domain name system - Questions about DNS, BIND and setup

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I have a few questions which I can't
find the
answer.

• Is it
  possible to create two nameservers (ns1,ns2) with one IP
  ?





• To move my server DNS
  from godaddy to ns1/ns2.my_domain.com, I can use Bind
  ?




• If I install Bind, create a master
  zone (www, ns1, ns2, mail, pop, etc.), set it up. Then create second master zone
  (reverse), set it up. Log into godaddy account and change the nameservers to
  ns1/ns2.my_domain.com. Is it enough for the redirection to work
  ?

Here's my
named.conf :

options {

            listen-on port 53 { 127.0.0.1; };
 listen-on-v6 port 53 { ::1; };

            directory "/var/named";

 dump-file
            "/var/named/data/cache_dump.db";
 statistics-file
            "/var/named/data/named_stats.txt";
 memstatistics-file
            "/var/named/data/named_mem_stats.txt";
 allow-query { localhost; };

            recursion yes;

 dnssec-enable yes;
 dnssec-validation
            yes;
 dnssec-lookaside auto;


 /* Path to ISC
            DLV key */
 bindkeys-file "/etc/named.iscdlv.key";


            managed-keys-directory "/var/named/dynamic";
};

logging
            {
 channel default_debug {
 file "data/named.run";

            severity dynamic;

 };
};

zone "." IN
            {
 type hint;
 file
            "named.ca";
};

include
            "/etc/named.rfc1912.zones";
include
            "/etc/named.root.key";


zone "my_domain.com" {

            type master;
 file "/var/named/my_domain.com.hosts";

            };

zone "67.4.70.xxx.in-addr.arpa" {
 type
            master;
 file "/var/named/xxx.70.4.67.rev";

            };

Here's
the content from
/var/named/my_domain.com.hosts

$ttl
            38400
my_domain.com. IN SOA my_domain.com. root.localhost. (

            1364566563
 10800
 3600
 604800


            38400 )
my_domain.com. IN NS my_domain.com.
my_domain.com. IN A
            xxx.70.4.67
www.my_domain.com. IN A xxx.70.4.67
mail.my_domain.com.
            IN A xxx.70.4.67
ns1.my_domain.com. IN A
            xxx.70.4.67
ns2.my_domain.com. IN A xxx.70.4.67
pop.my_domain.com.
            IN A xxx.70.4.67
smtp.my_domain.com. IN A xxx.70.4.67
my_domain.com.
            IN NS ns1.my_domain.com.

my_domain.com. IN NS
            ns2.my_domain.com.
my_domain.com. IN MX 10
            mail.my_domain.com.

Here's
the content from
/var/named/xxx.70.4.67.rev

$ttl
            38400
67.4.70.xxx.in-addr.arpa. IN SOA my_domain.com. root.locahost.
            (
 1364575048
 10800

 3600

            604800
 38400 )
67.4.70.xxx.in-addr.arpa. IN NS
            my_domain.com.
67.4.70.xxx.in-addr.arpa. IN PTR
            my_domain.com.

Any
help would be really appreciated
^^

Thanks.

Answer

• Is it possible to create
  two nameservers (ns1,ns2) with one IP ?

Don't do
that.

If you don't have another machine to use
as a secondary NS, use one of the multitude of free services out there that will do this
for you.

• To move my server DNS from godaddy to
  ns1/ns2.my_domain.com, I can use Bind ?

Yes.

• If I install Bind, create a master zone (www, ns1, ns2,
  mail, pop, etc.), set it up. Then create second master zone (reverse), set it up. Log
  into godaddy account and change the nameservers to ns1/ns2.my_domain.com. Is it enough
  for the redirection to work ?

For the forward
zone: Yes. It is unlikely that they will delegate the reverse zone to
you.

Note that if you're going to have your NS
hostnames inside your zone, you will need to add glue records via your domain registrar.
This is essentially a "bootstrap" for other name servers to be able to resolve your NS
addresses.