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Open source program that will detect and stop synflood attacks syndetector is a software solution which can detect and drop packets when a synflood attack is detected! syndetector is based on a simple detection system and on a simple use It is realy easy to setup this software.The aim of SynDetector is to detect and to break synflood attacks. A synflood is an attack which try to saturate a server with a flood of start of connections (syn packet). The effect is that normal client can't connect to the server. When a SYN is received by a server, that server will answer with a SYN-ACK to the client. To validate the connection the client will then need to send an ACK to the server. If the client ignores or can't answer to the SYN-ACK then all needed capacitiAnd there is a maximum of start of connections possible (limit of the system) so if the connections are realy fast the wanted effect appears.Effect: the saturated server can't answer to legal connections requests of normal client. Solution: the aim of SynDetector is to detect and ban IP where come attacks to block the SYN packets. A second aspect of SynDetector is the capacitie to detect and block a derivated of synflood attack. It's is possible to saturate a particular service instead of the server. Example: a flood of connection on Apache to reach the maximum number of connections. But in this case, the connection are normal and come from true IP (can't come from spoofed IP) so there is huge risk to use this attack and come often from amators. What's New in This Release: Bug-Fix : · Some time for obscure reason the daemon which allow a client to remote control the detector crashed but let the detecor alive. No more crash. Security-Fix : · Bad use of the crypt salt which is transmitted over the network with the rest of the crypted password. It was stupid.

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