Re: DNS question, maybe

[Jake Morrison <jake_morrison@example.com>]

I used to keep a simple set of DNS files in my back pocket
in case I needed them when setting up a demo on a site.
They are set up to run DNS for a subdomain and redirect
everything else to a primary server for the domain. 

Maybe this will be useful as an example. Feel free to ask
me if you have any questions (not that I am a DNS guru...).

One common cause for confusion is forgetting to increment
the serial number (e.g., 1998021301 below) when you update
the files. 

You might get a copy of "Unix System Administration Handbook, 
3rd ed" by Evi Nemith, et. al. It has a good chapter on 
setting up DNS, and will help with a lot of other little things. 

Regards,
Jake

---- /etc/resolv.conf

search SUB.MYCOMPANY.com MYCOMPANY.com
nameserver 129.179.13.207
nameserver 129.179.17.10
nameserver 129.179.17.11

---- /etc/named.boot
 
; type          domain                  source host/file        backup
file
 
directory       /etc/named.d
;domain         SUB.MYCOMPANY.com
primary         SUB.MYCOMPANY.com       named.hosts
cache           .                       named.ca
primary         13.179.129.IN-ADDR.ARPA named.hosts.rev
primary         0.0.127.IN-ADDR.ARPA    named.local
forwarders 129.179.17.10 129.179.17.11

---- /etc/named.d/named.ca

; Initial cache data for root domain server
;
;.              99999999        IN      NS     
MACHINE.COMPANYNAME.com.
; Prep the cache (hotwire the addresses).
;MACHINE.COMPANYNAME.com. 99999999      IN      A       127.0.0.1
.       99999999        IN      NS      NS.INTERNIC.NET.
;
; Prime the cache, hotwire the addresses
NS.INTERNIC.NET.        99999999        IN      A       198.41.0.4

---- /etc/named.d/named.local
;       reverse localhost, origin is 0.0.127.IN-ADDR.ARPA.
 
@       IN      SOA     MYHOST.SUB.MYDOMAIN.com 
root.MYHOST.SUB.MYDOMAIN.com (
                        1998021301     ; Serial
                        43200   ; Refresh       12 hours
                        10800   ; Retry         3 hours
                        3600000 ; Expire        1000 hours
                        86400 ) ; Minimum       24 hours
        IN      NS      MYHOST.SUB.MYDOMAIN.com.
1       IN      PTR     localhost.MYHOST.SUB.MYDOMAIN.com.
        IN      CNAME   localhost
        IN      CNAME   localhost.

---- /etc/named.d/named.hosts
; Authoritative data for domain
;
@               IN      SOA     SUB.MYCOMPANY.com.
root.SUB.MYCOMPANY.com      (                
                1998021401      ; Serial
                43200   ; Refresh       12 hours
                10800   ; Retry         3 hours
                3600000 ; Expire        1000 hours
                86400 ) ; Minimum       24 hours
                IN      NS      MYHOST.SUB.MYCOMPANY.com.
                IN      A       129.179.13.207
MYHOST          IN      A       129.179.13.207
loghost         IN      CNAME   MYHOST
 
localhost       IN      A       127.0.0.1
 
MYHOST  IN      A       129.179.13.207
loghost         IN      CNAME   MYHOST
 
hosta           IN      A       129.179.13.231
 
; The MX record points to the domain mailserver
hostb           IN      A       129.179.13.111
                IN      MX      10 MYHOST.SUB.MYCOMPANY.com.

---- /etc/named.d/named.hosts.rev

;        Reverse address mapping

@       IN      SOA     SUB.MYCOMPANY.com root.SUB.MYCOMPANY.com (
                                1998021302              ; Serial
                                43200   ; Refresh       12 hours
                                10800   ; Retry         3 hours
                                3600000 ; Expire        1000 hours
                                86400 ) ; Minimum       24 hours
                IN      NS      MYHOST.SUB.MYCOMPANY.com.
207             IN      PTR     MYHOST.SUB.MYCOMPANY.com.
 
231     IN      PTR     hosta.SUB.MYCOMPANY.com.
111     IN      PTR     hostb.SUB.MYCOMPANY.com.




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