Linux下配置DNS服务器及nslookup的一些命令
rganizati
|
1#
rganizati 发表于 2007-09-05 01:03
Linux下配置DNS服务器及nslookup的一些命令
有两台邮件服务器分别为192.168.1.1(windows下主机名为b.test.cn)和192.168.1.3(linux下主机名为a.test.com)。
在linux下配置DNS服务器,下面是配置过程中设置过的一些文件, /etc/hosts 文件的具体内容如下: # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost fc4 192.168.1.3 a.test.com a 192.168.1.1 b.test.cn b /etc/host.conf 文件: order hosts,bind 表示先用hosts文件做解析,在用DNS解析 /etc/resolv.conf 文件: ; generated by NetworkManager, do not edit! search test.com nameserver 127.0.0.1 search test.cn nameserver 192.168.1.1 nameserver 61.144.56.100 /etc/named.conf 文件: // // named.conf for Red Hat caching-nameserver // options { directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; /* * If there is a firewall between you and nameservers you want * to talk to, you might need to uncomment the query-source * directive below. Previous versions of BIND always asked * questions using port 53, but BIND 8.1 uses an unprivileged * port by default. */ // query-source address * port 53; }; // // a caching only nameserver config // controls { inet 127.0.0.1 allow { localhost; } keys { rndckey; }; }; zone "." IN { type hint; file "named.ca"; }; zone "test.com"IN { type master; file "test.com"; allow-update { none; }; }; zone "1.168.192.in-addr.arpa"IN { type master; file "192.168.1.rev"; allow-update { none; }; }; zone "test.cn"IN { type master; file "test.cn"; allow-update { none; }; }; zone "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" IN { type master; file "named.ip6.local"; allow-update { none; }; }; zone "255.in-addr.arpa" IN { type master; file "named.broadcast"; allow-update { none; }; }; zone "0.in-addr.arpa" IN { type master; file "named.zero"; allow-update { none; }; }; include "/etc/rndc.key"; 在/var/name/test.com 文件下: $TTL 86400 @ IN SOA a.test.com. root.a.test.com ( 42 ; serial (d. adams) 3H ; refresh 15M ; retry 1W ; expiry 1D ) ; minimum IN NS a.test.com. IN MX 10 mail.test.com. a IN A 192.168.1.3 mail IN A 192.168.1.3 //其中root.a.test.com的含义是管理员的邮箱 /var/name/test.cn 文件下: $TTL 86400 @ IN SOA b.test.cn. root.a.test.com ( 42 ; serial (d. adams) 3H ; refresh 15M ; retry 1W ; expiry 1D ) ; minimum IN NS b.test.cn. IN MX 10 mail.test.cn. b IN A 192.168.1.1 mail IN A 192.168.1.1 /var/name/192.168.1.rev 文件下: $TTL 86400 @ IN SOA 1.168.192.in-addr.arpa. root.test.com. ( 1997022700 ; Serial 28800 ; Refresh 14400 ; Retry 3600000 ; Expire 86400 ) ; Minimum IN NS a.test.com. IN NS b.test.cn. IN MX 10 mail.test.com. IN MX 10 mail.test.cn. 3 IN PTR a.test.com. 3 IN PTR mail.test.com. 1 IN PTR b.test.cn. 1 IN PTR mail.test.cn. 然后用/etc/init.d/named restart重启DNS服务,在重启过程中,我曾经出现过好几次的错误,按照出错的提示,会提示是named.conf文件第几行出错的。或者提示在那些包含文件例如test.cn这些文件里面的问题,然后一个一个排除。 最后还有一些nslookup的命令比较有用: set all用于显示使用nslookup工具这台机器上的DNS服务器的一些信息 set type=any会显示完整信息包括域中邮件服务器和主从DNS服务器的名字和IP地址 server 192.168.0.1更换查询的DNS服务器地址。 |