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That Memory Leak Revisited
While searching for memory leaking troubleshooting techniques that could be applied to 64-bit Windows (for the DHCP Server memory leak I found I had the other day ), I stumbled across the answer to my problem in an internal tool (weird that I missed it Read More...
Windows Server 2008 Diagnostics Off The Cuff
A word of caution to those of you that like endings: this isn't over yet. I'm running a rather sad and noisy X64 desktop as a server at home. Once a proud warrior, actually, no, wait, it was never any good. It's just a Virtual Server host (it's not quite Read More...
The Cat's Out Of The Bag: ISA Server will become ForeFront TMG
So, we all know that ISA 2006 doesn't work on Windows Server 2008 . Massive architectural changes to the IP stack, blah blah, etc, etc. People (uh, yeah, just "people") have been asking about what's to become of ISA Server for a while: "There's Read More...
Post-SP2 TCP Offload Fix
I've mentioned Chimney before . Now, a new Windows Update fix for TCP Offload, which turns it off . It was on by default in Windows Server 2003 SP2, so if your NIC supported Offload, or RSS, or that other thing I can never remember, it was enabled. But: Read More...
"Stacking" NTLM Authentication
This question came up today (well, actually, it was about four weeks ago I started typing this, but bear with me), and it's been a little while since I've rambled about authentication protocols, so let's enjoy a nice, calm discussion on a Monday Tuesday Read More...
MaxUserPort - what it is, what it does, when it's important
What can we say about MaxUserPort that hasn't already been said? Not a lot, it would seem. He's a beautiful dancer, perhaps? Ahh, such gentle humour, and nary a kitten drowned anywhere. But TCP port shenanigans are fairly frequently misunderstood, so Read More...
SetSPN improvements in Windows Server 2008! W00t!
All this stuff is based on a prerelease (RC1) version of Windows Server 2008 and may change before final release. Cheques may not be honoured. I had a happy moment one night in India when the trainer for our IIS 7.0 TTT course discussed some of the Kerberos-related Read More...
401.3, you say? Not 403?
You're running an IIS 6.0 website, and you have a virtual directory configured for anonymous authentication only (that is, you've un ticked Integrated Windows Authentication). Using a web browser, you try to access a file in that virtual directory. http://example.com/vdir/something.txt Read More...
I've gone soft!
Yes, perhaps my friends are right. Or perhaps they're just not nice people. Oh, enough with the trying-to-suspend-the-tension thing, I'm of course talking about my desk phone (a venerable Meridian thingo) being replaced with a Catalina USB phone as part Read More...
Netmon vs Chimney
I recently encountered TCP Chimney for the first time in the wild. Short version: Chimney is an offload technology that allows the NIC to deal with up to X TCP connections, with any overflow being handled by Windows. All good: get the NIC dealing with Read More...
KDC_ERR_BADOPTION when attempting constrained delegation
Hit this earlier while working with someone else on a Kerberos delegation problem. All the SPNs looked right and were registered against the right accounts; all the App Pools were Network Service; from what I'd been told, everything should have been working... Read More...
Quickly* pinging everything on a subnet
For when you don't remember that you set your wireless gateway's static IP to .253, and it's not showing up in the list of leases on the DHCP server (predictably, but it's not helping your memory, and it's not in the arp cache either...), and you need Read More...
IIS 7 - LH Beta 3 Launch Stuff
Tons of cool new things in Longhorn Beta 3 on the IIS front , including: ... the first beta of our new FTP server . This isn't a part of Longhorn Server Beta 3, but it is available today and offers a lot of brand new features for you to experience today. Read More...
Kerbi Wiki
Back from another holiday (I call it the Arnold Rimmer technique) I've been trying to collect, rework and refurbish my thoughts on web-based Kerberos stuff in a personal Wiki. You're welcome to peruse it with the usual disclaimers that I'm frequently Read More...
Every Windows Admin Should Know: Template User vs Mr Nobody
Raymond beats me to the punch (mine was going to be rant-i-er, but five times * as funny), on how the HKEY_USERS\.Default , despite having the word "Default" in the key name, isn't "The Default User" from which all others are initially spawned. It's possibly Read More...
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