linux dns服务器配置

1、linux dns服务器配置1. 查看服务器上是否安装了dns服务 rpm -qa | bind bind-uti-9.3.6-16.p1.el5 bind-9.3.6-16.p1.el5 rpm -qa | grep name caching-nameserver-9.3.6-16.p1.el5 需要有这几个rpm。 2. 修改配置文件（其实精心的人会发觉次文件为链接文件，详细看下文错误2） /etc/nam.caching-nameserver.conf / named.caching-nameserver.conf / proved by red hat caching-nameserv

2、er package to configure the / isc bind named(8) dns server as a caching only nameserver / (as a localhost dns resolver only). / see /usr/share/doc/bind*/sample/ for ample named configuration s. / do not edit this file - use system-config-bind or an editor / to create named.conf - edits to this file

3、will be lost on / caching-nameserver package upgrade. options listen-on port 53 any; ; listen-on-v6 port 53 :1; ; directory "/var/named" mp-file "/var/named/data/cache_.db" istics-file "/var/named/data/named_stats.txt" memstatistics-file "/var/named/data/named_mem_

4、stats.txt" / those options should be u carefully because they disable port / randomization / query-source port 53; / query-source-v6 port 53; allow-query any; ; allow-query-cache any; ; logging channel default_debug file "data/named.run" severity dynamic; ; view localhost_resolver mat

5、ch-clients any; ; match-destinations any; ; recursion yes; ilude "/etc/named.rfc1912.zones" 把以上的localhost和都改成any，假如不改他只能让主机来拜访。 3. 在/etc/named.rfc1912.zones文件中添加一些东西 cat /etc/named.rfc1912.zones / named.rfc1912.zones: / provided by red hat caching-nameserver package / isc bind nam

6、ed zone configuration for zones recommended by / rfc 1912 section 4.1 : localhost tlds and aress zones / see /usr/share/doc/bind*/sample/ for example named configuration files. zone "." in type hint; file "named.ca" zone "localdomain" in type master; file "localdom

7、ain.zone" allow-up none; ; zone "localhost" in type master; file "localhost.zone" allow-update none; ; zone "0.0.127." in type master; file "named.local" allow-update none; ; zone ".......0

8、.0.0." in type master; file "named.ip6.local" allow-update none; ; zone "255." in type master; file "named.broadcast" allow-update none; ; zone "0." in type master; file "named.zero" allow-update none; ; zone &quo

9、t;" in type master; file "baidu.zheng" 红色部分为添加的，意图为正向解析 4. 上面添加的baidu.zheng文件应当在/var/named下面配置，进入名目执行 named.zero baidu.zheng，其实这个名目下面应当是链接文件，真正的文件是放在/var/named/chroot/var/named下面，copy后baidu.zheng为正确的链接文件就对了，否则需要到/var/named/chroot/var/named名目下面创建，然后修改baidu.zheng文件 cat /var/named/baidu.

10、zheng $ttl 86400 in soa localhost. root.localhost. ( 42 ; serial (d. adams) 3h ; refresh 15m ; rey 1w ; expiry 1d ) ; minimum in ns . dns in a 19 www in a 15 后面有注释，a即address localhost.localdomain为我的主机名，主机名可以在/etc/sysconfig/network下面修改，注销后生效 5. 重启dns使之生效，service named restart。 6

11、. 测试： nsup ; got recursion not available from , trying next server server: address: 53 name: address: 20 nslookup server: address: 53 non-authoritative answer: canonical name = . name: address: 05 name: address: 61.135.

12、169.125 这里的错误缘由是本机的dns没有更改还是用的局域网内的dns，更改dns再测试，下文的错误3，有详细说明。 修改后测试 nslookup server: 19 address: 1953 name: address: 19 nslookup server: 19 address: 1953 name: address: 15 7. 配置反向解析在/etc/named.rfc1912.zones文件下面添加以下行 zone "247.10.

13、10." in type master; file "baidu.fan" 我的ip是10.10.247网段的，所以黄色部分应当那样写，ip倒过来写 8. 拷贝文件cp /var/named/baidu.zheng /var/named/baidu.fan，假如拷贝后为链接文件就是对的，否则应当拷贝到/var/named/chroot/var/named，然后修改baidu.fan文件： cat baidu.fan $ttl 86400 in soa localhost. root.localhost. ( 1997022700 ; ser

14、ial 28800 ; refresh 14400 ; retry 3600000 ; expire 86400 ) ; minimum in ns . 119 in ptr . 115 in ptr . 红色部分为修改文件，前面的119 115为ip最后一位 9. 重启dns使之生效service named restart,然后执行指令nslookup 19， nslookup 19 server: 19 address: 1953 0. name = .

15、 nslookup 15 server: 19 address: 1953 0. name = . service named restart 停止 named：确定 启动 named： named配置错误：: zone localdomain/in: loaded serial 42 zone localhost/in: loaded serial 42 zone 0.0.127./in: loaded serial 1997022700 zone 0.0

16、........0./in: loaded serial 1997022700 zone 255./in: loaded serial 42 zone 0./in: loaded serial 42 dns_rdata_fromtext: baidu.zheng:9: near '19.': bad dotted quad dns_rdata_fromtext: baidu.zheng:10: n

17、ear '15.': bad dotted quad zone loading master file baidu.zheng: bad dotted quad localhost_resolver/ bad dotted quad 配置正向解析的时候有这个报错，后来反复测试发觉在baidu.zheng文件中应当注重： cat baidu.zheng $ttl 86400 in soa localhost. root.localhost. ( 42 ; serial (d. adams) 3h ; refresh 15m ; retry 1w ; expi

18、ry 1d ) ; minimum in ns . dns in a 19. www in a 15. 在ip后面的.应当去掉，做事情应当仔细。 报错2.启动失败提醒找不到文件*，一定要认准真正的名目在哪里，我这就犯了个这个问题，其实默认应当是在/var/named/下面创建向上文说的baidu.zheng、baidu.fan，但是精心的人会发觉ll看一下 总计 52 drwxr-x- 6 root named 4096 02-14 22:28 chroot drwxrwx- 2 named named 4096 2011-02-23 data lr

19、wxrwxrwx 1 root named 45 2011-11-20 localdomain.zone - /var/named/chroot/var/named/localdomain.zone lrwxrwxrwx 1 root named 43 2011-11-20 localhost.zone - /var/named/chroot/var/named/localhost.zone lrwxrwxrwx 1 root named 44 2011-11-20 named.broadcast - /var/named/chroot/var/named/named.broadcast lr

20、wxrwxrwx 1 root named 37 2011-11-20 named.ca - /var/named/chroot/var/named/named.ca lrwxrwxrwx 1 root named 44 2011-11-20 named.ip6.local - /var/named/chroot/var/named/named.ip6.local lrwxrwxrwx 1 root named 40 2011-11-20 named.local - /var/named/chroot/var/named/named.local lrwxrwxrwx 1 root named 39 2011-11-20 named.zero - /var/named/chroot/var/named/named.zero drwxrwx- 2 named named 4096 2011-02-23 slaves 文件都是链接文件，真正的文件在/var/named/chroot/var/named下面，在这个名目先买年创建文件，可以正常启动，不知道为什么都是链接文件，大概是我安装了rpm包然后卸载又重新安装的缘