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Archive for the ‘it’ Category

SMTP Diagnostics Tool for Windows

February 25th, 2010 Craig Tadlock No comments

Are you running a SMTP server on a Windows Server? Then you need to use the Microsoft Exchange Server SMTPDiag Tool. It will verify your SMTP, DNS and firewall settings to ensure everything is setup properly and you are able to send email.

Categories: it, tips & tricks Tags: , , , ,

Fix Loopback 401 Errors in Windows Server 2008

February 25th, 2010 Craig Tadlock No comments

If you use a loopback address (127.0.0.1) or hosts files on your Windows Server to reference a local IIS web application with Windows Authentication it will probably fail with a 401 error due to a new security constraint. This is often the case if you use a public url for your Sharepoint of TFS server. To resolve this you need to add a registry key…

  1. Open regedit
  2. Open the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
  3. Create a new DWORD under Lsa named DisableLoopbackCheck
  4. Set its value to 1
  5. Restart the server for good measure

Related Links

http://support.microsoft.com/kb/896861

http://ppalakollu.blogspot.com/2009/04/ie-8-ntlm-authentication-on-windows.html

Windows Hyper-V Server is Awesome

November 25th, 2009 Craig Tadlock No comments

I think this has been out for a bit, but I just came across it. Its a FREE stand-alone Hyper-V server for Windows. Think of it as as Windows Server 2008 R2 with only the Hyper-V role installed. I’m a huge believe in virtualized server; whether they are on your own physical servers or up in the cloud somewhere. The ability to save states, create templates and change out your server(s) configuration on the fly is great. This product allows you to do all of that but with very low resource overhead. I already run Hyper-V on my servers so this will be an easy switch. Any new server I configure, this will be the base “OS”.

Hyper-V Server 2008 R2 Product Page

http://www.microsoft.com/hyper-v-server/en/us/default.aspx

Windows Virtualization Team Blog

http://blogs.technet.com/virtualization/archive/2009/05/06/microsoft-hyper-v-server-2008-r2-release-candidate-free-live-migration-ha-anyone.aspx