RedHat Linux AS 5.3 下DNS的配置步骤----为学习Oracle网络管理埋下伏笔

转载请注明出处：/article/1630139.html

RedHat Linux AS 5.3 下DNS的配置与RedHat Linux AS 4.5的有很多地方不太一样，这里我把在RedHat Linux AS 5.3 下DNS配置步骤做了一个笔记，操作如下：
一、检查BIND包，缺少bind、bind-chroot包



二、利用YUM源，安装BIND包
1、 配YUM源
[root@mydb ~]# mount /dev/cdrom /mnt

mount: block device /dev/cdrom is write-protected, mounting read-only

[root@mydb ~]# vi/etc/yum.repos.d/update.repo

[update]
name=update
baseurl=file:///mnt/Server
gpgcheck=0
enabled = 1

2、 安装bind包
[root@mydb ~]# yum list
[root@mydb~]# yum install bind

Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package bind.x86_64 30:9.3.4-10.P1.el5 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

==========================================================================================================================
 Package                 Arch                      Version                                Repository                 Size
==========================================================================================================================
Installing:
 bind                    x86_64                    30:9.3.4-10.P1.el5                     update                    961 k

Transaction Summary
==========================================================================================================================
Install      1 Package(s)         
Update       0 Package(s)         
Remove       0 Package(s)         

Total download size: 961 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : bind                                              [1/1] 

Installed: bind.x86_64 30:9.3.4-10.P1.el5
Complete!

[root@mydb~]# yum install bind-chroot

Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package bind-chroot.x86_64 30:9.3.4-10.P1.el5 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

==========================================================================================================================
 Package                      Arch                    Version                               Repository               Size
==========================================================================================================================
Installing:
 bind-chroot                  x86_64                  30:9.3.4-10.P1.el5                    update                   42 k

Transaction Summary
==========================================================================================================================
Install      1 Package(s)         
Update       0 Package(s)         
Remove       0 Package(s)         

Total download size: 42 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : bind-chroot                                       [1/1] 

Installed: bind-chroot.x86_64 30:9.3.4-10.P1.el5
Complete!

3、 检查安装的BIND包，Ok了！



[root@mydb ~]# service named status
rndc: connect failed: 127.0.0.1#953: connection refused
named is stopped
说明DNS没有配好，接下来就开始配置DNS。

三、配置DNS
1、 安装caching-nameserver
[root@mydb~]# yum install caching-nameserver

Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package caching-nameserver.x86_64 30:9.3.4-10.P1.el5 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

==========================================================================================================================
 Package                            Arch                   Version                             Repository            Size
==========================================================================================================================
Installing:
 caching-nameserver                 x86_64                 30:9.3.4-10.P1.el5                  base                  58 k

Transaction Summary
==========================================================================================================================
Install      1 Package(s)         
Update       0 Package(s)         
Remove       0 Package(s)         

Total download size: 58 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : caching-nameserver                                [1/1] 

Installed: caching-nameserver.x86_64 30:9.3.4-10.P1.el5
Complete!

2、 安装完成会在/etc/下生成named.caching-nameserver.conf，查看其内容如下：
[root@mydb~]# cat /etc/named.caching-nameserver.conf

//
// named.caching-nameserver.conf
//
// Provided by Red Hat caching-nameserver 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 example named configuration files.
//
// DO NOT EDIT THIS FILE - use system-config-bind or an editor
// to create named.conf - edits to this file will be lost on 
// caching-nameserver package upgrade.
//
options {
        listen-on port 53 { 127.0.0.1; };
        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     { localhost; };
};
logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};
view localhost_resolver {
        match-clients      { localhost; };
        match-destinations { localhost; };
        recursion yes;
        include "/etc/named.rfc1912.zones";
};

3、拷贝/etc/named.caching-nameserver.conf到/var/named/chroot/etc/named.conf
[root@mydb ~]# cp /etc/named.caching-nameserver.conf /var/named/chroot/etc/named.conf

4、 编辑/var/named/chroot/etc/named.conf
[root@mydb ~]# vi/var/named/chroot/etc/named.conf

options {
        listen-on port 53 { 0.0.0.0/0; };
        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      { localhost; };
#       match-destinations { localhost; };
#       recursion yes;
#       include "/etc/named.rfc1912.zones";
#};
#
# ----添加以下这一段
zone "example.com."{
         type master;
         file "example.file";
};

5、 修改named.conf权限
[root@mydb~]# cd /var/named/chroot/etc/
[root@mydbetc]# ll
total 20
-rw-r--r--1 root root 405 Sep 26 22:10 localtime
-rw-r-----1 root named 1195 Jan 6 2009 named.caching-nameserver.conf
-rw-r-----1 root root 1371 Nov 27 10:19 named.conf
-rw-r-----1 root named 955 Jan 6 2009named.rfc1912.zones
-rw-r-----1 root named 113 Nov 27 09:53 rndc.key
[root@mydbetc]# chown .named named.conf
[root@mydbetc]# ll
total 20
-rw-r--r--1 root root 405 Sep 26 22:10 localtime
-rw-r-----1 root named 1195 Jan 6 2009 named.caching-nameserver.conf
-rw-r-----1 root named 1371 Nov 27 10:19 named.conf
-rw-r-----1 root named 955 Jan 6 2009named.rfc1912.zones
-rw-r----- 1 root named 113 Nov 27 09:53 rndc.key


6、 配域名
root@mydbnamed]# pwd
/var/named/chroot/var/named
[root@mydbnamed]# ls -l
total 36
drwxrwx---2 named named 4096 Aug 26 2004 data
-rw-r-----1 root named 198 Jan 6 2009 localdomain.zone
-rw-r-----1 root named 195 Jan 6 2009 localhost.zone
-rw-r-----1 root named 427 Jan 6 2009 named.broadcast
-rw-r-----1 root named 1892 Jan 6 2009named.ca
-rw-r-----1 root named 424 Jan 6 2009 named.ip6.local
-rw-r-----1 root named 426 Jan 6 2009 named.local
-rw-r-----1 root named 427 Jan 6 2009 named.zero
drwxrwx--- 2 named named 4096 Jul 27 2004 slaves

[root@mydb named]# cplocaldomain.zone example.file

7、 编辑example.file
[root@mydb named]# vi /var/named/chroot/var/named/example.file

$TTL    86400
@               IN SOA  guoyjoe.example.com. root (
                                        42              ; serial (d. adams)
                                        3H              ; refresh
                                        15M             ; retry
                                        1W              ; expiry
                                        1D )            ; minimum
                IN NS           guoyjoe.example.com
guoyjoe         IN A            192.168.153.129
mydb            IN A            192.168.153.129

四、启动DNS服务
[root@mydbnamed]# service named restart
Stoppingnamed: [ OK ]
Starting named: [ OK ]

五、客户端的DNS指定
[root@mydb ~]# more /etc/resolv.conf
; generated by /sbin/dhclient-script
search localdomain
nameserver 192.168.153.129