Hadoop学习笔记之-使用bind配置DNS实验

使用bind配置DNS实验

一、实验环境:

Red Hat Enterprise Linux Server release 5.6

主机名  IP  系统版本  Host role

hotel01
 192.168.2.111
 OEL5.6
 server

hotel02
 192.168.2.112
 OEL5.6
 client

hotel03
 192.168.2.113
 OEL5.6
 client

…..

配置说明:NDS服务器放在了hotel01(master)节点上,对hotel01、hotel02、hotel03节点的主机名进行解析。

二、安装配置DNS

1.安装bind、caching-nameserver软件包

--因使用的是未注册的OEL版本,所以yum不能在线安装bind软件

--安装下面bind包,如果缺少可以在安装盘上查找并安装

[root@hotel01 ~]# rpm -qa|grep bind

bind-utils-9.3.6-16.P1.el5

ypbind-1.19-12.el5

bind-chroot-9.3.6-16.P1.el5

bind-9.3.6-16.P1.el5

bind-libs-9.3.6-16.P1.el5

bind-libbind-devel-9.3.6-16.P1.el5

bind-devel-9.3.6-16.P1.el5

bind-libs-9.3.6-16.P1.el5

[root@hotel01 ~]# rpm -qa|grep caching-nameserver

caching-nameserver-9.3.6-16.P1.el5

2.修改bind配置文件

BIND的配置文件name.conf还有区域文件都在/var/named/chroot/目录下

配置文件named.conf在/var/named/chroot/etc/下,区域配置文件在/var/named/chroot/var/named/下

1)        修改配置文件named.conf

[root@hotel01 ~]# cd /var/named/chroot/etc

[root@hotel01 etc]# cp -p named.caching-nameserver.conf named.conf

[root@hotel01 etc]# vi named.conf

options {

        listen-on port 53 { any; };--把127.0.0.1改成any

        listen-on-v6 port 53 { ::1; };

        directory      "/var/named";

        dump-file      "/var/named/data/cache_dump.db";

        statistics-file "/var/named/data/named_stats.txt";

        memstatistics-file "/var/named/data/named_mem_stats.txt";

        // Those options should be used 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 {

        match-clients      { any; };--把localhost改成any

        match-destinations { any; };--把localhost改成any

        recursion yes;

        include "/etc/named.rfc1912.zones";

};

2)        修改配置文件named.rfc1912.zones,在文件中添加以下内容

[root@hotel01 etc]# pwd

/var/named/chroot/etc

[root@hotel01 etc]# vi named.rfc1912.zones

zone "licz.com" IN { //这是自己设置的域名

        type master;

        file "licz.com.zone";

        allow-update { none; };

};

zone "2.168.192.in-addr.arpa" IN { //这是反向配置文件

        type master;

        file "2.168.192.in-addr.zone";

        allow-update { none; };

};

3)        创建leonarding.com.zone和2.168.192.in-addr.zon区域文件

[root@hotel01 etc]# cd /var/named

[root@hotel01 named]# cp -p localdomain.zone chroot/var/named/licz.com.zone

[root@hotel01 named]# cp -p named.local chroot/var/named/2.168.192.zone

--修改leonarding.com.zone和2.168.192.in-addr.zon区域文件

[root@hotel01 named]# cd /var/named/chroot/var/named

[root@hotel01 named]# vi licz.com.zone

TTL    86400</p><p>@              IN SOA  localhost root (</p><p>                                        42              ; serial (d. adams)</p><p>                                        3H              ; refresh</p><p>                                        15M            ; retry</p><p>                                        1W              ; expiry</p><p>                                        1D )            ; minimum</p><p>                IN NS          localhost</p><p>//添加下面的正向文件内容</p><p>hotel01 IN A 192.168.2.111</p><p>hotel02 IN A 192.168.2.112</p><p>hotel03 IN A 192.168.2.113</p><p>[root@hotel01 named]# vi 2.168.192.in-addr.zone</p><p>TTL    86400

@      IN      SOA    localhost. root.localhost.  (

                                      1997022700 ; Serial

                                      28800      ; Refresh

                                      14400      ; Retry

                                      3600000    ; Expire

                                      86400 )    ; Minimum

        IN      NS      localhost.

//添加下面的反向向文件内容

111 IN  PTR hotel01.licz.com

112 IN  PTR hotel02.licz.com

113 IN  PTR hotel03.licz.com

4)        修改各节点/etc/resolv.conf文件

[root@hotel01 named]# vi /etc/resolv.conf

nameserver 192.168.2.111

[root@hotel02 named]# vi /etc/resolv.conf

nameserver 192.168.2.111

[root@hotel03 named]# vi /etc/resolv.conf

nameserver 192.168.2.111

3.验证测试

[root@hotel01 etc]# nslookup

> hotel01.licz.com

Server:        192.168.2.111

Address:        192.168.2.111#53

Name:  hotel01.licz.com

Address: 192.168.2.111

> hotel02.licz.com

Server:        192.168.2.111

Address:        192.168.2.111#53

Name:  hotel02.licz.com

Address: 192.168.2.112

> hotel03.licz.com

Server:        192.168.2.111

Address:        192.168.2.111#53

Name:  hotel03.licz.com

Address: 192.168.2.113

[root@hotel01 named]# ping hotel03.licz.com

PING hotel03.licz.com (192.168.2.113) 56(84) bytes of data.

64 bytes from hotel03 (192.168.2.113): icmp_seq=1 ttl=64 time=10.8 ms

64 bytes from hotel03 (192.168.2.113): icmp_seq=2 ttl=64 time=0.360 ms

64 bytes from hotel03 (192.168.2.113): icmp_seq=3 ttl=64 time=0.332 ms

64 bytes from hotel03 (192.168.2.113): icmp_seq=4 ttl=64 time=0.299 ms

64 bytes from hotel03 (192.168.2.113): icmp_seq=5 ttl=64 time=0.306 ms