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27-1
1.安装dns
1.1 安装包
[root@mail ~]# yum install bind
[root@mail ~]# yum install bind-chroot –改变dns的路径,保证安全的包
[root@mail ~]# yum install caching-nameserver –y –生成配置文件,提高caching server
[root@mail ~]# yum list all |grep bind
This system is not registered with RHN.
RHN support will be disabled.
bind.i386 30:9.3.4-10.P1.el5 installed
bind-chroot.i386 30:9.3.4-10.P1.el5 installed
bind-libs.i386 30:9.3.4-10.P1.el5 installed
bind-utils.i386 30:9.3.4-10.P1.el5 installed
ypbind.i386 3:1.19-11.el5 installed
1.2 配置
[root@mail ~]# cd /var/named/chroot/etc
[root@mail etc]# cp -p named.caching-nameserver.conf named.conf
[root@mail etc]# vim named.conf
options {
listen-on port 53 { any; };
allow-query { any; };
};
view localhost_resolver {
match-clients { any; };
match-destinations { any; };
include "/etc/named.rfc1912.zones";
}；
1.3声明区域
[root@mail etc]# vim named.rfc1912.zones
zone "bj.com" IN {
type master;
file "bj.com.db";
allow-update { none; };
};
1.4产生数据库文件
[root@mail named]# cp -p localhost.zone bj.com.db
[root@mail named]# vim bj.com.db
$TTL 86400
@ IN SOA ns.bj.com. root.126.com (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS ns.bj.com.
ns IN A 192.168.101.70
mail IN A 192.168.101.70
pop3 IN CNAME mail
smtp IN CNAME mail
imap IN CNAME mail
@ IN MX 10 mail
1.5 dns指向
[root@mail etc]# vim /etc/resolv.conf
#search localdomain
nameserver 192.168.101.70
[root@mail named]# vim /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=mail.bj.com
[root@mail etc]# vim /etc/hosts
127.0.0.1 localhost.localdomain localhost
192.168.101.70 mail.bj.com
--更改主机名
1.6 开启服务 解析
[root@mail named]#
[root@mail named]# service named start
Starting named: [ OK ]
[root@mail named]# chkconfig named on
[root@mail named]# rndc reload
server reload successful
[root@mail etc]# nslookup mail.bj.com
Server: 192.168.101.70
Address: 192.168.101.70#53
Name: mail.bj.com
Address: 192.168.101.70
[root@mail etc]# dig -t mx bj.com
; <<>> DiG 9.3.4-P1 <<>> -t mx bj.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24728
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2
;; QUESTION SECTION:
;bj.com. IN MX
;; ANSWER SECTION:
bj.com. 86400 IN MX 10 mail.bj.com.
;; AUTHORITY SECTION:
bj.com. 86400 IN NS ns.bj.com.
;; ADDITIONAL SECTION:
mail.bj.com. 86400 IN A 192.168.101.70
ns.bj.com. 86400 IN A 192.168.101.70
;; Query time: 1 msec
;; SERVER: 192.168.101.70#53(192.168.101.70)
;; WHEN: Sun Sep 4 16:59:01 2011
;; MSG SIZE rcvd: 94
[root@mail etc]#
2.Sendmail 需要的包
2.1需要安装的包
Sendmail-8.13.8.-2.el5 –主包
Sendmai-cf --生成易配置或快速配置的配置文件
Sendmail-devel --开发包
m4.i386 1.4.5-3.el5.1 --转换工具
--重启m4会自动转换
--sendmail.mc—>sendmail.cf
-- accessaccess.db
[root@mail ~]# yum list all |grep sendmail
This system is not registered with RHN.
RHN support will be disabled.
sendmail.i386 8.13.8-2.el5 installed
sendmail-cf.i386 8.13.8-2.el5 installed
sendmail-devel.i386 8.13.8-2.el5 installed
sendmail-doc.i386 8.13.8-2.el5 installed
[root@mail ~]# yum list all |grep m4
This system is not registered with RHN.
RHN support will be disabled.
m4.i386 1.4.5-3.el5.1 installed
[root@mail ~]#
2.2配置监听
更改sendmail.mc
[root@mail mail]# pwd
/etc/mail
[root@mail mail]# vim sendmail.mc
116 DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA'')dnl
--默认是本机监听25号端口,需要更改才能使非本地用户使用sendmail发送邮件
--Dnl # 是注视文字
--Dnl 是打开可以使用的
--末尾dnl 去除空格
[root@mail mail]# service sendmail restart
[root@mail mail]# netstat -tunpl |grep 25
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 30569/sendmail: acc
--添加本地用户
[root@mail etc]# useradd user1
[root@mail etc]# useradd user2
[root@mail etc]# passwd user1
[root@mail etc]# passwd user2
--可以通过日志文件查看错误
[root@mail ~]# vim /etc/syslog.conf
# Log all the mail messages in one place.
mail.* -/var/log/maillog
2.3本地发送接收邮件
[root@mail mail]# mail user1
Subject: uu
ws
.
Cc:
You have new mail in /var/spool/mail/root
[root@mail mail]# ll /var/spool/mail/
total 24
-rw-rw---- 1 redhat mail 0 Aug 27 14:35 redhat
-rw------- 1 root root 7153 Sep 4 17:30 root
-rw-rw---- 1 rpc mail 0 Aug 27 22:21 rpc
-rw------- 1 user1 mail 1693 Sep 4 17:30 user1
-rw-rw---- 1 user2 mail 575 Sep 4 17:30 user2
[user1@mail ~]$ mail
Mail version 8.1 6/6/93. Type ? for help.
