, and wherein the forwarding path is configured to forward the network traffic received at the second public network address to the target host; and notifying a filtering device to transmit the network traffic to the second public network address and cause the network traffic to be forwarded to the target host according to the forwarding path.

Abstract: Embodiments of the present application relate to a method and device for defending against website attacks. The method includes obtaining a traffic threshold value corresponding to a target IP address, determining whether real-time visitor traffic for the target IP address exceeds the traffic threshold value, and handling visitor traffic for the target IP address based at least in part on whether the real-time visitor traffic for the target IP address exceeds the traffic threshold value, wherein the handling incoming visitor traffic for the target IP address based at least in part on whether the real-time visitor traffic for the target IP address exceeds the traffic threshold value includes, in the event that the real-time visitor traffic for the target IP address exceeds the traffic threshold value, configuring a blackhole route for the target IP address, and redirecting the incoming visitor traffic for the target IP address to the blackhole route.