Postfix
安装postfix
[root@mail ~]# cd /mnt/cdrom/Server/
[root@mail Server]# rpm -ivh postfix-
postfix-2.3.3-2.1.el5_2.i386.rpm
postfix-pflogsumm-2.3.3-2.1.el5_2.i386.rpm
[root@mail Server]# rpm -ivh postfix-2.3.3-2.1.el5_2.i386.rpm
Preparing... ########################################### [100%]
1:postfix ########################################### [100%]
[root@mail Server]# vim /etc/postfix/master.cf
做dns
[root@mail Server]# rpm -qa |grep bind
bind-9.3.4-10.P1.el5
bind-devel-9.3.4-10.P1.el5
bind-libs-9.3.4-10.P1.el5
bind-sdb-9.3.4-10.P1.el5
ypbind-1.19-11.el5
bind-utils-9.3.4-10.P1.el5
bind-libbind-devel-9.3.4-10.P1.el5
bind-chroot-9.3.4-10.P1.el5
[root@localhost Server]# rpm -ivh caching-nameserver-9.3.4-10.P1.el5.i386.rpm
[root@localhost etc]# cd /var/named/chroot/etc/
[root@localhost etc]# cp -p named.caching-nameserver.conf named.conf
[root@localhost etc]# vim named.conf
options {
listen-on port 53 { any; }
allow-query { any; };
};
view localhost_resolver {
match-clients { any; };
match-destinations { any; };
recursion yes;
include "/etc/named.rfc1912.zones";
};
[root@localhost ~]# cd /var/named/chroot/etc
[root@localhost etc]# vim named.rfc1912.zones
zone "bj.com" IN {
type master;
File "bj.com.zone";
allow-update { none; };
};
[root@localhost named]# pwd
/var/named/chroot/var/named
[root@localhost named]# cp -p localhost.zone bj.com.zone
[root@localhost named]# vim bj.com.zone
$TTL 86400
@ IN SOA ns.bj.com. root (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS ns.bj.com.
ns IN A 192.168.101.9
mail IN A 192.168.101.9
pop3 IN CNAME mail
smtp IN CNAME mail
@ IN MX 10 mail
[root@localhost named]# vim /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=mail.bj.com
[root@localhost named]# vim /etc/resolv.conf
nameserver 192.168.101.9
[root@localhost named]# vim /etc/hosts
127.0.0.1 localhost.localdomain localhost
192.168.101.9 mail.bj.com mail
[root@localhost named]# vim /etc/inittab
id:3:initdefault:
[root@mail ~]# service named start
[root@mail ~]# chkconfig named on
[root@mail named]# dig -t mx bj.com
开启postfix
[root@mail ~]# service postfix restart
Shutting down postfix: [ OK ]
Starting postfix: [ OK ]
[root@mail ~]# netstat -tupnl |grep 25
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 4269/master
[root@mail ~]#
Main.cf
Man 5 配置脚本
Man 1 用户命令
ｍａｎ ８ ｘ系统管理
ｍａｎ ｐｏｓｔｃｏｎｆ
ｍａｎ ５ ｐｏｓｔｃｏｎｆ
[root@mail ~]# vim /etc/postfix/main.cf
110 inet_interfaces = all
[root@mail ~]# service postfix restart
Shutting down postfix: [ OK ]
Starting postfix: [ OK ]
[root@mail ~]# netstat -tupln |grep 25
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 4400/master
[root@mail ~]#！netstat --倒数第一个最近使用的netstat命令
[root@mail ~]# vim /etc/postfix/main.cf
70 myhostname = mail.bj.com
77 mydomain = bj.com
158 mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
--按地址段的中继
257 mynetworks = 168.100.101.0/24, 127.0.0.0/8 --接收mail的网段
[root@mail ~]# service postfix restart
Shutting down postfix: [ OK ]
Starting postfix: [ OK ]
[root@mail ~]# useradd user1
[root@mail ~]# useradd user2
[root@mail ~]# passwd user1
[root@mail ~]# passwd user2
邮件的收发
[root@mail ~]# mail user1@bj.com
Subject: 1
1
.
Cc:
[user1@mail root]$ su - user1
Password:
[user1@mail ~]$ mail
Mail version 8.1 6/6/93. Type ? for help.
"/var/spool/mail/user1": 1 message 1 new
>N 1 root@mail.bj.com Sat Aug 27 17:25 18/603 "1"
& 1
Message 1:
From root@mail.bj.com Sat Aug 27 17:25:34 2011
X-Original-To: user1@bj.com
Delivered-To: user1@bj.com
Date: Sat, 27 Aug 2011 17:25:34 +0800
From: root <root@mail.bj.com>
To: user1@bj.com
Subject: 1
1
&
身份验证ｓａｓｌ
启用sasl认证
[root@mail ~]# rpm -qa |grep sasl
cyrus-sasl-2.1.22-4
cyrus-sasl-lib-2.1.22-4
cyrus-sasl-plain-2.1.22-4
cyrus-sasl-devel-2.1.22-4
[root@mail ~]# service saslauthd start
Starting saslauthd: [ OK ]
[root@mail ~]# cd /usr/lib/sasl2/
更改postfix配置文件添加验证
[root@mail sasl2]#
[root@mail sasl2]# vim /etc/postfix/main.cf
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes –启用sasl
smtpd_sasl_security_options = noanonymous --安全选项 不允许匿名
smtpd_sasl_application_name = smtpd
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,rejec
t_unauth_destination --设置中继
--开头空格表示上一行的延续
[root@mail sasl2]# vim smtpd.conf
pwcheck_method: saslauthd
~
[root@mail sasl2]# service postfix restart
通过验证发送邮件
[root@mail ~]# echo -n "user1@bj.com"|openssl base64
dXNlcjFAYmouY29t
[root@mail ~]# echo -n "123"|openssl base64
MTIz
[root@mail sasl2]# telnet mail.bj.com 25
Trying 192.168.101.9...
