kk123 Posted June 6, 2005 Share Posted June 6, 2005 Hi everyone my windows 2000 sp4 just been SYN Flood Attacked and it cannot go Online, once it go online the attack will happen again, i've already do serveral reg fix to remove this syn flood but cannot make it, my server got the most updated HF.anyone face this problem b4 ?? pls guide me . Thx in advance Link to comment Share on other sites More sharing options...
fdv Posted June 7, 2005 Share Posted June 7, 2005 What registry values did you tweak?Under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services, have you added Microsoft's recommended settings?Value Name Value (REG_DWORD)SynAttackProtect 2TcpMaxPortsExhausted 1TcpMaxHalfOpen 500TcpMaxHalfOpenRetried 400TcpMaxConnectResponseRetransmissions 2TcpMaxDataRetransmissions 2EnablePMTUDiscovery 0KeepAliveTime 300000 (5 minutes)NoNameReleaseOnDemand 1 Link to comment Share on other sites More sharing options...
kk123 Posted June 9, 2005 Author Share Posted June 9, 2005 Thx for your reply yes i have tweaked as microsoft recomemedanyway i have found a solution to resolve the problem now my server is running smoothly Link to comment Share on other sites More sharing options...
Win2k3EE Posted June 9, 2005 Share Posted June 9, 2005 anyway i have found a solution to resolve the problem now my server is running smoothly<{POST_SNAPBACK}>Would you be kind to post your solution here. Maybe there are others who need your solution. Link to comment Share on other sites More sharing options...
kk123 Posted June 10, 2005 Author Share Posted June 10, 2005 it is a service hiding under system32 and it only will triggle once u go online if u are not ONLINE <---- join public , it's like normal if u stay in private. identify the particural service and delete it. (unpack32.exe).So u need to apply the microsoft recemmemed tweak as fdv posted ( there is some more ) i can found it so i think there won't be a problem for u all Hope this help Best Regards to u all Link to comment Share on other sites More sharing options...
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