RedHat 5.4下构建postfix全功能电子邮(一)-环境(软件包、dns准备)

RedHat 5.4下构建postfix全功能电子邮(一)-环境(软件包、dns准备)

一、安装前的准备工作:

 

[root@mail ~]# uname -r

2.6.18-164.el5

准备:关FireWallSeLinux(略)

1.#下载以下软件(这里我将包放在/soft下了)

[root@mail ~]# cd /soft/

[root@mail soft]# ls

courier-authlib-0.62.4.tar.bz2   mysql-5.0.75.tar.gz

DBD-mysql-4.020.tar.gz           mysql-5.0.95-linux-i686-glibc23.tar.gz

DBI-1.616.tar.gz                 perl-rrdtool-1.2.23-1.el5.rf.i386.rpm

dovecot-1.1.4.tar.gz             php-5.4.0alpha1.tar.gz

extmail-1.1.0.tar.gz             php-5.4.0.tar.zip

extmail-1.1.1.tar.gz             postfix-2.8.2.tar.gz

extmail-1.2.tar.gz               python-rrdtool-1.2.23-1.el5.rf.i386.rpm

extman-1.0.1.tar.gz              Readme--?+?.htm

extman-1.1.tar.gz                rrdtool-1.2.23-1.el5.rf.i386.rpm

File-Tail-0.99.3.tar.gz          rrdtool-devel-1.2.23-1.el5.rf.i386.rpm

fp-Linux-i686-ws.tar.gz          ruby-rrdtool-1.2.23-1.el5.rf.i386.rpm

GD-2.46.tar.gz                   squirrelmail-webmail-1.4.22.tar.gz

httpd-2.2.9.tar.gz               tcl-rrdtool-1.2.23-1.el5.rf.i386.rpm

MailScanner-4.84.3-1.rpm.tar.gz  Unix-Syslog-1.1.tar.gz

[root@mail soft]#

软件包的下载地址:

 

2.#修改ip地址为10.20.5.35,修改dns指向为10.20.5.35

[root@mail ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0

# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]

DEVICE=eth0

BOOTPROTO=static

BROADCAST=10.20.5.255

HWADDR=00:0C:29:B7:6C:1C

IPADDR=10.20.5.35

NETMASK=255.255.255.0

NETWORK=10.20.5.0

ONBOOT=yes

[root@mail ~]# service network restart

[root@mail ~]# vim /etc/resolv.conf

nameserver 10.20.5.35

3、安装以下开发所用到的rpm包组:

Development Libraries

Development Tools

Legacy Software Development

X Software Development

#安装方法: yum groupinstall "packge_group_name"

4.构建本地yum服务器(略)

5.安装配置dns服务器:

[root@mail ~]# yum install -y bind bind-chroot caching-nameserver

1.执行(#rpm -ql caching-nameserver)查看named的配置文件

[root@mail ~]# rpm -ql  caching-nameserver

/etc/named.caching-nameserver.conf

/etc/named.conf

/etc/named.rfc1912.zones

/usr/share/doc/caching-nameserver-9.3.6

/usr/share/doc/caching-nameserver-9.3.6/Copyright

/usr/share/doc/caching-nameserver-9.3.6/rfc1912.txt

/var/named/chroot/etc/named.caching-nameserver.conf

/var/named/chroot/etc/named.conf

/var/named/chroot/etc/named.rfc1912.zones

/var/named/chroot/var/named/localdomain.zone

/var/named/chroot/var/named/localhost.zone

/var/named/chroot/var/named/named.broadcast

/var/named/chroot/var/named/named.ca

/var/named/chroot/var/named/named.ip6.local

/var/named/chroot/var/named/named.local

/var/named/chroot/var/named/named.zero

/var/named/localdomain.zone

/var/named/localhost.zone

/var/named/named.broadcast

/var/named/named.ca

/var/named/named.ip6.local

/var/named/named.local

/var/named/named.zero

[root@mail ~]#

2.执行(#vi /etc/named.caching-nameserver.conf )修改DNS的主配置文件

15         listen-on port 53 { any; };

27         allow-query     { any; };

28         allow-query-cache { any; };

37         match-clients      { any; };

38         match-destinations { any; };

3.执行(#vi /etc/named.rfc1912.zones )修改指定区域文件,包括正向区域和反向区域

1)先复制本地的正向区域和反向区域(黑色区域),然后粘贴添加到文件的底部的空白处。

 

4.创建正向区域和反向区域(如下图)

 

5.利用本地域正向区域文件,编辑正向区域文件shuiyong1

1)复制正向区域文件(#cp /var/named/localhost.zone /var/named/chroot/var/named/shuiyong1

2)编辑正向区域文件shuiyong1#vi /var/named/chroot/var/named/shuiyong1

 

6.利用本地域反向区域文件,编辑反向区域文件shuiyong2

1)复制正向区域文件(#cp /var/named/named.local /var/named/chroot/var/named/shuiyong2

2)编辑正向区域文件shuiyong2#vi /var/named/chroot/var/named/shuiyong2

 

7.把正向和反向两个区域文件做个软链接

[root@mail ~]# ln -s /var/named/chroot/var/named/shuiyong1 /var/named/ shuiyong 1

[root@mail ~]# ln -s /var/named/chroot/var/named/ shuiyong 2 /var/named/ shuiyong 2

8.更改shuiyong*文件的属主和属组

#chown named:named /var/named/chroot/var/named/ shuiyong *

9.当配置转换程序(客户端)使用bind域名服务查询主机时,必须告诉转换程序使用哪一个域名服务器,用来完成这项任务的工具就是/etc/resolv.conf文件。
#vi /etc/resolv.conf )增加如下一行:
nameserver 10.20.5.35 /*
指向的是刚配置的DNS服务器*/

10.DNS服务器配置好之后,用下面的命令启动服务器(顺便也关闭一下防火墙):
[root@mail ~]# service named start
[root@mail ~]# service iptables stop

[root@mail ~]# chkconfig named on

[root@mail ~]# service named start

[root@mail ~]# rndc reload

server reload successful

#查看dns解析是否正常

[root@mail ~]#  nslookup pop3.shuiyong.com

[root@mail ~]#  nslookup mail.shuiyong.com

[root@mail ~]#  dig -t mx shuiyong.com

[root@mail ~]#  nslookup 10.20.5.35

6.修改主机名称,并重新启动系统,重启后挂载光盘

[root@junjie named]# vim /etc/sysconfig/network

HOSTNAME=mail.shuiyong.com

[root@junjie named]# init 6

[root@mail ~]# mount /dev/cdrom /mnt/cdrom/

 

 

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