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CNAME'ing www to localhost seems to be useless, reCNAME it to '@' and describe

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specifically.

<programlisting> tags do not grok tabs. Fix this at least in zone files where
they look especially ugly.
This commit is contained in:
Dmitry Morozovsky 2006-06-25 07:08:13 +00:00
parent 7a1a8437fd
commit 6305033db4
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=28157
1 changed files with 44 additions and 37 deletions
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81
en_US.ISO8859-1/books/handbook/network-servers/chapter.sgml
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@ -3440,34 +3440,34 @@ zone "1.168.192.in-addr.arpa" {
<filename>/etc/namedb/master/example.org</filename>) is as
follows:</para>
<programlisting>&dollar;TTL 3600 ; 1 hour
example.org. IN SOA ns1.example.org. admin.example.org. (
2006051501 ; Serial
10800 ; Refresh
3600 ; Retry
604800 ; Expire
86400 ; Minimum TTL
)
<programlisting>&dollar;TTL 3600 ; 1 hour
example.org. IN SOA ns1.example.org. admin.example.org. (
2006051501 ; Serial
10800 ; Refresh
3600 ; Retry
604800 ; Expire
86400 ; Minimum TTL
)
; DNS Servers
IN NS ns1.example.org.
IN NS ns2.example.org.
IN NS ns1.example.org.
IN NS ns2.example.org.
; MX Records
IN MX 10 mx.example.org.
IN MX 20 mail.example.org.
IN MX 10 mx.example.org.
IN MX 20 mail.example.org.
IN A 192.168.1.1
IN A 192.168.1.1
; Machine Names
localhost IN A 127.0.0.1
ns1 IN A 192.168.1.2
ns2 IN A 192.168.1.3
mx IN A 192.168.1.4
mail IN A 192.168.1.5
localhost IN A 127.0.0.1
ns1 IN A 192.168.1.2
ns2 IN A 192.168.1.3
mx IN A 192.168.1.4
mail IN A 192.168.1.5
; Aliases
www IN CNAME localhost</programlisting>
www IN CNAME @</programlisting>
<para>
Note that every hostname ending in a <quote>.</quote> is an
@ -3534,7 +3534,7 @@ www IN CNAME localhost</programlisting>
<programlisting>
example.org. IN SOA ns1.example.org. admin.example.org. (
2006051501 ; Serial
2006051501 ; Serial
10800 ; Refresh after 3 hours
3600 ; Retry after 1 hour
604800 ; Expire after 1 week
@ -3593,11 +3593,11 @@ example.org. IN SOA ns1.example.org. admin.example.org. (
</para>
<programlisting>
localhost IN A 127.0.0.1
ns1 IN A 192.168.1.2
ns2 IN A 192.168.1.3
mx IN A 192.168.1.4
mail IN A 192.168.1.5</programlisting>
localhost IN A 127.0.0.1
ns1 IN A 192.168.1.2
ns2 IN A 192.168.1.3
mx IN A 192.168.1.4
mail IN A 192.168.1.5</programlisting>
<para>
The A record indicates machine names. As seen above,
@ -3606,14 +3606,21 @@ mail IN A 192.168.1.5</programlisting>
</para>
<programlisting>
www IN CNAME localhost</programlisting>
IN A 192.168.1.1</programlisting>
<para>This line assigns IP address
<hostid role="ipaddr">192.168.1.1</hostid> to the current origin,
in this case <hostid role="domainname">example.org</hostid>.</para>
<programlisting>
www IN CNAME @</programlisting>
<para>
The canonical name record is usually used for giving aliases
to a machine. In the example, <hostid>www</hostid> is
aliased to the machine known as
<hostid role="domainname">localhost.example.org</hostid>
(<hostid role="ipaddr">127.0.0.1</hostid>).
aliased to the <quote>master</quote> machine which name equals
to domain name <hostid role="domainname">example.org</hostid>
(<hostid role="ipaddr">192.168.1.1</hostid>).
CNAMEs can be used to provide alias
hostnames, or round robin one hostname among multiple
machines.
@ -3652,20 +3659,20 @@ www IN CNAME localhost</programlisting>
<programlisting>$TTL 3600
1.168.192.in-addr.arpa. IN SOA ns1.example.org. admin.example.org. (
2006051501 ; Serial
2006051501 ; Serial
10800 ; Refresh
3600 ; Retry
604800 ; Expire
3600 ) ; Minimum
IN NS ns1.example.org.
IN NS ns2.example.org.
IN NS ns1.example.org.
IN NS ns2.example.org.
1 IN PTR example.org.
2 IN PTR ns1.example.org.
3 IN PTR ns2.example.org.
4 IN PTR mx.example.org.
5 IN PTR mail.example.org.</programlisting>
1 IN PTR example.org.
2 IN PTR ns1.example.org.
3 IN PTR ns2.example.org.
4 IN PTR mx.example.org.
5 IN PTR mail.example.org.</programlisting>
<para>This file gives the proper IP address to hostname
mappings of our above fictitious domain.</para>