特别值得一提的是CentOS extmail安装与extman配置有很多值得学习的地方，这里我们主要介绍CentOS extmail安装，包括介绍extman配置等方面。CentOS extmail安装与extman配置。
A、CentOS extmail安装配置apache
修改/etc/httpd/conf/httpd.conf，将下面的选项改为：
User vuser
Group vgroup
[root@localhost ~]# cd /etc/httpd/conf.d/
[root@localhost conf.d]# vim extmail.conf
输入下面的内容：
Alias /extman/cgi/ /var/www/extsuite/extman/cgi/
Alias /extman /var/www/extsuite/extman/html/
<Location "/extman/cgi">
SetHandler cgi-script
Options +ExecCGI
</Location>
# config for ExtMail
Alias /extmail/cgi/ /var/www/extsuite/extmail/cgi/
Alias /extmail /var/www/extsuite/extmail/html/
<Location "/extmail/cgi">
SetHandler cgi-script
Options +ExecCGI
</Location>
[root@localhost ~]# mkdir /var/www/extsuite
[root@localhost ~]# tar zxf extmail-1.0.5b1.tar.gz
[root@localhost ~]# cp -r extmail-1.0.5b1 /var/www/extsuite/extmail
[root@localhost ~]# cp -r extman-0.2.5b1 /var/www/extsuite/extman
B、配置CentOS extmail安装参数
[root@localhost ~]# cd /var/www/extsuite/extmail/
[root@localhost extmail]# cp webmail.cf.default webmail.cf
修改webmail.cf 下面的选项
SYS_SESS_DIR = /tmp/extmail
SYS_MAILDIR_BASE = /home/data/domains
SYS_MYSQL_USER = extmail
SYS_MYSQL_PASS = extmail
C、CentOS extmail安装配置extman参数
[root@localhost extmail]# cd /var/www/extsuite/extman/
修改webman.cf 下面的选项：
SYS_MAILDIR_BASE = /home/data/domains
D、CentOS extmail安装创建session 目录
[root@localhost extman]# mkdir /tmp/{extman,extmail}
[root@localhost extman]# chown vuser:vgroup /tmp/ext*
E、CentOS extmail安装配置后台日志分析工具
[root@localhost addon]# cd /var/www/extsuite/extman/addon/
[root@localhost addon]# cp -r mailgraph_ext /usr/local/
将下面的内容加入/etc/rc.local
/usr/local/mailgraph_ext/mailgraph-init start
/usr/local/mailgraph_ext/qmonitor-init start
安装所依懒的软件包
[root@localhost mailgraph_ext]# yum -y install rrdtool perl-rrdtool perl-GD perl-File-Tail
F、CentOS extmail安装启动后台进程
[root@localhost mailgraph_ext]# /usr/local/mailgraph_ext/qmonitor-init start
Starting queue statistics grapher: qmonitor
[root@localhost mailgraph_ext]# /usr/local/mailgraph_ext/mailgraph-init start
Starting mail statistics grapher: mailgraph_ext
G、访问CentOS extmail安装与extman
打开浏览器，输入http://your_ip_address/extmail 注意：your_ip_address 为你实际的ip
***个测试用户为：postmaster 密码：extmail 域：extmail
打开浏览器，输入http://your_ip_address/extman
extman root 用户为：root@extmail.org 密码为：extmail*123*
注意：进入系统后要修改密码及找回密码的提示问题、答案。
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