配置 DNS 辅助域名服务器和子域名服务器

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.

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

$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

$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.

$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

$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.

#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. >

#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.