Configuring and Managing MPE/iX Internet Services (MPE/iX 6.5)

126 Chapter8
DNS BIND/iX
Data Files
Data Files
The files that the primary nameservers load their zone data from are
called data files or zone files. They are also referred to as db files, short
for database files.
The data files contain resource records that describe the zone. The
resource records describe all the hosts in the zone.
Root Cache Data (Hint File)
Besides your local information, the nameserver also needs to know
where the nameservers for the root domain are. This information must
be retrieved from the Internet host ftp.rs.internic.net.
Explaining DNS Database Files
This is a typical DNS zone.domain file for the domain maxx.net. (Its
name would be zone.maxx.net. It will translate from a host name to its
IP address.)
;
; Addresses for the local domain
maxx.net. IN SOA nova.maxx.net. tyager.nova.maxx.net. (
9602171 ; Serial
36000 ; Refresh every 10 hours
3600 ; Retry after 1 hour
360000 ; Expire after 100 hours
36000 ; Minimum TTL is 10 hours )
; Define name servers
;
maxx.net. IN NS nova.maxx.net.
maxx.net. IN A 204.251.17.241
; Define localhost
;
localhost IN A 127.0.0.1
; Set up hosts
;
maxx IN A 204.251.17.241
IN MX 5 nova.maxx.net.
maxx.net. IN MX 5 nova.maxx.net.
;
; All mail for net delivered to nova
;
;* IN MX 10 nova.maxx.net.
www IN CNAME nova.maxx.net.
ftp IN CNAME nova.maxx.net.