postfix extmail邮件系统安装

配置extmail 过程详解所用软件包:(本文中, 以下软件包都将在/root中存放), 软件包都是最新的源代码包。Postfix-2.6.2Mysql-5.0.45Cyrus-sasl-2.1.22

配置extmail 过程详解

所用软件包:(本文中, 以下软件包都将在/root中存放), 软件包都是最新的源代码包。

Postfix-2.6.2

Mysql-5.0.45

Cyrus-sasl-2.1.22

DB-4.5.20

Openssl-0.9.8e

Php-5.2.3

courier-authlib-0.58

courier-imap-4.1.0

Extmail-1.1.0(依赖关系包:Unix-Syslog-1.1.tar.gz,DBD-mysql-3.0008.tar.gz)

Extman-0.2.5(依赖关系包:gd-2.0.35,GD-2.44,配置图形日志所需软件包:Time-HiRes-1.9719.tar.gz,File-Tail-0.99.3.tar.gz,rrdtool-1.2.30.tar.gz )

maildrop-2.0.2(需要pcre 的支持,pcre-7.3.tar.bz2)

clamav-0.91.2

amavisd-new-2.6.4

Mail-SpamAssassin-3.2.5

系统逻辑结构

前提:开始前请确保您已经配置好指向此邮件服务器MX 记录及其它DNS 设置;本示例中的域名为gdc8888.com ,邮件服务器FQDN 为mail.gdc8888.com ,IP 地址为192.168.1.11;同时,如果您的服务器事先已经安装了sendmail ,请卸载之;

一、安装mysql-5.0.45

# rpm -qa |grep mysql|xargs rpm -e --nodeps(删除系统自带的mysql )

# groupadd mysql

# useradd -g mysql -s /bin/false -M mysql

,

# tar zxvf mysql-5.0.45.tar.gz

# cd mysql-5.0.45

#./configure --prefix=/usr/local/mysql --enable-thread-safe-client --enable-local-infile --with-charset=gbk --with-extra-charset=all --with-low-memory

# make

# make install

# cp support-files/my-medium.cnf /etc/my.cnf

# cd /usr/local/mysql

# chown -R mysql .

# chgrp -R mysql .

# bin/mysql_install_db --user=mysql

# chown -R root .

# chown -R mysql var

# bin/mysqld_safe --user=mysql &

# netstat -tnl(查看有没有打开3306端口)

# cd /root/mysql-5.0.45 (这里的目录指的是原压缩包解压后的目录) # cp support-files/mysql.server /etc/rc.d/init.d/mysqld

# chmod 700 /etc/rc.d/init.d/mysqld

加入自动启动服务队列:

