Abstract: The technology disclosed herein enables detection of domain hijacking when a DNS resolver is performing a DNS lookup. In a particular embodiment, a method provides, in response to a request to resolve a network address corresponding to a domain name, determining that a nameserver for the domain name is suspect based on satisfaction of nameserver criteria associated with the domain name. The method further includes preventing the nameserver from being used to resolve the request in response to determining that the nameserver is suspect.

Abstract: Compressed natural gas (CNG) fueled auxiliary power source in the 100-250 brake horsepower range, mounted (hung) on the rear of the wind generator main shaft, equipped with shaft speed sensors that have been calibrated to minimum/maximum desired main shaft (electrical generator) speed and that can engage and spin the main shaft attached to the electrical power generator on demand when there is insufficient wind to do so.

Abstract: A receiver node includes an optical amplifier optically coupled to the input of a receiving device such as a PIN photodiode. A controller inputs received power level values from the receiver to perform gain control. The input signal of an optical receiving device is pre-amplified by an optical amplifier such that the amplified signal is within a dynamic range of the receiving device. Upon the occurrence of a LOS (loss of signal) event, the controller sets the gain to a Home Gain value. Thus, when the signal is reestablished, a strong signal will not be over amplified and damage the receiver. Gain control is reestablished when the LOS event is over. Various methods are used to declare LOS including comparing the received power level or commanded pump power against a threshold. The LOS declaration may also be received from an external device or service channel.

Abstract: A receiver node includes an optical amplifier optically coupled to the input of a receiving device such as a PIN photodiode. A controller inputs received power level values from the receiver to perform gain control. The input signal of an optical receiving device, is pre-amplified by an optical amplifier such that the amplified signal is within a dynamic range of the receiving device. Upon the occurrence of a LOS (loss of signal) event, the controller sets the gain to a Home Gain value. Thus, when the signal is reestablished, a strong signal will not be over amplified and damage the receiver. Gain control is reestablished when the LOS event is over. Various methods are used to declare LOS including comparing the received power level or commanded pump power against a threshold. The LOS declaration may also be received from an external device or service channel.

Abstract: A receiver node includes an optical amplifier optically coupled to the input of a receiving device such as a PIN photodiode. A controller inputs received power level values from the receiver to perform gain control. The input signal of an optical receiving device is pre-amplified by an optical amplifier such that the amplified signal is within a dynamic range of the receiving device. Windows are utilized to trigger the gain control algorithm such that when the received power level is inside a first window the gain control is turned off. When the received power level is outside the second window, the gain control is turned on. Additional windows may be used to adjust the rate of gain change. The rate of gain change is decreased as the magnitude of the difference between the current received power level and the target received power level decreases. Pump power levels may be fed back to the controller such that a soft limit may be imposed on to limit he maximum pump power and thereby prevent receiver damage.