配置基于RedHat的DNS:

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配置基于RedHat的DNS:
①.Package:系统安装时自带BIND 8.3.3；目前最新的版本为BIND 9.2.2rc1;
②. 配置文件：
/etc/named.conf
/etc/resolv.conf
/var/named/named.ca
/var/named/named.local
/var/named/localhost.zone
③. 以sunyou.com为例，各配置文件内容如下：
/etc/named.conf:
## named.conf - configuration for bind
#
# Generated automatically by bindconf, alchemist et al.
controls {
        inet 127.0.0.1 allow { localhost; } keys { rndckey; };
};
include "/etc/rndc.key";
options {
directory "/var/named/";
};
zone "." {
type hint;
file "named.ca";
};
zone "0.0.127.in-addr.arpa" {
type master;
file "0.0.127.in-addr.arpa.zone";
};
zone "1.168.192.in-addr.arpa" {
type master;
file "1.168.192.in-addr.arpa.zone";
};
zone "localhost" {
type master;
file "localhost.zone";
};
zone "sunyou.com" {
       type master;
       file "sunyou.com.zone";
};
/etc/resolv.conf:
domain sunyou.com
nameserver 192.168.1.45
#cp /var/named/localhost.zone /var/named/sunyou.com.zone
#vi /var/named/sunyou.com.zone,编辑后内容如下：
/var/named/sunyou.com.zone:
$TTL 86400
@ IN SOA 192.168.1.45. root.localhost (
4 ; serial
28800 ; refresh
7200 ; retry
604800 ; expire
86400 ; ttl
)
@ IN NS 192.168.1.45
www IN A 192.168.1.48
mail IN A 192.168.1.49
proxy IN CNAME www ---------其中proxy为www的别名
@ IN MX 5 mail ----------其中MX为邮件记录,@可有可无
1.168.192.in-addr-arpa.zone(PTR记录)
$TTL 86400
@ IN SOA 192.168.1.45. root.localhost (
2 ; serial
28800 ; refresh
7200 ; retry
604800 ; expire
86400 ; ttk
)
@ IN NS 192.168.1.45
48 IN PTR www.sunyou.com.
49 IN PTR mail.sunyou.com.


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