"/var/spool/mail/user1": 3 messages 3 new
>N 1 root@mail.bj.com Sun Sep 4 17:30 17/565 "e"
N 2 root@mail.bj.com Sun Sep 4 17:30 16/565 "u"
N 3 root@mail.bj.com Sun Sep 4 17:30 16/563 "1"
& 1
Message 1:
From root@mail.bj.com Sun Sep 4 17:30:56 2011
Date: Sun, 4 Sep 2011 17:18:47 0800
From: root <root@mail.bj.com>
To: user1@mail.bj.com
Subject: e
e
.
& 2
[root@mail mail]# tail /var/log/maillog
Sep 4 17:30:56 localhost sendmail[30570]: p849UuLM030570: to=<root@mail.bj.com>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31521, dsn=2.0.0, stat=Sent
Sep 4 17:30:56 localhost sendmail[30570]: p849BPv9030362: to=<user2@mail.bj.com>, ctladdr=<root@mail.bj.com> (0/0), delay=00:19:31, xdelay=00:00:00, mailer=local, pri=300303, dsn=2.0.0, stat=Sent
--如果sendmail.mc 116 DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA,M=Ea'')dnl
--会报错发送不出去mail
Sep 4 17:31:08 localhost sendmail[30587]: p849V8Ni030587: from=root, size=26, class=0, nrcpts=1, msgid=<201109040931.p849V8Ni030587@mail.bj.com>, relay=root@localhost
Sep 4 17:31:08 localhost sendmail[30587]: p849V8Ni030587: to=user1, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30026, relay=[127.0.0.1] [127.0.0.1], dsn=5.0.0, stat=Service unavailable
3.安装MAA
需要安装dovecot开启pop3才可以发送接收邮件
否则出错
27-2
3.1安装dovecot
[root@mail ~]# yum install dovecot
--Package dovecot-1.0.7-7.el5.i386 already installed and latest version
3.2 更改配置文件
[root@mail ~]# rpm -qc dovecot
/etc/dovecot.conf
[root@mail ~]# vim /etc/dovecot.conf
20 #protocols = imap imaps pop3 pop3s
--默认全开
22 protocols = pop3
[root@mail ~]# netstat -tupln |grep 25
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 4659/sendmail: acce
udp 0 0 :::43725 :::* 3191/avahi-daemon:
[root@mail ~]# netstat -tupln |grep dov
tcp 0 0 :::993 :::* LISTEN 4803/dovecot
tcp 0 0 :::995 :::* LISTEN 4803/dovecot
tcp 0 0 :::110 :::* LISTEN 4803/dovecot
tcp 0 0 :::143 :::* LISTEN 4803/dovecot
[root@mail ~]# grep 993 /etc/services
imaps 993/tcp # IMAP over SSL
imaps 993/udp # IMAP over SSL
imap4-ssl 585/tcp # IMAP4 SSL (use 993 instead)
imap4-ssl 585/udp # IMAP4 SSL (use 993 instead)
[root@mail ~]# grep 995 /etc/services
pop3s 995/tcp # POP-3 over SSL
pop3s 995/udp # POP-3 over SSL
[root@mail ~]# service dovecot restart
[root@mail ~]# chkconfig dovecot on
3.3客户端使用sendmail发送接收mail
1. 配置outlook
27-3
[root@mail ~]# mail user1
Subject: hhh
gfgfg
.
Cc:
27-4
3.4使用Outlook发信
27-5
27-6
3.5telnet发送邮件
[root@mail ~]# telnet mail.bj.com 25
-----中间输入出错可以使用shift esc backspace退格.
Trying 192.168.101.70...
Connected to mail.bj.com (192.168.101.70).
Escape character is ''^]''.
220 mail.bj.com ESMTP Sendmail 8.13.8/8.13.8; Thu, 15 Sep 2011 16:54:23 0800
help
214-2.0.0 This is sendmail
214-2.0.0 Topics:
214-2.0.0 HELO EHLO MAIL RCPT DATA
214-2.0.0 RSET NOOP QUIT HELP VRFY
214-2.0.0 EXPN VERB ETRN DSN AUTH
214-2.0.0 STARTTLS
214-2.0.0 For more info use "HELP <topic>".
214-2.0.0 To report bugs in the implementation see
214-2.0.0 http://www.sendmail.org/email-addresses.html
214-2.0.0 For local information send email to Postmaster at your site.
214 2.0.0 End of HELP info
helo mail.bj.com
250 mail.bj.com Hello mail.bj.com [192.168.101.70], pleased to meet you
mail from: user1@mail.bj.com
250 2.1.0 user1@mail.bj.com... Sender ok
rcpt to :user2@mail.bj.com
250 2.1.5 user2@mail.bj.com... Recipient ok
data
354 Enter mail, end with "." on a line by itself
subject
hello user2.this is user1.
.
250 2.0.0 p8F8sNcf032532 Message accepted for delivery
quit
221 2.0.0 mail.bj.com closing connection
Connection closed by foreign host.
[root@mail ~]#
27-7
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