Improve windows networking

Improve windows networking (especially if hosting webservers)

First of all, I forgive you for having to use windows to host your web server :)

Now that thats out of the way, here's how you speed up networking performance on windows (especially if you happen to host Apache, IBM HTTP Server, or any other web server on a windows machine)

Create a .reg file (eg: perf.reg) with the contents that follow:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"MaxUserPort"=dword:00008000
"TcpTimedWaitDelay"=dword:0000001e
"TcpMaxDataRetransmissions"=dword:00000005

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces]
"TcpAckFrequency"=dword:00000001
"TcpDelAckTicks"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AFD\Parameters]
"EnableDynamicBacklog"=dword:00000001
"MinimumDynamicBacklog"=dword:00000020
"MaximumDynamicBacklog"=dword:00001000
"DynamicBacklogGrowthDelta"=dword:00000010
"KeepAliveInterval"=dword:00000001

Double click on the file to merge its contents into the registry. Restart the machine.
You're done.

1)


HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Value Name: MaxUserPort 

Value Type: REG_DWORD 

Valid Range: 5000-65534 (decimal) Default: 0×1388 (5000 decimal)

New Value: 65534 


Description: This parameter controls the maximum port number
used when an application requests any available user port from the system.
Normally, ephemeral (that is, short-lived) ports are allocated between the
values of 1024 and 5000 inclusive.



2)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters


Value Name: TcpTimedWaitDelay


Value Type: REG_DWORD 


Valid Range: 30-300 (decimal)


Default: 0xF0 (240 decimal)


New Value: 30

Description: This parameter determines the time that must elapse
before TCP can release a closed connection and reuse its resources. This
interval between closure and release is known as the TIME_WAIT state or 2MSL
state. During this time, the connection can be reopened at much less cost to
the client and server than establishing a new connection.



Normally, TCP does not release closed connections until the
value of this entry expires. However, TCP can release connections before this
value expires if it is running out of TCP control blocks (TCBs). 



A lower TcpTimedWaitDelay setting means that the sockets wait in
the TIME_WAIT state for less time. A higher MaxUserPort setting means that you
can have more sockets in the TIME_WAIT state.