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在 Windows中加固TCP/IP協(xié)議棧以抵御拒絕服務的攻擊


可能大家在其他很多地方都看到過在Windows中通過修改注冊表來加固TCP/IP協(xié)議棧以抵御拒絕服務的攻擊,不過基本上是針對Windows 2000的 。在此我想提醒大家,Windows 2000和Windows Server 2003中啟用SYN攻擊保護的鍵值不一樣 。在Windows 2000中,通常是設置SynAttackProtect鍵值為dword:2以獲得最有效的SYN攻擊保護,但是在Windows Server 2003中,SynAttackProtect鍵值只具有0和1這兩個值,只是在鍵值設置為dword:1時啟用SYN攻擊保護 。關于它們之間的區(qū)別,請參見微軟知識庫文章: HOW TO:在 Windows 2000 中加固 TCP/IP 協(xié)議棧以抵御拒絕服務的攻擊
和 HOW TO:在 Windows Server 2003 中加固 TCP/IP 堆棧以抵御拒絕服務攻擊 關于這些鍵值更為詳細的信息,請參見微軟安全指南文章如何:強化 TCP/IP 堆棧安全,不過這篇文章中描述的部分鍵值位置有誤,具體位置請參見前面兩篇知識庫文章 。在此我為大家創(chuàng)建了兩個分別針對Windows 2000和Windows Server 2003的注冊表文件,導入后即可啟用SYN攻擊保護 。For Windows 2000(文件名后綴為.txt,右擊后選擇目標另存為,保存后修改文件擴展名為.reg再導入注冊表即可),或者將以下內容復制后導入到注冊表中: --------------------------------------------------------------------------------- 【在 Windows中加固TCP/IP協(xié)議棧以抵御拒絕服務的攻擊】Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParameters]
"SynAttackProtect"=dword:2
"TcpMaxPortsExhausted"=dword:5
"TcpMaxHalfOpen"=dword:500
"TcpMaxHalfOpenRetried"=dword:400
"TcpMaxConnectResponseRetransmissions"=dword:2
"TcpMaxDataRetransmissions"=dword:2
"EnablePMTUDiscovery"=dword:0
"KeepAliveTime"=dword:300000
"NoNameReleaseOnDemand"=dword:1
"DefaultTTL"=dword:256
"EnableDeadGWDetect"=dword:0
"DisableIPSourceRouting"=dword:1
"EnableFragmentChecking"=dword:1
"EnableMulticastForwarding"=dword:0
"IPEnableRouter"=dword:0
"EnableAddrMaskReply"=dword:0
[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesAFDParameters]
"EnableICMPRedirect"=dword:0
"EnableDynamicBacklog"=dword:1
"MinimumDynamicBacklog"=dword:20
"MaximumDynamicBacklog"=dword:20000
"DynamicBacklogGrowthDelta"=dword:10
---------------------------------------------------------------------------------For Windows Server 2003(文件名后綴為.txt,右擊后選擇目標另存為,保存后修改文件擴展名為.reg再導入注冊表即可),或者將以下內容復制后導入到注冊表中: --------------------------------------------------------------------------------- Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParameters]
"SynAttackProtect"=dword:1
"TcpMaxPortsExhausted"=dword:5
"TcpMaxHalfOpen"=dword:500
"TcpMaxHalfOpenRetried"=dword:400
"TcpMaxConnectResponseRetransmissions"=dword:2
"TcpMaxDataRetransmissions"=dword:2
"EnablePMTUDiscovery"=dword:0
"KeepAliveTime"=dword:300000
"NoNameReleaseOnDemand"=dword:1
"DefaultTTL"=dword:256
"EnableDeadGWDetect"=dword:0
"DisableIPSourceRouting"=dword:1
"EnableFragmentChecking"=dword:1
"EnableMulticastForwarding"=dword:0
"IPEnableRouter"=dword:0
"EnableAddrMaskReply"=dword:0
[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesAFDParameters]
"EnableICMPRedirect"=dword:0
"EnableDynamicBacklog"=dword:1
"MinimumDynamicBacklog"=dword:20
"MaximumDynamicBacklog"=dword:20000
"DynamicBacklogGrowthDelta"=dword:10
---------------------------------------------------------------------------------

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