Tran Van Tan wrote:
Hi !
How do I enable an DNS message and send it to nameserver ?
Uh... maybe it's just a terminology problem, or language
problem, but...
One doesn't _send_ DNS messages to a nameserver, one
sends DNS _queries_. This is handled in the resolver
library, or kernel networking handler, enabled by
an entry of
hosts: dns # or dns files or files dns ...
in /etc/nsswitch.conf,
and directed to an appropriate nameserver with
an entry such as
nameserver 13.169.12.144# replace with the closest nameserver in your
network
in /etc/resolv.conf
There can be, typically, three effective entries of nameserver ...;
if the first is unreachable, then the second is tried, and so on.
It is a shortcut to be able to leave off the domain if
entries of
domain somecollege.edu.vn
search anotheruniversity.edu.vn,somebusiness.com.vn
are also in /etc/resolv.conf
For command-line access to DNS, use 'nslookup'.
See also DNS-HOWTO, for example at
www.linuxdoc.org/HOWTO/DNS-HOWTO.html,
or the DNS-HOWTO.txt at your favorite documentation repository.
Thanks.
Anytime Almost...