Connected to mail.bj.com (192.168.101.9).
Escape character is '^]'.
220 mail.bj.com ESMTP Postfix
auth login dXNlcjFAYmouY29t
334 UGFzc3dvcmQ6
MTIz
235 2.0.0 Authentication successful
mail from:user1@bj.com
250 2.1.0 Ok
rcpt to :user2@bj.com
501 5.5.4 Syntax: RCPT TO:<address>
rcpt to:user2@bj.com
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
subject
hello user2 this is user1.
.
250 2.0.0 Ok: queued as 881FB4ADADF
500 5.5.2 Error: bad syntax
quit
221 2.0.0 Bye
Connection closed by foreign host.
[root@mail sasl2]#
接收邮件
[root@mail ~]# su - user2
[user2@mail ~]$ mail
Mail version 8.1 6/6/93. Type ? for help.
"/var/spool/mail/user2": 1 message 1 new
>N 1 user1@bj.com Sat Aug 27 17:53 15/476
& 1
Message 1:
From user1@bj.com Sat Aug 27 17:53:44 2011
X-Original-To: user2@bj.com
Delivered-To: user2@bj.com
Date: Sat, 27 Aug 2011 17:52:07 +0800 (CST)
From: user1@bj.com
To: undisclosed-recipients:;
subject
hello user2 this is user1.
&
限定用户的安全认证
[root@mail ~]# vim /etc/postfix/main.cf
257 mynetworks = 192.168.101.0/24 127.0.0.0/8
671 broken_sasl_auth_clients = yes
672 smtpd_sasl_auth_enable = yes
673 smtpd_sasl_security_options = noanonymous
674 smtpd_sasl_application_name = smtpd
676 smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,
677 reject_unauth_destination
678 smtpd_client_restrictions = permit_sasl_authenticated,reject
--所有用户都要验证的，验证的通过 ，不验证的拒绝发送邮件。
[root@mail ~]# service postfix restart
[root@mail ~]# echo -n "user1@bj.com"|openssl base64
dXNlcjFAYmouY29t
[root@mail ~]# echo -n "123"|openssl base64
MTIz
[root@mail ~]# telnet mail.bj.com 25
Trying 192.168.101.9...
Connected to mail.bj.com (192.168.101.9).
Escape character is '^]'.
220 mail.bj.com ESMTP Postfix
mail from:user1@bj.com
250 2.1.0 Ok
rcpt to:user2@bj.com
554 5.7.1 <mail.bj.com[192.168.101.9]>: Client host rejected: Access denied
auth login dXNlcjFAYmouY29t
334 UGFzc3dvcmQ6
MTIz
235 2.0.0 Authentication successful
data
554 5.5.1 Error: no valid recipients
rcpt to:user2@bj.com
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
hello this test for smtpd
.
250 2.0.0 Ok: queued as BA6164ADADF
[user2@mail ~]$ mail
Mail version 8.1 6/6/93. Type ? for help.
"/var/spool/mail/user2": 1 message 1 new
>N 1 user1@bj.com Sat Aug 27 19:59 14/467
& 1
Message 1:
From user1@bj.com Sat Aug 27 19:59:43 2011
X-Original-To: user2@bj.com
Delivered-To: user2@bj.com
Date: Sat, 27 Aug 2011 19:57:49 +0800 (CST)
From: user1@bj.com
To: undisclosed-recipients:;
hello this test for smtpd
&
[root@mail ~]# mail user1@bj.com
Subject: yy
yy
.
Cc:
[root@mail ~]# tail /var/log/maillog
Aug 27 19:59:43 mail postfix/cleanup[5974]: BA6164ADADF: message-id=<20110827115917.BA6164ADADF@mail.bj.com>
Aug 27 19:59:43 mail postfix/qmgr[5950]: BA6164ADADF: from=<user1@bj.com>, size=348, nrcpt=1 (queue active)
Aug 27 19:59:43 mail postfix/local[5975]: BA6164ADADF: to=<user2@bj.com>, relay=local, delay=114, delays=114/0.01/0/0.01,
dsn=2.0.0, status=sent (delivered to mailbox)
Aug 27 19:59:43 mail postfix/qmgr[5950]: BA6164ADADF: removed
Aug 27 20:02:37 mail postfix/smtpd[5967]: disconnect from mail.bj.com[192.168.101.9]
Aug 27 20:03:00 mail sendmail[6020]: p7RC30TM006020: from=root, size=33, class=0, nrcpts=1,
msgid=<201108271203.p7RC30TM006020@mail.bj.com>, relay=root@localhost
Aug 27 20:03:00 mail postfix/smtpd[5967]: connect from localhost.localdomain[127.0.0.1]
Aug 27 20:03:00 mail postfix/smtpd[5967]: fatal: non-null host address bits in "127.0.0.1/8", perhaps you should use "127.0.0.0/8"
instead
Aug 27 20:03:01 mail sendmail[6020]: p7RC30TM006020: to=user1@bj.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:01,
mailer=relay, pri=30033, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection reset by [127.0.0.1]
Aug 27 20:03:01 mail postfix/master[5948]: warning: process /usr/libexec/postfix/smtpd pid 5967 exit status 1
[root@mail ~]#