# chkconfig --add mysqld

# chkconfig --level 345 mysqld on

测试

# /usr/local/mysql/bin/mysqladmin ping

# /usr/local/mysql/bin/mysqladmin version

# /usr/local/mysql/bin/mysql

添加root 密码

# /usr/local/mysql/bin/mysqladmin -u root password 'password' 新密码

说明:此时mysql 的root 用户的密码为空

配置库文件搜索路径

# echo "/usr/local/mysql/lib/mysql" >> /etc/ld.so.conf

# ldconfig -v

添加/usr/local/mysql/bin到环境变量PATH 中

# export PATH=$PATH:/usr/local/mysql/bin

二、安装openssl-0.9.8e

# tar zxvf openssl-0.9.8e.tar.gz

# cd openssl-0.9.8e

# ./config shared zlib

# make

# make test

# make install

# mv /usr/bin/openssl /usr/bin/openssl.OFF

# mv /usr/include/openssl /usr/include/openssl.OFF

# rm /usr/lib/libssl.so

# ln -s /usr/local/ssl/bin/openssl /usr/bin/openssl

# ln -s /usr/local/ssl/include/openssl /usr/include/openssl

# ln -sv /usr/local/ssl/lib/libssl.so.0.9.8 /usr/lib/libssl.so

,

配置库文件搜索路径

# echo "/usr/local/ssl/lib" >> /etc/ld.so.conf

# ldconfig -v

检测安装结果

# openssl version

OpenSSL 0.9.8e 23 Feb 2007

三、安装BerkeleyDB

# tar zxvf db-4.5.20.tar.gz

# cd db-4.5.20/build_unix

# ../dist/configure --prefix=/usr/local/BerkeleyDB

# make

# make install

修改相应的头文件指向

# mv /usr/include/db4 /usr/inculde/db4.OFF

# rm /usr/include/db_cxx.h

# rm /usr/include/db.h

# rm /usr/include/db_185.h

# ln -sv /usr/local/BerkeleyDB/include /usr/include/db4

# ln -sv /usr/local/BerkeleyDB/include/db.h /usr/include/db.h

# ln -sv /usr/local/BerkeleyDB/include/db_cxx.h /usr/include/db_cxx.h

配置库文件搜索路径

# echo "/usr/local/BerkeleyDB/lib" >> /etc/ld.so.conf

# ldconfig -v

四、安装httpd-2.2.4

# tar jxvf httpd-2.2.4.tar.bz2

# cd httpd-2.2.4

#./configure --prefix=/usr/local/apache --sysconfdir=/etc/httpd --enable-so --enable-ssl --with-ssl=/usr/local/ssl --enable-track-vars --enable-rewrite --with-zlib --enable-mods-shared=most --enable-suexec --with-suexec-caller=daemon --with-suexec-docroot=/var/www

# make

# make install

# echo "/usr/local/apache/bin/apachectl start" >> /etc/rc.local(系统启动时服务自动启动)

安装:libpng 以支持PHP

五、安装php-5.2.3

# tar -zvxf php-5.2.3.tar.gzmak

,

# mkdir -p /usr/local/php

# cd php-5.2.3

#./configure --prefix=/usr/local/php --with-apxs2=/usr/local/apache/bin/apxs --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-xml --with-png --with-jpeg --with-zlib --with-freetype --with-gd --enable-track-vars --enable-mbstring=all

# make

# make install

# cp php.ini-dist /usr/local/php/lib/php.ini

注:编辑apache 配置文件httpd.conf ,以apache 支持php

# vi /etc/httpd/httpd.conf

1、添加如下二行

AddType application/x-httpd-php .php

AddType application/x-httpd-php-source .phps

2、定位至DirectoryIndex index.html

修改为:

DirectoryIndex index.php index.html

3、按照使用习惯,这里将网站根目录指定到/var/www:

找到DocumentRoot “/usr/local/apache/htdocs”

修改为:DocumentRoot “/var/www”(后文中我们还会注释掉此行,以启用虚拟主机)

找到

修改为:

找到<#ServerName www.example.com:80>

修改为: 注意把#去掉

说明:这个对本文来说并非是不可少的。

# mkdir /var/www

# /usr/local/apache/bin/apachectl start 启动apache 服务

最后一步重新启动apache 报如下错误:(NND 美好的事总是最后发生异常)

/usr/local/apache/modules/libphp5.so into server: /usr/local/apache/modules/libphp5.so: cannot restore segment prot after reloc: Permission denied

解决办法:

原因是Linux 有一个SELinux 保护模式引起的。

1关闭SELINUX 的方法:

vi /etc/selinux/config 将SELINUX=enforcing 改成SELINUX=disabled 需要重启

2不关闭SELINUX 的方法:

# setenforce 0

# chcon -c -v -R -u system_u -r object_r -t textrel_shlib_t

/usr/local/apache/modules/libphp5.so

# service httpd restart

# setenforce 1

六、安装Courier authentication library

1. 先添加vuser 用户和vgroup 组

# groupadd -g 1000 vgroup

# useradd -g 1000 -u 1000 -M -s /bin/false vuser

,

# tar jxvf courier-authlib-0.58.tar.bz2

# cd courier-authlib-0.58

#./configure --prefix=/usr/local/courier-authlib --without-stdheaderdir --sysconfdir=/etc --without-authpam --without-authldap --without-authpwd --without-authshadow --without-authvchkpw --without-authpgsql --with-authmysql --with-mysql-libs=/usr/local/mysql/lib/mysql

--with-mysql-includes=/usr/local/mysql/include/mysql --with-redhat --with-mailuser=vuser --with-mailgroup=vgroup --with-authmysqlrc=/etc/authmysqlrc --with-authdaemonrc=/etc/authdaemonrc CFLAGS="-march=i686 -O2 -fexpensive-optimizations" CXXFLAGS="-march=i686 -O2 -fexpensive-optimizations"

# make

# make install

# make install-migrate

# make install-configure

# chmod 755 /usr/local/courier-authlib/var/spool/authdaemon(这一步需注意,这一步若没有,则会出现authdaemon 权限拒绝。)

# cp /etc/authdaemonrc.dist /etc/authdaemonrc

# cp /etc/authmysqlrc.dist /etc/authmysqlrc

修改/etc/authdaemonrc 文件

authmodulelist="authmysql"

authmodulelistorig="authmysql"

daemons=10

DEBUG_LOGIN=2

编辑/etc/authmysqlrc 为以下内容,其中1000,1000为vuser 用户的UID 和vgroup 的GID 。

MYSQL_SERVER localhost

MYSQL_PORT 3306 (指定你的mysql 监听的端口,这里使用默认的3306)

