named.star(4) — File Formats
NAME
named.star − Defines data used by named to initialize the BIND (Berkeley Internet Name Domain) name server file
SYNOPSIS
/etc/named.∗
DESCRIPTION
The data files referenced in the named.conf file can have any names, but they are generally given names of the form /etc/named.∗. This naming convention is used for convenience in maintaining the named daemon’s file.
The records in the named data files are called resource records. Except for comments (starting with a ; (semicolon) and continuing to the end of the line), the resource records in the data files generally follow the format of the resource records that the named daemon returns in response to queries from resolver routines.
The named.conf file is the default configuration (or boot) file for the named server. The named daemon reads the start-up file when the named daemon starts and when receiving the signal SIGHUP.
EXAMPLES
1.The following examples portray two domains on two different networks:
Domain
abc.aus.osf.com,
Internet address 192.9.201.n
(where n varies for each system on the network)
Domain
xyz.aus.osf.com,
Internet address 128.114.100.n
(where n varies for each system on the network)
In this sample configuration, both the primary and the secondary name servers are in the abc.aus.osf.com domain, and host hera is the gateway host.
2.The following are sample entries in a named.ca file:
; root name servers.
1 IN NS relay.osf.com.
relay.osf.com. 3600000 IN A 129.114.1.2
3.The following two files are sample entries from the named.data files for hosts venus and allen. (The data files can have any name you choose, as long as that name is defined in the named.boot file. In this case, the names are named.abcdata and named.xyzdata.)
The named file for host venus is in the following file, called named.abcdata:
;OWNER TTL CLASS TYPE RDATA
;local domain server is venus
@ IN SOA venus bob.robert.abc.aus.osf.com. (
1.1 ;serial
3600 ;refresh
600 ;retry
3600000 ;expire
86400) ;minimum
IN NS venus
IN NS kronos
IN MX 10 venus.abc.aus.osf.com.
; address for local loopback
localhost IN A 127.1
; address of machines in the same domain
venus IN A 192.9.201.1
venus IN A 128.114.100.1
venus IN MX 10 venus.abc.aus.osf.com.
veabc IN CNAME venus
IN WKS 192.9.201.1 udp (tftp
nameserver domain)
IN WKS 192.9.201.1 tcp (echo telnet
smtp discard uucp-path systat
daytime netstat chargen ftp
time whois finger hostnames
domain)
; delimiter for WKS
kronos IN A 192.9.201.2
krabc IN CNAME kronos
hera IN A 192.9.201.5
IN A 128.114.100.5
robert IN A 192.9.201.6
ernie IN A 192.9.201.7
IN HINFO HP-800 OS1
robert.abc.aus.osf.com. IN MX 10 venus.abc.aus.osf.com.
The named file for host allen is in the following file, called named.xyzdata:
;OWNER TTL CLASS TYPE RDATA
;local domain server is venus
xyz.aus.osf.com. IN SOA venus.abc.aus.osf.com. bob.robe
rt.abc.aus.osf.com. (
1.1 ;serial
3600 ;refresh
600 ;retry
3600000 ;expire
86400) ;minimum
xyz.aus.osf.com. IN NS venus.abc.aus.osf.com.
IN NS kronos.abc.aus.osf.com.
IN MX 10 venus.abc.aus.osf.com.
; address for local loopback
localhost IN A 127.1
; address of machines in the same domain
allen IN A 128.114.100.3
allen IN MX 10 venus.abc.aus.osf.com.
alxyz IN CNAME allen
IN WKS 128.114.100.3 udp (tftp
nameserver domain)
IN WKS 128.114.100.3 tcp (echo telnet
smtp discard uucp-path systat
daytime netstat chargen ftp
time whois finger hostnames
domain)
; delimiter for WKS
fred IN A 128.114.100.10
mike IN A 128.114.100.11
IN HINFO HP-800 OS1
4.The following is a sample named.local file that might appear on hosts in either of the sample domains:
@ IN SOA venus.abc.aus.osf.com. gail.zeus.abc.aus.osf.com.
(
1.1 ;serial
3600 ;refresh
600 ;retry
3600000 ;expire
86400) ;minimum
IN NS venus.abc.aus.osf.com.
1 IN PTR localhost.
5.The following two files are sample entries from the named.rev files for hosts venus and allen. For this example, the files are called named.abcrev and named.xyzrev.
The reverse file for host venus is in the following file, called named.abcrev:
@ IN SOA venus.abc.aus.osf.com. bob.robert.abc.aus.osf.com.
(
1.1 ;serial
3600 ;refresh
600 ;retry
3600000 ;expire
86400) ;minimum
9.201.192.in-addr.arpa. IN NS venus.abc.aus.osf.com.
IN NS kronos.abc.aus.osf.com.
IN PTR hera.abc.aus.osf.com.
;ABC.AUS.OSF.COM Hosts
1.201.9.192.in-addr.arpa. IN PTR venus.abc.aus.osf.com.
2.201.9.192.in-addr.arpa. IN PTR kronos.abc.aus.osf.com.
5.201.9.192.in-addr.arpa. IN PTR hera.abc.aus.osf.com.
6.201.9.192.in-addr.arpa. IN PTR robert.abc.aus.osf.com.
7.201.9.192.in-addr.arpa. IN PTR ernie.abc.aus.osf.com.
The reverse file for host allen is in the following file, called named.xyzrev:
@ IN SOA venus.abc.aus.osf.com. bob.robert.abc.aus.osf.com.
(
1.1 ;serial
3600 ;refresh
600 ;retry
3600000 ;expire
86400) ;minimum
100.114.128.in-addr.arpa. IN NS venus.abc.aus.osf.com.
IN NS kronos.abc.aus.osf.com.
IN PTR hera.abc.aus.osf.com.
;XYZ.AUS.OSF.COM Hosts
3.100.114.128.in-addr.arpa. IN PTR allen.abc.aus.osf.com.
10.100.114.128.in-addr.arpa. IN PTR fred.abc.aus.osf.com.
11.100.114.128.in-addr.arpa. IN PTR mike.abc.aus.osf.com.
;ABC.AUS.OSF.COM Hosts
1.100.114.128.in-addr.arpa. IN PTR venus.abc.aus.osf.com.
5.100.114.128.in-addr.arpa. IN PTR hera.abc.aus.osf.com.
RELATED INFORMATION
Daemon: named(8).