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分类: 系统运维

2008-03-22 22:58:10

来源:赛迪网    作者:kid

一、规划说明:

主机A: 双网卡

192.168.1.7 --> mydomain.org主域名服务器

192.168.10.7 --> myzone.org主域名服务器,其有两个子域,为market.myzone.org和develog.myzone.org

主机B:双网卡

192.168.1.6 --> mydomain.org辅助域名服务器

192.168.10.6 --> market.myzone.org子域名服务器

两台服务器均有DNS独立的日志,用以记录查询(query_logs)记录和错误(err_logs)记录,以便于DNS后期管理;本文不过多涉及安全方面的问题。

安装过程请参照另一篇文章“Bind 9.4.0rc2安装笔记(一步步学习配置简易DNS)”。

二、主机A:

1. 主配置文件/etc/named.conf

options {
        directory "/var/named/";
        version "0.0.0";
};

logging {
        channel dns_errors
        { file "/var/log/named/err_logs" versions 3 size 10m;
        severity error;
        print-category yes;
        print-severity yes;
        print-time yes;
        };
        channel dns_queries
        { file "/var/log/named/query_logs" versions 3 size 10m;
        severity info;
        print-category yes;
        print-severity yes;
        print-time yes;
        };
        category default { dns_errors; };
        category queries { dns_queries; };
};


zone  "." { 
        type hint; 
        file  "named.ca";
};

zone "localhost" {
        type master;
        file "named.local";
};

zone "0.0.127.IN-addr.arpa" {
        type master;
        file "named.rev";
};

zone "mydomain.org" {
        type master;
        file "mydomain.org.zone";
        allow-transfer { 192.168.1.6/32; };
};

zone "myzone.org" {
        type master;
        file "myzone.org.zone";
        allow-transfer { 192.168.10.0/24; };
};

zone "10.168.192.in-addr.arpa" {
        type master;
        file "192.168.10.zone";
        allow-transfer { 192.168.10.0/24; };
};

zone "1.168.192.in-addr.arpa" {
        type master;
        file "192.168.1.zone";
        allow-transfer { 192.168.1.6/32; };
};

key "rndc-key" {
        algorithm hmac-md5;
        secret "oKLRLl8BolNj883OX1YcxQ==";
};

controls {
        inet 127.0.0.1 port 953
                allow { 127.0.0.1; } keys { "rndc-key"; };
};
# End of named.conf

2.域mydomain.org的正向解析文件/var/named/mydomain.org.zone

$TTL 1D
$ORIGIN mydomain.org.
@       1D      IN      SOA     mydomain.org.   root.mail.mydomain.org. ( 
                        20070301
                        1H
                        15M
                        1W
                        1D )
                IN      NS      ns.mydomain.org.
                IN      MX 10   mail.mydomain.org.
mydomain.org.   IN      A       192.168.1.7      #泛域名解析
ns              IN      A       192.168.1.7
mail            IN      A       192.168.1.100
www             IN      CNAME   mail
ftp             IN      CNAME   mail

3.域mydomain.org的反向解析文件/var/named/192.168.1.zone

$TTL 1D
@       1D      IN      SOA     mydomain.org.   root.mail.mydomain.org. ( 
                        20070301
                        1H
                        15M
                        1W
                        1D )
                IN      NS      ns.mydomain.org.
7               IN      PTR     marion.org.
7               IN      PTR     ns.mydomain.org.
100             IN      PTR     mail.mydomain.org.

4.域myzone.org的正向解析文件/var/named/myzone.org.zone

# more /var/named/myzone.org.zone 
$TTL 1D
$ORIGIN myzone.org.
@       1D      IN      SOA     myzone.org.     root.mail.myzone.org. ( 
                        20070301
                        1H
                        15M
                        1W
                        1D )
                IN      NS      ns.myzone.org.
                IN      MX 10   mail.myzone.org.
myzone.org.     IN      A       192.168.10.7
ns              IN      A       192.168.10.7
mail            IN      A       192.168.10.5
www             IN      CNAME   mail
ftp             IN      CNAME   mail

market          IN      NS      ns.market          #指明授权的子域market
ns.market       IN      A       192.168.10.6

$ORIGIN develop.myzone.org.      #指明授权的子域develop,和上一种方法稍有不同.

                IN      NS      ns.develop.myzone.org.  
ns              IN      A       192.168.10.2

5.域myzone.org的反向解析文件/var/named/192.168.10.zone

$TTL 1D
@       1D      IN      SOA     myzone.org.     root.mail.myzone.org. ( 
                        20070301
                        1H
                        15M
                        1W
                        1D )
                IN      NS      ns.myzone.org.
6               IN      PTR     ns.market.myzone.org
2               IN      PTR     ns.develop.myzone.org
7               IN      PTR     ns.myzone.org.
5               IN      PTR     mail.myzone.org. 
7               IN      PTR     myzone.org.
 

