Abstract: A method, non-transitory computer readable medium and device that assists with preventing distributed denial of service attack includes receiving a request for a web resource from a client computing device. The received requested for the web resource is determined for presence of referrer header information. When the received request is determined to include the referrer header information, then the referrer header information is checked whether it includes a known domain and a valid cookie associated with the known domain. A distributed denial of service attack is prevented by providing a proactive challenge to the requesting client computing device when received request for the web resource does not include the referrer header information or when the referrer header information comprises the known domain and does not include the valid cookie.

Abstract: Methods, non-transitory computer readable media, network traffic management apparatuses, and network traffic management systems that receives a client access request to access content at one or more server devices. Fingerprint attributes associated with the client device are collected and utilized to identify potential fingerprints. Potential fingerprints are identified based on the collected fingerprint attributes. Previously validated fingerprints stored in a database are utilized to determine when the one of the potential fingerprints matches with one of a previously validated fingerprints stored in the database. The client device is authorized to access content requested in the client access request when the determination indicates that the one of the potential fingerprints matches with one of the plurality of previously validated fingerprints stored in the database.

Abstract: A method, non-transitory computer readable medium and device that assists providing a secure channel includes selecting a client-server key from a plurality of client-server keys based on an IP address of a client computing device and a time of receiving a request from the client computing device wherein the selecting further includes identifying an index value associated with the selected client-server key. Next, a context signature is generated based on the IP address of the client computing device, the time of receiving the request from the client computing device and the index value associated with the selected client-server key. Next, the generated context signature is encrypted using a stored private key. A secure channel is provided by preparing and sending a response including the selected client-server key and the encrypted context signature back to the client computing device.