Wednesday, May 18, 2011

Windows 2008R2 failing to update DDNS records

If you are running an environment with dynamic DNS, record scavenging, and 2008R2 servers; you may notice records disappearing from time to time. There is a bug in 2008 that causes systems to fail to maintain their records if you make changes to the DNS server IP's that the system uses. If you run ipconfig /registerdns, it forces the system to update and all is well. If you want to get around having this problem with a more permanent solution, Microsoft released this patch recently (kb 2520155).

IPv6 videos

Here are some useful presentations on IPv6 held at last year's DEFCON conference:

Who Cares about IPv6, Sam Browne
IPv6 No Longer Optional, (ARIN) John Curran
Implementing IPv6, (ARIN) Matt Ryanczak