Ask the Directory Services Team has a good article on troubleshooting DFS links (DFS Referrals and IPv6: Outta site!) as well as a discussion of how not to disable IPv6 (unbinding it from an adapter) and how to do it correctly (KB929852).
In case you really need to disable IPv6, consider using a Group Policy Preference or automate it with PowerShell -
Set-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters DisabledComponents 0xffffffff -type dword
Useful information.
What is Fiddler?
Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP(S) traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler includes a powerful event-based scripting subsystem, and can be extended using any .NET language.
Fiddler is freeware and can debug traffic from virtually any application, including Internet Explorer, Mozilla Firefox, Opera, and thousands more.
Came across this tool today, and I’m quite impressed.
Watch the videos! I’ve been looking for a tool like this for long.
A warning: You have to stretch you security if you want to monitor Outlook traffic, as Outlook requires a valid certificate. Read more here.
DHCP gets a lot of new, much-wanted, features in Windows Server 2008 R2. For instance in split scope scenario (80/20), the server with the 20% will run out of addresses. To avoid this, the response can be delayed and thus most leases will come from 80% server. Read more in the team blog.