三、主机B:

1.named主配置文件/etc/named.conf

options {
        directory "/var/named/";
        version "unknown";
        forwarders { 192.168.1.7; };
};

logging {
        channel dns_errors
        { file "/var/log/named/err_logs" versions 3 size 10m;
        severity error;
        print-category yes;
        print-severity yes;
        print-time yes;
        };
        channel dns_queries
        { file "/var/log/named/query_logs" versions 3 size 10m;
        severity info;
        print-category yes;
        print-severity yes;
        print-time yes;
        };
        category default { dns_errors; };
        category queries { dns_queries; };
};

zone  "." { 
        type hint; 
        file  "named.ca";
};

zone "localhost" {
        type master;
        file "named.local";
};

zone "0.0.127.IN-addr.arpa" {
        type master;
        file "named.rev";
};

zone "mydomain.org" {
        type slave;
        file "mydomain.org.zone";
        masters { 192.168.1.7; };
};

zone "1.168.192.in-addr.arpa" {
        type slave;
        file "192.168.1.zone";
        masters { 192.168.1.7; };
};

zone "market.myzone.org" {
        type master;
        file "market.myzone.org.zone";
};

zone "10.168.192.in-addr.arpa" {
        type master;
        file "192.168.10.zone";
};

key "rndc-key" {
        algorithm hmac-md5;
        secret "NiBZCqWP0IsvMPuZpUKdog==";
};

controls {
        inet 127.0.0.1 port 953
                allow { 127.0.0.1; } keys { "rndc-key"; };
};
# End of named.conf

2.子域market.myzone.org的正向解析文件/var/named/market.myzone.org.zone

$TTL 1D
$ORIGIN market.myzone.org.
@       1D      IN      SOA     market.myzone.org.      root.mail.market.myzone.org. ( 
                        20070301
                        1H
                        15M
                        1W
                        1D )
                IN      NS      ns.market.myzone.org.
                IN      MX 10   mail.market.myzone.org.
market.myzone.org.      IN      A       192.168.10.6
ns              IN      A       192.168.10.6
mail            IN      A       192.168.10.100
www             IN      CNAME   mail

3.子域market.myzone.org的反向解析文件/var/named/192.168.10.zone

$TTL 1D
@       1D      IN      SOA     myzone.org.     root.mail.myzone.org. ( 
                        20070301
                        1H
                        15M
                        1W
                        1D )
                IN      NS      ns.myzone.org.
6               IN      PTR     ns.myzone.org.
100             IN      PTR     mail.myzone.org.

注:辅助域的解析文件将会由区域传送获得,不需要手动建立。如果你想要反复尝试区域传送的效果,请将TTL值改小。本机的如下所示:

4.域mydomain.org的正向解析文件/var/named/mydomain.org.zone

$ORIGIN .
$TTL 86400      ; 1 day
mydomain.org            IN SOA  mydomain.org. root.mail.mydomain.org. (
                                20070301   ; serial
                                3600       ; refresh (1 hour)
                                900        ; retry (15 minutes)
                                604800     ; expire (1 week)
                                86400      ; minimum (1 day)
                                )
                        NS      ns.mydomain.org.
                        A       192.168.1.7
                        MX      10 mail.mydomain.org.
$ORIGIN mydomain.org.
ftp                     CNAME   mail
mail                    A       192.168.1.100
ns                      A       192.168.1.7
www                     CNAME   mail

5.域mydomain.org的反向解析文件/var/named/192.168.1.zone

$ORIGIN .
$TTL 86400      ; 1 day
1.168.192.in-addr.arpa  IN SOA  mydomain.org. root.mail.mydomain.org. (
                                20070301   ; serial
                                3600       ; refresh (1 hour)
                                900        ; retry (15 minutes)
                                604800     ; expire (1 week)
                                86400      ; minimum (1 day)
                                )
                        NS      ns.mydomain.org.
$ORIGIN 1.168.192.in-addr.arpa.
100                     PTR     mail.mydomain.org.
7                       PTR     marion.org.
                        PTR     ns.mydomain.org.

四:测试结果

1.主机A:

#nslookup
> set type=NS
> market.myzone.org
Server:         127.0.0.1
Address:        127.0.0.1#53

Non-authoritative answer:
market.myzone.org       nameserver = ns.market.myzone.org.

Authoritative answers can be found from:
ns.market.myzone.org    internet address = 192.168.10.6
> myzone.org
Server:         127.0.0.1
Address:        127.0.0.1#53

myzone.org      nameserver = ns.myzone.org.
> mydomain.org
Server:         127.0.0.1
Address:        127.0.0.1#53

mydomain.org    nameserver = ns.mydomain.org.
>

2.主机B:

#nslookup
> set type=NS
> mydomain.org
Server:         127.0.0.1
Address:        127.0.0.1#53

mydomain.org    nameserver = ns.mydomain.org.
> myzone.org
Server:         127.0.0.1
Address:        127.0.0.1#53

Non-authoritative answer:
myzone.org      nameserver = ns.myzone.org.

Authoritative answers can be found from:
ns.myzone.org   internet address = 192.168.10.7
> market.myzone.org
Server:         127.0.0.1
Address:        127.0.0.1#53

market.myzone.org       nameserver = ns.market.myzone.org.
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