RE: Add these to your "must do" for your ISA
- From: "Greg Mulholland" <greg@xxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Mon, 3 Oct 2005 12:36:53 +1000
hot apples
________________________________
From: Steve Moffat [mailto:steve@xxxxxxxxxx]
Sent: Monday, October 03, 2005 12:15 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Add these to your "must do" for your ISA
http://www.ISAserver.org
Cool banana's...:>))
________________________________
From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
Sent: Sunday, October 02, 2005 8:36 PM
To: ISA Mailing List
Subject: [isalist] Add these to your "must do" for your ISA
http://www.ISAserver.org
It may have gone overlooked in the general melee of postings, but I had
posted these before and thought them worth reiterating...
- Tired of the ISA sending NetBT broadcasts when DNS lookups fail?
This setting:
HKLM\SystemCurrentControlSet\Services\NetBT\Parameters NodeType, DWORD,
0x2
..will cure that.
By setting this to a value of 2, You're telling Windows to limit its
name lookup efforts to defined DNS and WINS servers.
As a result, Windows will no longer wait for NetBT broadcasts to fail
before reporting a name lookup failure.
Can you say "faster lookup responses and therefore faster connections
(or failures)", boys and girls?
- MS05-019 fixed an ICMP MTU vulnerability that existed in Windows.
Because the ISA team was aware of this issue before ISA 2004 shipped,
they opted to give you a "safe by default" configuration since they had
no idea if or when the Windows issue might be fixed.
Unfortunately, it also has the unfortunate side effect of limiting
Windows to 576-byte packets on all interfaces, reducing network
efficiency
This setting:
HKLM\SystemCurrentControlSet\Services\Tcpip\Parameters
EnablePMTUDiscovery, DWORD, 0x0
..is what the ISA installer creates.
This setting:
HKLM\SystemCurrentControlSet\Services\Tcpip\Parameters
EnablePMTUDiscovery, DWORD, 0x1
..is what will remove this protection (or you can delete the
"EnablePMTUDiscovery" value).
Both settings require a machine reboot to take effect.
Both settings will clean up your network traffic a bit.
Have fun!
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The correct technical term for haggis stalking is "havering".
<http://haggishunt.scotsman.com/haggisclopedia.cfm?part=5>
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