MYSQL_USERNAME extmail (这时为后文要用的数据库的所有者的用户名)

MYSQL_PASSWORD extmail (密码)

MYSQL_SOCKET /tmp/mysql.sock

MYSQL_DATABASE extmail

MYSQL_USER_TABLE mailbox

MYSQL_CRYPT_PWFIELD password

MYSQL_UID_FIELD 1000

MYSQL_GID_FIELD 1000

MYSQL_LOGIN_FIELD username

MYSQL_HOME_FIELD concat('/var/mailbox/',homedir)

MYSQL_NAME_FIELD name

MYSQL_MAILDIR_FIELD concat('/var/mailbox/',maildir)

MYSQL_QUOTA_FIELD quota

,

# cp courier-authlib.sysvinit /etc/rc.d/init.d/courier-authlib

# chmod 755 /etc/rc.d/init.d/courier-authlib

# chkconfig --add courier-authlib

# chkconfig courier-authlib on

# echo "/usr/local/courier-authlib/lib/courier-authlib" >> /etc/ld.so.conf # ldconfig

# ldconfig -v

# service courier-authlib start (启动服务)

,

七、安装Courier-IMAP

# tar jxvf courier-imap-4.1.0.tar.bz2

# cd courier-imap-4.1.0

#./configure --prefix=/usr/local/courier-imap --with-redhat --enable-unicode --disable-root-check --with-trashquota --without-ipv6 CPPFLAGS='-I/usr/local/ssl/include/openssl -I/usr/local/courier-authlib/include' LDFLAGS='-L/usr/local/courier-authlib/lib/courier-authlib'

COURIERAUTHCONFIG='/usr/local/courier-authlib/bin/courierauthconfig' # make

# make install

# cp /usr/local/courier-imap/etc/imapd.dist /usr/local/courier-imap/etc/imapd

# cp /usr/local/courier-imap/etc/imapd-ssl.dist /usr/local/courier-imap/etc/imapd-ssl # cp /usr/local/courier-imap/etc/pop3d.dist /usr/local/courier-imap/etc/pop3d

# cp /usr/local/courier-imap/etc/pop3d-ssl.dist /usr/local/courier-imap/etc/pop3d-ssl 配置Courier-IMAP ,为用户提供pop3服务:

vi /usr/local/courier-imap/etc/pop3d

POP3DSTART=YES

注:如果你想为用户提供IMAP 服务,则需在"/usr/local/courier-imap/etc/imapd"文件中设置"IMAPDSTART=yes";其它类同;

新建虚拟用户邮箱所在的目录,并将其权限赋予vuser 用户:

# mkdir –pv /var/mailbox

# chown -R vuser.vgroup /var/mailbox

# cp courier-imap.sysvinit /etc/rc.d/init.d/courier-imapd

# chmod 755 /etc/rc.d/init.d/courier-imapd

# chkconfig --add courier-imapd

# chkconfig --level 2345 courier-imapd on

# service courier-imapd start

八、安装sasl-2.1.22

删除系统自带的cyrus-sasl

# rpm -qa|grep cyrus-sasl |xargs rpm -e --nodeps

# rm -rf /usr/lib/sasl

# rm -rf /usr/lib/sasl2

# tar zxvf cyrus-sasl-2.1.22.tar.gz

# cd cyrus-sasl-2.1.22

#./configure --disable-ntlm --disable-krb4 --disable-gssapi --disable-anon --disable-sample --enable-plain --enable-digest -enable-cram --enable-login --enable-sql --with-mysql=/usr/local/mysql --with-mysql-includes=/usr/local/mysql/include/mysql

