CentOS - Jul 2012 - bind: root hints named.ca and named.root

For 6.x I have both of these files in my /var/named directory, probably copied
when upgraded.  named.ca date inside the file is dated 2008 and named.root is
from a few months ago.

Am I correct in assuming that named.ca is old and that I should be using
named.root in my named.conf files?  Is it SOP to use the latest from
ftp://ftp.internic.net/domain/named.root

thx

-- Mike

Michael McNulty writes:
> 
> For 6.x I have both of these files in my /var/named directory, probably
copied when upgraded.  named.ca date inside the file is dated 2008 and
named.root is from a few months ago.
> 
> Am I correct in assuming that named.ca is old and that I should be using
named.root in my named.conf files?  Is it SOP to use the latest from
ftp://ftp.internic.net/domain/named.root
 It's not needed. The root hints are builtin in bind9. You only need the
file
 from internic if there are changes to the root servers, which IIRC happened
 once in the past few years, and can't wait until $distro updates bind.