TcpMaxSendFree
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
TcpMaxSendFree
HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
| Data type | Range | Default value |
|---|---|---|
REG_DWORD |
0 - 65535 |
5000 |
Description
Sets the size limit of the TCP header resource. On computers with ample RAM, increasing this limit can improve responsiveness during a SYN flood denial-of-service attack.
Activation Method
You must restart the computer for changes to this entry to take effect.