--with-mysql-libs=/usr/local/mysql/lib/mysql

--with-authdaemond=/usr/local/courier-authlib/var/spool/authdaemon/socket # make

# make install

,

# ln -sv /usr/local/lib/sasl2 /usr/lib/sasl2

创建运行时需要的目录并调试启动

# mkdir -pv /var/state/saslauthd

# /usr/local/sbin/saslauthd -a shadow pam -d

启动并测试

# /usr/local/sbin/saslauthd -a shadow pam

# /usr/local/sbin/testsaslauthd -u root -p 用户密码 如果提示OK "Success.",则成功。

配置库文件搜索路径

# echo "/usr/local/lib" >> /etc/ld.so.conf

# ldconfig

# ldconfig -v

开机自动启动

# echo "/usr/local/sbin/saslauthd -a shadow pam">>/etc/rc.local

接下来配置SMTP 认证,编辑 /usr/local/lib/sasl2/smtpd.conf,确保其为以下内容: pwcheck_method: authdaemond

log_level: 3

mech_list:PLAIN LOGIN

authdaemond_path:/usr/local/courier-authlib/var/spool/authdaemon/socket

九、安装Postfix-2.6.2

安装之前请先卸载掉sendmail

# /etc/init.d/sendmail stop

# rpm -qa |grep sendmail|xargs rpm -e --nodeps

1.安装

# 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-2.6.2.tar.gz

# cd postfix-2.6.2

#make makefiles 'CCARGS=-DHAS_MYSQL -I/usr/local/mysql/include/mysql -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/local/include/sasl -I/usr/local/BerkeleyDB/include -DUSE_TLS -I/usr/local/ssl/include/openssl ' 'AUXLIBS=-L/usr/local/mysql/lib/mysql -lmysqlclient -lz -lm -L/usr/local/lib -lsasl2 -L/usr/local/BerkeleyDB/lib -L/usr/local/ssl/lib -lssl -lcrypto'

# make

# make install

按照以下的提示输入相关的路径([]号中的是缺省值,”]”后的是输入值) install_root: [/] /

tempdir: [/root/postfix-2.6.2]

,

config_directory: [/etc/postfix]

daemon_directory: [/usr/libexec/postfix]

command_directory: [/usr/sbin]

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]

manpages: [/usr/local/man]

readme_directory: [no]

说明:上面我全都采用默认安装,这样使用起来会更为方便些;

生成别名二进制文件,这个步骤如果忽略,会造成postfix 效率极低: # newaliases

2.进行一些基本配置,测试启动postfix 并进行发信

#vi /etc/postfix/main.cf

修改以下几项为您需要的配置

myhostname = mail.gdc8888.com

myorigin = gdc8888.com

mydomain = gdc8888.com

mydestination = $myhostname, localhost.$mydomain, localhost

mynetworks = 192.168.1.0/24, 127.0.0.0/8

说明:

myorigin 参数用来指明发件人所在的域名;

mydestination 参数指定postfix 接收邮件时收件人的域名,即您的postfix 系统要接收到哪个域名的邮件;myhostname 参数指定运行postfix 邮件系统的主机的主机名,默认情况下,其值被设定为本地机器名;mydomain 参数指定您的域名,默认情况下,postfix 将myhostname 的第一部分删除而作为mydomain 的值;mynetworks 参数指定你所在的网络的网络地址,postfix 系统根据其值来区别用户是远程的还是本地的,如果是本地网络用户则允许其访问;

inet_interfaces 参数指定postfix 系统监听的网络接口;

注意:

1、在postfix 的配置文件中,参数行和注释行是不能处在同一行中的;

2、任何一个参数的值都不需要加引号,否则,引号将会被当作参数值的一部分来使用;

3、每修改参数及其值后执行 postfix reload 即可令其生效;但若修改了inet_interfaces,则需重新启动postfix ;

4、如果一个参数的值有多个,可以将它们放在不同的行中,只需要在其后的每个行前多置一个空格即可;postfix 会把第一个字符为空格或tab 的文本行视为上一行的延续;

启动postfix

# /usr/sbin/postfix start

十、为postfix 开启基于cyrus-sasl 的认证功能

,

使用以下命令验正postfix 是否支持cyrus 风格的sasl 认证,如果您的输出为以下结果,

则是支持的:

# postconf -a

cyrus

dovecot

#vi /etc/postfix/main.cf

在文件末尾添加以下内容:

############################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 permit

smtpd_sasl_auth_enable = yes

smtpd_sasl_local_domain = $myhostname

smtpd_sasl_security_options = noanonymous

smtpd_sasl_application_name = smtpd

smtpd_banner = Welcome to our $myhostname ESMTP,Warning: Version not Available!

让postfix 重新加载配置文件

# postfix reload

十一、让postfix 支持虚拟域和虚拟用户

1、编辑/etc/postfix/main.cf,在文件末尾添加如下内容:

########################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:1000

virtual_gid_maps = static:1000

virtual_transport = maildrop

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.

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