Sendmail
简单配置（1）
RHEL5.3
基本网络配置
一、
1
、RHEL5 U3：如图1
（如图1）
2
、#hostname //查看当前主机的主机名：如图2
（如图2）
3
、#vi /etc/sysconfig/network-scripts/ifcfg-eth0 编辑指定网络接口配置文件：如图3
（如图3）
4
、#vi /etc/sysconfig/network 通过配置文件修改主机名：如图4
（如图4）
5
、在终端字符界面修改其字体和中文字体大小：如图5
（如图5）
6
、挂载光盘：如图6
（如图6）
7
、查看OpenSSH是否安装：如图7
（如图7）
8
、
#vi /etc/hosts
设置本地
DNS
解析文件：
如图8
（如图8）
9
、
#vi /etc/resolv.conf
指定当前主机的
DNS
服务器，最多可指定三个：
如图9
（如图9）
10
、关闭iptables防火墙：如图10
（如图10）
二、DNS
简单配置
1
、vim /etc/named.conf
2
、vim /var/named/benet.com.zone
3
、vim /var/named/1.168.192.in-addr.arpa.zone
4
、nslookup
查看
三、sendmail
简单配置
1、
安装
sendmail
root@dns ~]# mount /dev/hdc /mnt/dvd/
mount: block device /dev/hdc is write-protected, mounting read-only
[root@dns ~]# cd /mnt/dvd/Server/
[root@dns Server]# rpm -qa | grep sendmail
sendmail-8.13.8-2.el5
[root@dns Server]# ls sendmail*
sendmail-8.13.8-2.el5.i386.rpm sendmail-devel-8.13.8-2.el5.i386.rpm
sendmail-cf-8.13.8-2.el5.i386.rpm sendmail-doc-8.13.8-2.el5.i386.rpm
[root@dns Server]# rpm -ivh --aid sendmail-cf-8.13.8-2.el5.i386.rpm
warning: sendmail-cf-8.13.8-2.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:sendmail-cf ########################################### [100%]
[root@dns Server]# rpm -ivh --aid sendmail-devel-8.13.8-2.el5.i386.rpm
warning: sendmail-devel-8.13.8-2.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:sendmail-devel ########################################### [100%]
[root@dns Server]# rpm -ivh --aid sendmail-doc-8.13.8-2.el5.i386.rpm
warning: sendmail-doc-8.13.8-2.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:sendmail-doc ########################################### [100%]
[root@dns Server]#
[root@dns Server]# rpm -qa | grep sendmail
sendmail-devel-8.13.8-2.el5
sendmail-doc-8.13.8-2.el5
sendmail-cf-8.13.8-2.el5
sendmail-8.13.8-2.el5
[root@dns Server]# rpm -qa | grep m4
m4-1.4.5-3.el5.1
2
、修改
vim /etc/mail/sendmail.mc
第
116行
将smtp侦听范围从127.0.0.1改为0.0.0.0
第
155行修改成自己域：
LOCAL_DOMAIN(`benet.com')dnl
3
、
使用
m4
命令生成
sendmail.cf
文件
m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
4
、修改local-host-names
文件添加域名及主机名
vim /etc/mail/local-host-names
[root@dns Server]# m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
[root@dns Server]# vim /etc/mail/local-host-names
# local-host-names - include all aliases for your machine here.
benet.com.
mail.benet.com.
~
~
~
"/etc/mail/local-host-names" 3L, 91C 已写入
[root@dns Server]#
5
、安装Dovecot
软件包（POP3
和IMAP
）
[root@dns Server]# rpm -ivh --aid mysql-5.0.45-7.el5.i386.rpm
warning: mysql-5.0.45-7.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
error: Failed dependencies:
perl(DBI) is needed by mysql-5.0.45-7.el5.i386
[root@dns Server]# rpm -ivh --aid perl-DBI-1.52-2.el5.i386.rpm
warning: perl-DBI-1.52-2.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:perl-DBI ########################################### [100%]
[root@dns Server]# rpm -ivh --aid mysql-5.0.45-7.el5.i386.rpm
warning: mysql-5.0.45-7.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:mysql ########################################### [100%]
[root@dns Server]# rpm -ivh --aid dovecot-1.0.7-7.el5.i386.rpm
warning: dovecot-1.0.7-7.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:dovecot ########################################### [100%]
6、启动sendmail和dovecot服务
[root@dns Server]# service sendmail restart
关闭 sm-client： [确定]
关闭 sendmail： [确定]
启动 sendmail： [确定]
启动 sm-client： [确定]
[root@dns Server]# service dovecot restart
停止 Dovecot Imap： [确定]
启动 Dovecot Imap： [确定]
[root@dns Server]#
7
、查看端口netstat
[root@dns Server]# netstat -ntl
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 127.0.0.1:2208 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:688 0.0.0.0:* LISTEN
tcp 0 0 192.168.1.200:53 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:953 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:2207 0.0.0.0:* LISTEN
tcp 0 0 :::993 :::* LISTEN
tcp 0 0 :::995 :::* LISTEN
tcp 0 0 :::110 LISTEN
tcp 0 0 :::143 :::* LISTEN
tcp 0 0 :::22 :::* LISTEN
tcp 0 0 ::1:953 :::* LISTEN
[root@dns Server]# netstat -an | grep 25
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN
udp 0 0 0.0.0.0:52546 0.0.0.0:*
unix 2 [ ] DGRAM 8925
[root@dns Server]# netstat -an | grep 110
tcp 0 0 :::110 LISTEN
[root@dns Server]# netstat -an | grep 143
tcp 0 0 :::143 :::* LISTEN
unix 2 [ ] STREAM CONNECTED 10143 /var/run/setrans/.setrans-unix
8
、验证Sendmail
的SMTP
认证功能telnet localhost 25
[root@dns Server]# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 dns.benet.com ESMTP Sendmail 8.13.8/8.13.8; Sat, 10 Oct 2009 22:15:28 +0800
ehlo localhost
250-dns.benet.com Hello localhost.localdomain [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-DELIVERBY
250 HELP
quit
221 2.0.0 dns.benet.com closing connection
Connection closed by foreign host.
[root@dns Server]# telnet localhost 110
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
+OK Dovecot ready.
quit
+OK Logging out
Connection closed by foreign host.
[root@dns Server]#
telnet mail.benet.com 25
telnet mail.benet.com 110
9
、建立用户
[root@dns Server]#
useradd zhangsan
[root@dns Server]#
passwd zhangsan
Changing password for user zhangsan.
New UNIX password:
BAD PASSWORD: it is based on a dictionary word
Retype new UNIX password:
passwd: all authentication tokens updated successfully.
[root@dns Server]#
useradd lisi
[root@dns Server]#
passwd lisi
Changing password for user lisi.
New UNIX password:
BAD PASSWORD: it is based on a dictionary word
Retype new UNIX password:
passwd: all authentication tokens updated successfully.
[root@dns Server]#
10
、客户端测试
配置文件在附件里面：
如有不懂的地方，请call我！qq：357714938 mail：[email protected]