TMG and Windows 2008R2 optimisation

IP Stack configuration
HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters “TcpTimedWaitDelay” DWord set to 0x1e.
“StrictTimeWaitSeqCheck” DWord set to 0x1.
Forces TCP/IP stack to hold TCP ports in a TIME_WAIT state for 30 seconds. Default is 120 seconds.

Disk subsystem – Web Cache
Disable short name creation. HKLM\SYSTEM\CurrentControlSet\Control\Filesystem NtfsDiable8dot3NameCreation 0x1
Disable last access update. HKLM\SYSTEM\CurrentControlSet\Control\Filesystem NtfsDsiableLastAccessUpdate 0x1
Multiprocessor only - Bypassing I/O Counters. HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\I/O System CounterOperations 0x0
Task Manager will no longer provide per-process I/O measurements
Useful when a process generates considerable disk and network I/O on a SMP system, which an ISA server under load can easily do.

Domain Topology
NTLM Auth issues. Set HKLM\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters DWord “MaxConcurrentApi” 0x3. If still having issues walk up to 0x6.


Firewall & Web Proxy service DNS Cache (in-process)
Services hold the last 3000 DNS records, regardless of actual TTL, for 6 hours.
Keys
Web Proxy: HKLM\SOFTWARE\Microsoft\Fpc\Arrays\{Array GUID}\ArrayPolicy\WebProxy "msFPCDnsCacheSize“ Default is 0xBB8 & "msFPCDnsCacheTtl" Default is 0x5460
Firewall: HKLM\SOFTWARE\Microsoft\Fpc\Arrays\{Array GUID}\ArrayPolicy\Proxy-WSP "msFPCDnsCacheSize“ Default is 0xBB8 & "msFPCDnsCacheTtl“ Default is 0x5460