Re: looking for DNS GURU

koff200 wrote:

Hi all
is somebody can give me the hole way( every stage)  to implément DNS server
in my local network ?
I'm using this  ip adresse  223.10.100.1 for my serveur.(who's name is
Orion). 223.10.100.2 for
Orion2  and 223.10.100.3  for Orion3
I'm planning to use BIND 9.2.0.

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You are giving way too little information to work with and setting up a 
DNS is not explained in a single e-mail but here are general rules to 
set up a simple DNS service:

1 - chart your whole network. Place your DNS servers on key points so 
that even an outage of part of the network will still give the remaining 
nodes DNS access.
2 - determine your master name server.
3 - make sure the internet root DNS servers know where your domain's DNS 
servers are. Usually your domain service provider will tell you how to 
do that.
4 - on the master, create a file in /var/named which has a $TTL, a SOA 
record, at least 2 NS records, an MX record and A or CNAME records for 
each of your hosts. One of the A records must be localhost, pointing to 
127.0.0.1
5 - for reverse name lookups, create a file which has a $TTL, a SOA 
record, as least 2 NS records and PTR records for each of your hosts.
6 - edit named.conf on the master and incorporate the following entries
zone "mydomain.mynet" IN {
                type master;
                file "first.file.name";
                allow-update { none; };
};
zone "100.10.223.in-addr.arpa" IN {
                type master;
                file "second.file.name";
                allow-update { none; };
};
7 - edit named.conf on each slave and add the lines (suppose 
223.10.100.1 is the master)
zone "mydomain.mynet" IN {
                type slave;
                file "mydomain.mynet.slave";
                masters { 223.10.100.1; };
};
zone "100.10.223.in-addr.arpa" IN {
                type slave;
                file "100.10.223.in-addr.arpa.slave";
                masters { 223.10.100.1; };
};


It's too much to explain the format of a zone file. I recommend you to 
buy and read O'Reilly's "DNS and BIND" by Paul Albitz and Cricket Liu 
(ISBN 0-596-00158-4) Here is an example of a zone file:

$TTL 86400
mydomain.mynet.           IN SOA  orion.mydomain.mynet. 
root.mydomain.mynet. (
                                2003040201 ; serial
                                1d       ; refresh
                                1h       ; retry
                                1w      ; expire
                                2h       ; negative cache TTL
                                )
                        NS      orion.mydomain.mynet.
                        NS      orion2.mydomain.mynet.
                        NS      orion3.mydomain.mynet.
                        MX      10 mailserver.mydomain.mynet.
$ORIGIN mydomain.mynet.
orion                      A       223.10.100.1
orion2                    A       223.10.100.2
orion3                    A       223.10.100.3
mailserver             A       223.10.100.4
localhost               A       127.0.0.1

the reverse lookup database file is similar but with PTR records like this:

1   IN PTR orion.mydomain.mynet.

there are many many things not explained yet but I do not intend to 
write a whole book here. Please consult the various documentation 
(O'Reilly's book, Linux' DNS-Howto) for that.

Good luck.

Eric.