構想圖:
所需主要源碼包:
postfix-2.8.2.tar.gz
courier-authlib-0.63.0.tar.bz2
extmail-1.2.tar.gz,
extman-1.1.tar.gz
Unix-Syslog-0.100.tar.gz
一、安裝前的準備工作:
1、安裝dns服務 yum install bind bind-chroot caching-nameserver
域名為liuyuan.com 192.168.1.160
主機名為mail.liuyuan.com
2、安裝所需的rpm包,這包括以下這些:
httpd, php, php-mysql, mysql, mysql-server, mysql-devel, openssl-devel, dovecot, perl-DBD-MySQL, tcl, tcl-devel, libart_lgpl, libart_lgpl-devel, libtool-ltdl, libtool-ltdl-devel, expect
yum install httpd php php-mysql mysql mysql-server mysql-devel openssl-devel dovecot perl-DBD-MySQL tcl tcl-devel libart_lgpl libart_lgpl-devel libtool-ltdl libtool-ltdl-devel expect
3、關閉sendmail,并将它的随系統自動啟動功能關閉:
# service sendmail stop
# chkconfig sendmail off
4、安裝以下開發所用到的rpm包組:通過yum grouplist 檢視
Development Libraries
Development Tools
Legacy Software Development
X Software Development
注:對應成中文就是:Development Libraries 開發庫; Development Tools 開發工具;
Legacy Software Development 老的軟體開發; X Software Development X軟體開發;
方法:
# yum groupinstall "packge_group_name"
5、啟動mysql資料庫,并給mysql的root使用者設定密碼:
# service mysqld start
# chkconfig mysqld on
---------------------------------授權本地使用者
mysql> SET PASSWORD FOR root@'localhost'=PASSWORD('redhat');
mysql> SET PASSWORD FOR root@'127.0.0.1'=PASSWORD('redhat');
mysql> FLUSH PRIVILEGES;
-------------------------------授權遠端使用者
mysql> GRANT ALL PRIVILEGES ON *.* TO root@'%' IDENTIFIED BY 'redhat';
二、安裝配置postfix
1、建立相關使用者及組并指定自定義使用者id及組id
# groupadd -g 2525 postfix
# useradd -g postfix -u 2525 -s /sbin/nologin -M postfix
# groupadd -g 2526 postdrop
# useradd -g postdrop -u 2526 -s /bin/false -M postdrop
# tar zxvf postfix-2.6.5.tar.gz
# cd postfix-2.6.5
# make makefiles 'CCARGS=-DHAS_MYSQL -I/usr/include/mysql -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/include/sasl -DUSE_TLS ' 'AUXLIBS=-L/usr/lib/mysql -lmysqlclient -lz -lm -L/usr/lib/sasl2 -lsasl2 -lssl -lcrypto'
# make
# make install
按照以下的提示輸入相關的路徑([]号中的是預設值,”[]”後的是輸入值,省略的表示采用預設值)
install_root: [/] /
tempdir: [/usr/local/src/ postfix-2.6.5] /tmp
config_directory: [/etc/postfix] /etc/postfix
daemon_directory: [/usr/libexec/postfix]
command_directory: [/usr/sbin]
data_directory: [/var/lib/postfix]
queue_directory: [/var/spool/postfix]
sendmail_path: [/usr/sbin/sendmail]
newaliases_path: [/usr/bin/newaliases]
mailq_path: [/usr/bin/mailq]
mail_owner: [postfix]
setgid_group: [postdrop]
html_directory: [no] /var/www/html/help #幫助文檔
manpages: [/usr/local/man]
readme_directory: [no]
生成别名二進制檔案,這個步驟如果忽略,會造成postfix效率極低:
# newaliases
2.進行一些基本配置,測試啟動postfix并進行發信
#vi /etc/postfix/main.cf
修改以下幾項為您需要的配置
myhostname = mail.liuyuan.com
myorigin = liuyuan.com
mydomain = liuyuan.com
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mynetworks = 192.168.1.0/24, 127.0.0.0/8
說明:
myorigin參數用來指明發件人所在的域名;
mydestination參數指定postfix接收郵件時收件人的域名,即您的postfix系統要接收到哪個域名的郵件;
myhostname 參數指定運作postfix郵件系統的主機的主機名,預設情況下,其值被設定為本地機器名;
mydomain參數指定您的域名,預設情況下,postfix将myhostname的第一部分删除而作為mydomain的值;
mynetworks 參數指定你所在的網絡的網絡位址,postfix系統根據其值來差別使用者是遠端的還是本地的,如果是本地網絡使用者則允許其通路;
inet_interfaces 參數指定postfix系統監聽的網絡接口;
注意:
1、在postfix的配置檔案中,參數行和注釋行是不能處在同一行中的;
2、任何一個參數的值都不需要加引号,否則,引号将會被當作參數值的一部分來使用;
3、每修改參數及其值後執行 postfix reload 即可令其生效;但若修改了inet_interfaces,則需重新啟動postfix;
4、如果一個參數的值有多個,可以将它們放在不同的行中,隻需要在其後的每個行前多置一個空格即可;postfix會把第一個字元為空格或tab的文本行視為上一行的延續;
[root@localhost abc]# rpm2cpio postfix-2.3.3-2.1.el5_2.i386.rpm |cpio -id
16333 blocks
[root@localhost etc]#cp etc/init.d/rc.d/postfix /etc/init.d/
[root@localhost etc]# ll /etc/init.d/postfix
-rwxr-xr-x 1 root root 2404 12-14 17:51 /etc/init.d/postfix
[root@localhost etc]# chkconfig --add postfix
[root@localhost etc]# chkconfig postfix on
啟動postfix
#service postfix start
連接配接postfix,驗正服務啟動狀況:
# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 mail.liuyuan.com ESMTP Postfix
ehlo mail.liuyuan.com
250-mail.liuyuan.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from:[email protected]
250 2.1.0 Ok
rcpt to:[email protected]
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
subject:test!
test!!!
.
250 2.0.0 Ok: queued as AB94A1A561
quit
221 2.0.0 Bye
Connection closed by foreign host.
切換到user1使用者進行收信:
# su - user1
Mail version 8.1 6/6/93. Type ? for help.
"/var/spool/mail/user1": 1 message 1 new
>N 1 [email protected] Wed Sep 5 10:59 15/488 "test!"
&
三、為postfix開啟基于cyrus-sasl的認證功能
使用以下指令驗正postfix是否支援cyrus的sasl認證,如果您的輸出為以下結果,則是支援的:
# /usr/sbin/postconf -a
cyrus
dovecot
添加以下内容:
############################CYRUS-SASL############################
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_invalid_hostname,reject_non_fqdn_hostname,reject_unknown_sender_domain,reject_non_fqdn_sender,reject_non_fqdn_recipient,reject_unknown_recipient_domain,reject_unauth_pipelining,reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_security_options = noanonymous
smtpd_banner = Welcome to our $myhostname ESMTP,Warning: Version not Available!
#vi /usr/lib/sasl2/smtpd.conf
添加如下内容:
pwcheck_method: saslauthd
mech_list: PLAIN LOGIN
啟動saslauthd服務,并将其加入到自動啟動隊列:
