d-root ipv4 has changed. Update db.root to show this

[Mark]

According to http://www.root-servers.org/ and http://d.root-servers.org/renumber.html the D.Root server has changed its ipv4. I quote the message below

"D-Root is Changing its IPv4 Address on 3 January 2013
This is advance notice that there is a scheduled change to the IPv4 address for one of the authorities listed for the DNS root zone and the .ARPA TLD. The change is to D.ROOT-SERVERS.NET, which is administered by the University of Maryland.

The new IPv4 address for this authority is 199.7.91.13"

the /etc/bind/db.root file in bind needs to be changed to reflect this.

34c34
< D.ROOT-SERVERS.NET. 3600000 A 128.8.10.90
---
> D.ROOT-SERVERS.NET. 3600000 A 199.7.91.13

The notice also states that the old ip will only be available for at least 6 months so this change should probably be applied before then.

[Mark (markovh)]

The official new zone file can be found at ftp://ftp.internic.net/domain/named.root and the diff to the current version is as follows.

12,13c12,13
< ; last update: Jun 17, 2010
< ; related version of root zone: 2010061700
---
> ; last update: Jan 3, 2013
> ; related version of root zone: 2013010300
34c34,35
< D.ROOT-SERVERS.NET. 3600000 A 128.8.10.90
---
> D.ROOT-SERVERS.NET. 3600000 A 199.7.91.13
> D.ROOT-SERVERS.NET. 3600000 AAAA 2001:500:2D::D

The notice says the ipv6 address is staying the same so apparently it was supposed to be in bind all along but for some reason, never was.