# service saslauthd start
# chkconfig saslauthd on
重新開機postfix服務
#service postfix restart
220 Welcome to our mail.liuyuan.com ESMTP,Warning: Version not Available!
ehlo mail.test.com
250-mail.test.com
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN (說明已經支援驗證)
四、安裝Courier authentication library
# tar jxvf courier-authlib-0.63.0.tar.bz2 -C /usr/local/src/
# cd /usr/local/src/courier-authlib-0.63.0
#./configure --prefix=/usr/local/courier-authlib --sysconfdir=/etc --with-authmysql --with-mysql-libs=/usr/lib/mysql --with-mysql-includes=/usr/include/mysql --with-redhat --with-authmysqlrc=/etc/authmysqlrc --with-authdaemonrc=/etc/authdaemonrc --with-ltdl-lib=/usr/lib --with-ltdl-include=/usr/include
# chmod 755 /usr/local/courier-authlib/var/spool/authdaemon
# cp /etc/authdaemonrc.dist /etc/authdaemonrc
# cp /etc/authmysqlrc.dist /etc/authmysqlrc
修改/etc/authdaemonrc 檔案
authmodulelist="authmysql"
authmodulelistorig="authmysql"
daemons=10
編輯/etc/authmysqlrc 為以下内容,其中2525,2525 為postfix 使用者的UID和GID。
MYSQL_SERVER localhost
MYSQL_PORT 3306 (指定你的mysql監聽的端口,這裡使用預設的3306)
MYSQL_USERNAME extmail (這是為後文要用的資料庫的所有者的使用者名)
MYSQL_PASSWORD extmail (extmail使用者的密碼)
MYSQL_SOCKET /var/lib/mysql/mysql.sock
MYSQL_DATABASE extmail
MYSQL_USER_TABLE mailbox
MYSQL_CRYPT_PWFIELD password
MYSQL_UID_FIELD 2525
MYSQL_GID_FIELD 2525
MYSQL_LOGIN_FIELD username
MYSQL_HOME_FIELD concat('/var/mailbox/',homedir)
MYSQL_NAME_FIELD name
MYSQL_MAILDIR_FIELD concat('/var/mailbox/',maildir)
#cd /usr/local/src/courier-authlib-0.63.0
# cp courier-authlib.sysvinit /etc/init.d/courier-authlib
# chmod 755 /etc/init.d/courier-authlib
# chkconfig --add courier-authlib
# chkconfig --level 2345 courier-authlib on
加載courier-authlib的庫檔案,
#echo "/usr/local/courier-authlib/lib/courier-authlib" >> /etc/ld.so.conf.d/courier-authlib.conf
# ldconfig -v |more (檢視是否正常加載相關庫檔案)
# service courier-authlib start (啟動服務)
Starting Courier authentication services: authdaemond
建立虛拟使用者郵箱所在的目錄,并将其權限賦予postfix使用者:
#mkdir -pv /var/mailbox
#chown -R postfix /var/mailbox
接下來重新配置SMTP 認證,編輯 /usr/lib/sasl2/smtpd.conf ,確定其為以下内容:
pwcheck_method: authdaemond
log_level: 3
mech_list:PLAIN LOGIN
authdaemond_path:/usr/local/courier-authlib/var/spool/authdaemon/socket
#service saslauthd restart (重新開機saslauthd服務)
五、讓postfix支援虛拟域和虛拟使用者
1、編輯/etc/postfix/main.cf,添加如下内容:
########################Virtual Mailbox Settings########################
virtual_mailbox_base = /var/mailbox
virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf
virtual_mailbox_domains = mysql:/etc/postfix/mysql_virtual_domains_maps.cf
virtual_alias_domains =
virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf
virtual_uid_maps = static:2525
virtual_gid_maps = static:2525
virtual_transport = virtual
maildrop_destination_recipient_limit = 1
maildrop_destination_concurrency_limit = 1
##########################QUOTA Settings########################
message_size_limit = 14336000
virtual_mailbox_limit = 20971520
virtual_create_maildirsize = yes
virtual_mailbox_extended = yes
virtual_mailbox_limit_maps = mysql:/etc/postfix/mysql_virtual_mailbox_limit_maps.cf
virtual_mailbox_limit_override = yes
virtual_maildir_limit_message = Sorry, the user's maildir has overdrawn his diskspace quota, please Tidy your mailbox and try again later.
virtual_overquota_bounce = yes
2、使用extman源碼目錄下docs目錄中的extmail.sql和init.sql建立資料庫:
# tar zxvf extman-1.1.tar.gz
# cd extman-1.1/docs
#cp mysql_virtual_* /etc/postfix/
----------将extmail.sql與init.sql導入到mysql資料庫中---------------------------------------
# mysql -u root -p <extmail.sql
# mysql -u root -p <init.sql
#mysql -u root -p (進行驗證,檢視是否導入成功)
3、授予使用者extmail通路extmail資料庫的權限
mysql> GRANT all privileges on extmail.* TO extmail@localhost IDENTIFIED BY 'extmail';
mysql> GRANT all privileges on extmail.* TO [email protected] IDENTIFIED BY 'extmail';
mysql>FLUSH PRIVILEGES; 讓設定的内容生效
service postfix restart (重新開機postfix服務)
注意:啟用虛拟域以後,需要取消中心域,即注釋掉myhostname, mydestination, mydomain, myorigin幾個指令;
否則就會報錯:
postfix/trivial-rewrite[12839]: warning: do not list domain liuyuan.com in BOTH mydestination and virtual_mailbox_domains
接下一篇……
本文轉自 劉園 51CTO部落格,原文連結:http://blog.51cto.com/colynn/1091326